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Dynamic Programming problems
Problem Name Online Judge Year Contest Difficulty Level
1 Collecting Beepers Categories UVA 1
2 Flags Categories Timus 1
3 Coin Change Categories UVA 1
4 Histogram Categories SPOJ 1
5 Grandpa's Walk Categories Live Archive 2012 Asia - Jakarta 1
6 ShorterSuperSum Categories TopCoder SRM 467 - Div2 easy] (14151) 1
7 Cross-country Categories SPOJ 1
8 Tri graphs Categories SPOJ 1
9 Tetrahedron Categories Codeforces Codeforces Round #113 (Div. 2) 1
10 ACM (ACronymMaker) Categories SPOJ 1
11 Blueberries Categories SPOJ 1
12 Kefa and First Steps Categories Codeforces Codeforces Round #321 (Div. 2) 1
13 Kuriyama Mirai's Stones Categories Codeforces Codeforces Round #248 (Div. 2) 1
14 Dividing coins Categories UVA 1
15 The Bale Tower Categories TJU 1
16 Longest Palindrome Categories UVA 1
17 Trees Categories Live Archive 2004 South Pacific 1
18 Cut Ribbon Categories Codeforces Codeforces Round #119 (Div. 2) 1
19 The Twin Towers Categories UVA 1
20 Bridging signals Categories Live Archive 2003 Europe - Northwestern 1
21 Palindrome 2000 Categories SPOJ 1
22 Pilots Categories SPOJ 1
23 Sums in a Triangle Categories CodeChef 1
24 Wedding shopping Categories UVA 1
25 What Goes Up Categories UVA 1
26 Staircases Categories Timus 1
27 The Tower of Babylon Categories UVA 1
28 Fishmonger Categories SPOJ 1
29 Take the Land Categories UVA 1
30 Testing the CATCHER Categories UVA 1
31 Dreamoon and WiFi Categories Codeforces Codeforces Round #272 (Div. 2) 1
32 Candy Categories SPOJ 1
33 Longest Common Substring Categories SPOJ 1
34 Bicoloring Categories UVA 1
35 Fibonacci Freeze Categories UVA 1
36 Given Length and Sum of Digits... Categories Codeforces Codeforces Round #277.5 (Div. 2) 1
37 Aibohphobia Categories SPOJ 1
38 THE DRUNK JAILER Categories PKU 1
39 Petya and Strings Categories Codeforces Codeforces Beta Round #85 (Div. 2 Only) 1
40 Easy Longest Increasing Subsequence Categories SPOJ 1
41 Optimal Array Multiplication Sequence Categories UVA 1
42 Party Schedule Categories SPOJ 1
43 Sums in a Triangle Categories SPOJ 1
44 How do you add? Categories UVA 1
45 Maximum in Table Categories Codeforces Codeforces Round #289 (Div. 2, ACM ICPC Rules) 1
46 Lucky Tickets Categories Timus 1
47 23 out of 5 Categories UVA 1
48 ABC Path Categories SPOJ 1
49 QAQ Categories Codeforces Codeforces Round #447 (Div. 2) 1
50 Exploring Pyramids Categories Live Archive 2005 Europe - Northeastern 1
51 LATGACH3 Categories SPOJ 1
52 The Double HeLiX Categories SPOJ 1
53 New Year and Hurry Categories Codeforces Good Bye 2016 1
54 Cutting Sticks Categories UVA 1
55 Enormous Input Test Categories CodeChef 1
56 Puzzles Categories Codeforces Codeforces Round #196 (Div. 2) 1
57 Scuba diver Categories SPOJ 1
58 Can you answer these queries I Categories SPOJ 1
59 Membership Management Categories Live Archive 2010 Asia - Tokyo 1
60 Stacking Boxes Categories UVA 1
61 Ilya and Queries Categories Codeforces Codeforces Round #186 (Div. 2) 1
62 Two Ends Categories SPOJ 1
63 Fool the Police Categories SPOJ 1
64 Positive or Negative Categories A2 Online Judge 1
65 Luggage Categories UVA 1
66 Edit distance Categories SPOJ 1
67 Tower of Babylon Categories SPOJ 1
68 Number Steps Categories Live Archive 2000 Asia - Tehran 1
69 Binary Lexicographic Sequence Categories Timus 1
70 Largest Submatrix Categories UVA 1
71 Vacation Categories UVA 1
72 Quasi Binary Categories Codeforces Codeforces Round #300 1
73 Boredom Categories Codeforces Codeforces Round #260 (Div. 1) & Codeforces Round #260 (Div. 2) 1
74 Roads Categories SPOJ 1
75 Chocolate Categories SPOJ 1
76 Scientific Conference Categories Timus 1
77 Milliard Vasya's Function Categories Timus 1
78 Candy Categories Live Archive 2008 Latin America - South America 1
79 Flowers Categories Codeforces Codeforces Round #271 (Div. 2) 1
80 Omar Categories A2 Online Judge 1
81 BLAST Categories SPOJ 1
82 Hotels Along the Croatian Coast Categories SPOJ 1
83 Hangover Categories PKU 1
84 Mice and Maze Categories Live Archive 2001 Europe - Southwestern 1
85 Army Categories Codeforces School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) 1
86 Let Me Count The Ways Categories UVA 1
87 Pearls Categories Live Archive 2002 Europe - Northwestern 1
88 0110SS Categories SPOJ 1
89 Vertex Cover Categories SPOJ 1
90 Seinfeld Categories SPOJ 1
91 Pocket Money Categories SPOJ 1
92 Maximum Sum Categories UVA 1
93 Tiling Up Blocks Categories Live Archive 2003 Asia - Kaohsiung 1
94 k-Tree Categories Codeforces Codeforces Round #247 (Div. 2) 1
95 Sereja and Suffixes Categories Codeforces Codeforces Round #215 (Div. 2) 1
96 Summing to a Square Prime Categories SPOJ 1
97 Drazil and Factorial Categories Codeforces Codeforces Round #292 (Div. 2) & Codeforces Round #292 (Div. 1) 1
98 Prime Permutations Categories CodeChef 1
99 History Grading Categories UVA 1
100 Divisibility by Eight Categories Codeforces Codeforces Round #306 (Div. 2) 1
101 Wachovia Bank Categories SPOJ 1
102 Rectangles Perimeter Categories SPOJ 1
103 Bee Walk Categories SPOJ 1
104 Prime Path Categories Live Archive 2006 Europe - Northwestern 1
105 COSTLY CHESS Categories SPOJ 1
106 Before an Exam Categories Codeforces Codeforces Beta Round #4 (Div. 2 Only) 1
107 Treats for the Cows Categories SPOJ 1
108 Alphacode Categories Live Archive 2004 North America - East Central NA 1
109 Party Categories Codeforces Codeforces Beta Round #87 (Div. 1 Only) & Codeforces Beta Round #87 (Div. 2 Only) 1
110 SuperSale Categories UVA 1
111 MAXIMUM WOOD CUTTER Categories SPOJ 1
112 K-based Numbers. Version 2 Categories Timus 1
113 Woodcutters Categories Codeforces Codeforces Round #303 (Div. 2) 1
114 Distinct Subsequences Categories SPOJ 1
115 Assignments Categories SPOJ 1
116 Mixtures Categories SPOJ 1
117 Training for final Categories SPOJ 1
118 DZY Loves Chessboard Categories Codeforces Codeforces Round #254 (Div. 2) 1
119 Strategic Defense Initiative Categories UVA 1
120 Two Substrings Categories Codeforces Codeforces Round #306 (Div. 2) 1
121 Equal Sum Sets Categories Live Archive 2013 Asia - Aizu 1
122 Rent your airplane and make money Categories SPOJ 1
123 Watermelon Categories Codeforces Codeforces Beta Round #4 (Div. 2 Only) 1
124 Save Thy Toys Categories SPOJ 1
125 Ultra-Fast Mathematician Categories Codeforces Codeforces Beta Round #57 (Div. 2) 1
126 Exponentiation Categories PKU 1
127 Soft Drinking Categories Codeforces Codeforces Round #107 (Div. 2) 1
128 Trip Planning Categories Live Archive 2008 Asia - Taipei 1
129 Dollars Categories UVA 1
130 Unidirectional TSP Categories UVA 1
131 Phidias Categories SPOJ 1
132 Chop Ahoy! Revisited! Categories SPOJ 1
133 Permutation Arrays Categories UVA 1
134 T-primes Categories Codeforces Codeforces Round #142 (Div. 2) 1
135 XOR Maximization Categories SPOJ 1
136 BerSU Ball Categories Codeforces Codeforces Round #277.5 (Div. 2) 1
137 Bytelandian gold coins Categories SPOJ 1
138 Square Brackets Categories SPOJ 1
139 Jill Rides Again Categories UVA 1
140 Maximum Sum Categories Timus 1
141 Princess Farida Categories SPOJ 1
142 Tile Code Categories Live Archive 2007 Asia - Seoul 1
143 Aliens at the train Categories SPOJ 1
144 Coins Game Categories SPOJ 1
145 Flipping Game Categories Codeforces Codeforces Round #191 (Div. 2) 1
146 Feynman Categories SPOJ 1
147 Perfection Categories UVA 1
148 Making Change Categories TJU 1
149 Trip Categories SPOJ 1
150 Martian Mining Categories SPOJ 1
151 Black or White Categories SPOJ 1
152 Twin Primes Categories UVA 1
153 Sum of Digits Categories SPOJ 1
154 Homer Simpson Categories UVA 1
155 Longest Common Subsequence Categories UVA 1
156 K-based Numbers Categories Timus 1
157 Divisibility Categories UVA 1
158 Longest Run on a Snowboard Categories UVA 1
159 Mashmokh and ACM Categories Codeforces Codeforces Round #240 (Div. 1) & Codeforces Round #240 (Div. 2) 1
160 Alphacode Categories SPOJ 1
161 Largest Rectangle in a Histogram Categories SPOJ 1
162 The jackpot Categories UVA 1
163 Getting in Line Categories UVA 1
164 Square Country Categories Timus 1
165 Anton and Danik Categories Codeforces Codeforces Round #379 (Div. 2) 1
166 Building Bridges Categories SPOJ 1
167 Divisible Group Sums Categories UVA 1
168 Generations of Tribbles Categories Live Archive 2013 North America - Pacific Northwest 1
169 In Danger Categories SPOJ 1
170 Prime Digital Roots Categories Live Archive 2001 South Pacific 1
171 DIE HARD Categories SPOJ 1
172 Tiling a Grid With Dominoes Categories SPOJ 1
173 Simple Math Categories A2 Online Judge 1
174 Piggy-Bank Categories SPOJ 1
175 Ingenuous Cubrency Categories UVA 1
176 A+B Problem Categories PKU 1
177 Help the soldier Categories SPOJ 1
178 Cleaning Robot Categories SPOJ 1
179 Sweet and Sour Rock Categories SPOJ 1
180 Fibonacci Words Categories Live Archive 2012 World Finals - Warsaw 1
181 Number of Ways Categories Codeforces Codeforces Round #266 (Div. 2) 1
182 Compromise Categories UVA 1
183 Is Bigger Smarter? Categories UVA 1
184 Binary Apple Tree Categories Timus 1
185 Robot Instructions Categories UVA 1
186 Magic Grid Categories SPOJ 1
187 The Great Ball Categories SPOJ 1
188 Adjacent Bit Counts Categories SPOJ 1
189 Philosophers Stone Categories SPOJ 1
190 No Change Categories SPOJ 1
191 Binary Search Tree Categories Live Archive 2010 Asia - Daejeon 1
192 Cormen --- The Best Friend Of a Man Categories Codeforces Codeforces Round #377 (Div. 2) 1
193 Metro Categories Timus 1
194 Non-Decreasing Digits Categories SPOJ 1
195 Fence Categories Codeforces Codeforces Round #211 (Div. 2) 1
196 Cheap Travel Categories Codeforces Codeforces Round #266 (Div. 2) 1
197 DNA Sequences Categories SPOJ 1
198 Buying Apples! Categories SPOJ 1
199 I Can Guess the Data Structure! Categories UVA 1
200 To the Max Categories PKU 1
201 Chat room Categories Codeforces Codeforces Beta Round #54 (Div. 2) 1
202 Joysticks Categories Codeforces Codeforces Round #345 (Div. 2) 1
203 Activities Categories SPOJ 1
204 Tiling a Grid With Dominoes Categories Live Archive 2007 North America - Greater NY 1
205 The 3n + 1 problem Categories UVA 1
206 The Knapsack Problem Categories SPOJ 1
207 Forming Quiz Teams Categories UVA 1
208 Permutations Categories SPOJ 1
209 Feline Olympics - Mouseball Categories SPOJ 2
210 Flight Planner Categories UVA 2
211 Anniversary Party Categories Timus 2
212 Leaves Categories SPOJ 2
213 Problem 3 Categories SPOJ 2
214 Chain Reaction Categories Codeforces Codeforces Round #336 (Div. 1) & Codeforces Round #336 (Div. 2) 2
215 Game of Credit Cards Categories Codeforces Codeforces Round #401 (Div. 2) 2
216 Sinking Ship Categories Codeforces Codeforces Beta Round #59 (Div. 2) 2
217 Chopsticks Categories UVA 2
218 BATMAN3 Categories SPOJ 2
219 Bit Mask Categories UVA 2
220 Restoring Password Categories Codeforces Codeforces Beta Round #76 (Div. 2 Only) 2
221 Destruction Cannon Categories URI 2
222 Jugs Categories UVA 2
223 Con-Junctions Categories SPOJ 2
224 Hard problem Categories Codeforces Codeforces Round #367 (Div. 2) 2
225 Counting The Way of Bracket Replacement Categories SPOJ 2
226 Dancing Cows Categories SPOJ 2
227 Musketeers Categories SPOJ 2
228 Tennis Championship Categories Codeforces Codeforces Round #382 (Div. 2) & Codeforces Round #382 (Div. 1) 2
229 Bing it Categories Live Archive 2009 Asia - Harbin 2
230 Nested Dolls Categories SPOJ 2
231 String to Palindrome Categories UVA 2
232 Up Subsequence Categories SPOJ 2
233 Counting K-Rectangle Categories SPOJ 2
234 Counting binary strings Categories SPOJ 2
235 Painting the balls Categories SGU 2
236 Another Longest Increasing Subsequence Problem Categories SPOJ 2
237 Little Elephant and Painting Categories CodeChef 2
238 Covered Path Categories Codeforces Codeforces Round #298 (Div. 2) 2
239 Card Sorting Categories SPOJ 2
240 Interesting number Categories SPOJ 2
241 Always on the run Categories UVA 2
242 Fibonacci System Categories Live Archive 2008 Europe - Northeastern 2
243 Kyoya and Colored Balls Categories Codeforces Codeforces Round #309 (Div. 1) & Codeforces Round #309 (Div. 2) 2
244 Unnatural Conditions Categories Codeforces AIM Tech Round 5 (rated, Div. 1 + Div. 2) 2
245 String Partition Categories UVA 2
246 KTV Categories UVA 2
247 BATMAN2 Categories SPOJ 2
248 Diving for Gold Categories UVA 2
249 Soldier and Number Game Categories Codeforces Codeforces Round #304 (Div. 2) 2
250 Erdos Numbers Categories Live Archive 2000 Europe - Northwestern & Europe - Southwestern & Europe - Mid-Central 2
251 Inna and Choose Options Categories Codeforces Codeforces Round #234 (Div. 2) 2
252 Menu Categories SPOJ 2
253 Dab of Backpack Categories SPOJ 2
254 Wooden Sticks Categories SPOJ 2
255 Another Box Problem Categories SPOJ 2
256 Mosaic Categories Live Archive 2009 North America - Southeast USA 2
257 Weights and Measures Categories UVA 2
258 Game of Sum Categories UVA 2
259 Queue Categories UVA 2
260 Tourist Categories SPOJ 2
261 Bicolored Horses Categories Timus 2
262 Make Palindrome Categories UVA 2
263 Decoding Morse Sequences Categories SPOJ 2
264 Functions again Categories Codeforces Codeforces Round #407 (Div. 1) & Codeforces Round #407 (Div. 2) 2
265 Squares Categories UVA 2
266 Deliver pizza Categories SPOJ 2
267 NERED Categories SPOJ 2
268 Shopping Categories Live Archive 2014 Asia - Tokyo 2
269 Pebble Solitaire Categories UVA 2
270 Boxes Categories UVA 2
271 Square Categories UVA 2
272 Another Problem on Strings Categories Codeforces Codeforces Round #112 (Div. 2) 2
273 Maximum Sub-sequence Product Categories UVA 2
274 Nudnik Photographer Categories Timus 2
275 Chop Ahoy! Revisited! Categories Live Archive 2005 Africa/Middle East - Arab and North Africa 2
276 Pebbles Categories Live Archive 2007 North America - Pacific Northwest & North America - Southern California 2
277 LUCIFER Number Categories SPOJ 2
278 Ferry Loading Categories UVA 2
279 Again Palindrome Categories UVA 2
280 Color the Fence Categories Codeforces Codeforces Round #202 (Div. 2) 2
281 Reposts Categories Codeforces VK Cup 2015 - Qualification Round 1 2
282 Particular Palindromes Categories SPOJ 2
283 Street Categories SPOJ 2
284 Ice Sculptures Categories Codeforces VK Cup 2012 Qualification Round 1 2
285 Railway Tickets Categories Timus 2
286 Murcia's Skyline Categories UVA 2
287 New Year and Domino Categories Codeforces Good Bye 2015 2
288 Walking on the Safe Side Categories UVA 2
289 Land Acquisition Categories SPOJ 2
290 Making A Budget Categories SPOJ 2
291 Dice Categories SPOJ 2
292 Pay the Price Categories UVA 2
293 False Mirrors Categories Timus 2
294 Balancing the Stone Categories SPOJ 2
295 Handball Categories UVA 2
296 Threeprime Numbers Categories Timus 2
297 Mr. Kitayuta's Colorful Graph Categories Codeforces Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) 2
298 The Courier Categories SPOJ 2
299 Concert Tour Categories Live Archive 2014 Asia - Bangkok 2
300 Fibo Categories A2 Online Judge 2
301 Slurpys Categories UVA 2
302 Triangular N-Queens Problem Categories Live Archive 2006 North America - Greater NY 2
303 Segments Categories Timus 2
304 Approximating a Constant Range Categories Codeforces Codeforces Round #333 (Div. 2) 2
305 Temptation Island Categories SPOJ 2
306 Brackets Sequence Categories Timus 2
307 G-One Numbers Categories SPOJ 2
308 Space Elevator Categories PKU 2
309 Modulo Sum Categories Codeforces Codeforces Round #319 (Div. 2) 2
310 JEDNAKOST Categories SPOJ 2
311 I-Keyboard Categories SPOJ 2
312 Quadratic Equation Categories SPOJ 2
313 String Distance and Transform Process Categories UVA 2
314 Photo to Remember Categories Codeforces VK Cup 2015 - Qualification Round 1 2
315 Partition Categories SPOJ 2
316 String Shuffle Categories SPOJ 2
317 Pride Categories Codeforces Codeforces Round #446 (Div. 1) & Codeforces Round #446 (Div. 2) 2
318 String Computer Categories UVA 2
319 BATMAN1 Categories SPOJ 2
320 Simple Minded Hashing Categories UVA 2
321 Sum of Different Primes Categories UVA 2
322 Geometric Progression Categories Codeforces Codeforces Round #Pi (Div. 2) 2
323 Marks Distribution Categories UVA 2
324 Optimal Binary Search Tree Categories UVA 2
325 Ministry Categories Timus 2
326 Distinct Subsequences Categories UVA 2
327 Longest Match Categories UVA 2
328 Motoboy Categories URI 2
329 DZY Loves Sequences Categories Codeforces Codeforces Round #255 (Div. 1) & Codeforces Round #255 (Div. 2) 2
330 Password Categories Codeforces Codeforces Beta Round #93 (Div. 1 Only) & Codeforces Beta Round #93 (Div. 2 Only) 2
331 Mr. Kitayuta's Gift Categories Codeforces Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) 2
332 Sorting is not easy Categories SPOJ 2
333 A DP Problem Categories Live Archive 2003 Asia - Tehran 2
334 Sequence Categories Live Archive 2014 Asia - Kuala Lumpur 2
335 Rain Categories SPOJ 2
336 Tight Words Categories UVA 2
337 Journey Categories Codeforces Codeforces Round #428 (Div. 2) 2
338 Catch Fish Categories SPOJ 2
339 Alternative Thinking Categories Codeforces Codeforces Round #334 (Div. 1) & Codeforces Round #334 (Div. 2) 2
340 Ra-One Numbers Categories SPOJ 2
341 Drop the Triples Categories Live Archive 2007 Latin America - South America 2
342 Black-White Grid Categories Live Archive 2006 Asia - Hanoi 2
343 Yoda Goes Palindromic ! Categories SPOJ 2
344 Cow Frisbee Team Categories TJU 2
345 String problem Categories SPOJ 2
346 Esferas Categories SPOJ 2
347 Timofey and a tree Categories Codeforces Codeforces Round #395 (Div. 1) & Codeforces Round #395 (Div. 2) 2
348 Polo the Penguin and Strings Categories Codeforces Codeforces Round #177 (Div. 1) & Codeforces Round #177 (Div. 2) 2
349 The Marriage Interview :-) Categories UVA 2
350 Beautiful People Categories SGU 2
351 1807 Categories SPOJ 2
352 Another Tree Problem Categories SPOJ 2
353 Maximum sum on a torus Categories UVA 2
354 Game Show Math Categories UVA 2
355 Chest of Drawers Categories UVA 2
356 Tiling Categories UVA 2
357 Caesar's Legions Categories Codeforces Codeforces Beta Round #89 (Div. 2) 2
358 Trouble of 13-Dots Categories UVA 2
359 Point Connection Game in a Circle Categories SPOJ 2
360 Making Change Categories UVA 2
361 Mobile Service Categories SPOJ 2
362 George and Job Categories Codeforces Codeforces Round #267 (Div. 2) 2
363 Travelling Salesman Categories UVA 2
364 Polo the Penguin and Matrix Categories Codeforces Codeforces Round #177 (Div. 2) 2
365 Bar Codes Categories UVA 2
366 Tower of Cubes Categories UVA 2
367 Three-coloring of binary trees Categories SPOJ 2
368 Vasya and String Categories Codeforces Codeforces Round #354 (Div. 2) 2
369 Re-Arrange II Categories SPOJ 3
370 Probablistic OR Categories SPOJ 3
371 Fetching Cooking Tools Categories CodeChef 3
372 Common Subsequences Categories SPOJ 3
373 Candy (Again) Categories SPOJ 3
374 Arpa's weak amphitheater and Mehrdad's valuable Hoses Categories Codeforces Codeforces Round #383 (Div. 1) & Codeforces Round #383 (Div. 2) 3
375 Combo Deal Categories UVA 3
376 Car with powers Categories SPOJ 3
377 Slikar Categories SPOJ 3
378 The least round way Categories Codeforces Codeforces Beta Round #2 3
379 Longtail Hedgehog Categories Codeforces Codeforces Round #338 (Div. 2) 3
380 Little Elephant and Interval Categories Codeforces Codeforces Round #129 (Div. 1) & Codeforces Round #129 (Div. 2) 3
381 Walking Around Wisely Categories UVA 3
382 Free Candies Categories UVA 3
383 Hierarchy Categories Timus 3
384 Working out Categories Codeforces Codeforces Round #245 (Div. 1) & Codeforces Round #245 (Div. 2) 3
385 Bear and Compressing Categories Codeforces IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) 3
386 Polygon Categories SPOJ 3
387 Mike and gcd problem Categories Codeforces Codeforces Round #410 (Div. 2) 3
388 Booking System Categories Codeforces Codeforces Round #241 (Div. 2) 3
389 Partition the sequence Categories SPOJ 3
390 Determine it Categories UVA 3
391 Cards, bags and coins Categories CodeChef 3
392 Zuma Categories Codeforces Codeforces Round #336 (Div. 1) & Codeforces Round #336 (Div. 2) 3
393 Permutation Categories Codeforces Codeforces Round #209 (Div. 2) 3
394 Good Sequences Categories Codeforces Codeforces Round #162 (Div. 1) & Codeforces Round #162 (Div. 2) 3
395 Plug-in Categories Codeforces Yandex.Algorithm Open 2011 Qualification 1 3
396 Kefa and Dishes Categories Codeforces Codeforces Round #321 (Div. 2) 3
397 Simple Strings Categories Codeforces Educational Codeforces Round 12 3
398 To Add or Not to Add Categories Codeforces Codeforces Round #143 (Div. 2) 3
399 Bribe the Prisoners Categories SPOJ 3
400 Color Stripe Categories Codeforces Codeforces Round #135 (Div. 2) 3
401 Beautiful Numbers Categories UVA 3
402 Mike and Feet Categories Codeforces Codeforces Round #305 (Div. 1) & Codeforces Round #305 (Div. 2) 3
403 Omar Loves Candies Categories A2 Online Judge 3
404 Minus Operation Categories SPOJ 3
405 Save the problem! Categories Codeforces MemSQL Start[c]UP 3.0 - Round 2 (onsite finalists) 3
406 Orchard Trees Categories UVA 3
407 Mysterious Present Categories Codeforces Codeforces Beta Round #4 (Div. 2 Only) 3
408 Ilya and Escalator Categories Codeforces Codeforces Round #293 (Div. 2) 3
409 Count Paths Categories A2 Online Judge 3
410 Long Path Categories Codeforces Codeforces Round #239 (Div. 1) & Codeforces Round #239 (Div. 2) 3
411 Greenhouse Effect Categories Codeforces Codeforces Round #165 (Div. 1) & Codeforces Round #165 (Div. 2) 3
412 Journey Categories Codeforces Codeforces Round #374 (Div. 2) 3
413 RGBStreet Categories TopCoder SRM 325 - Div2 medium] (10005) 3
414 Little Red Riding Hood Categories UVA 3
415 Little Girl and Maximum XOR Categories Codeforces Codeforces Round #169 (Div. 2) 3
416 Triangles Categories Live Archive 2014 South Pacific 3
417 Budget Travel Categories UVA 3
418 Sagheer, the Hausmeister Categories Codeforces Codeforces Round #417 (Div. 2) 3
419 Even Palindrome Categories SPOJ 3
420 Physics Practical Categories Codeforces Codeforces Round #154 (Div. 2) 3
421 BadNeighbors Categories TopCoder TCCC '04 Round 4 - Div1 easy] (5009) 3
422 Zeta-Nim Game Categories CodeChef 3
423 String Popping Categories UVA 3
424 Barcode Categories Codeforces Codeforces Round #139 (Div. 2) 3
425 ACM (ACronym Maker) Categories Live Archive 2005 North America - East Central NA 3
426 Crime Wave - The Sequel Categories UVA 3
427 Mr. Kitayuta, the Treasure Hunter Categories Codeforces Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) 3
428 Recycling Bottles Categories Codeforces Codeforces Round #352 (Div. 1) & Codeforces Round #352 (Div. 2) 3
429 Palindromic Subsequence Categories UVA 3
430 Tour Categories UVA 3
431 Building Bridges(HARD) Categories SPOJ 3
432 Many polygons Categories SPOJ 3
433 Ada and Game Categories SPOJ 3
434 Gargari and Permutations Categories Codeforces Codeforces Round #264 (Div. 2) 3
435 An impassioned circulation of affection Categories Codeforces Codeforces Round #418 (Div. 2) 3
436 How Many O's? Categories UVA 3
437 Minimal Coverage Categories Timus 3
438 IOI07 Miners Categories SPOJ 3
439 Scheduling Lectures Categories UVA 3
440 New Skateboard Categories Codeforces Educational Codeforces Round 8 3
441 Longest Regular Bracket Sequence Categories Codeforces Codeforces Beta Round #5 3
442 Paid Roads Categories SPOJ 3
443 Help Bob Categories SPOJ 3
444 Many Paths, One Destination Categories UVA 3
445 Best Coalitions Categories UVA 3
446 Fast Food Categories UVA 3
447 Alyona and Spreadsheet Categories Codeforces Codeforces Round #401 (Div. 2) 3
448 Little Elephant and Movies Categories CodeChef 3
449 Gentlemen Categories Timus 3
450 Intervals of Monotonicity Categories Timus 3
451 Petya and Java Categories Codeforces Codeforces Beta Round #61 (Div. 2) 3
452 End up with More Teams Categories UVA 3
453 Hard Process Categories Codeforces Educational Codeforces Round 11 3
454 The Secret of an Aerolite Categories SPOJ 3
455 The Vindictive Coach Categories UVA 3
456 Most Servings Meal Categories SPOJ 3
457 Writing Code Categories Codeforces Codeforces Round #302 (Div. 1) & Codeforces Round #302 (Div. 2) 3
458 Cards Categories Codeforces 8VC Venture Cup 2016 - Elimination Round 3
459 Robbers' watch Categories Codeforces Codeforces Round #359 (Div. 1) & Codeforces Round #359 (Div. 2) 3
460 Maximum Triangle Area Categories SPOJ 3
461 Sum of Digits Categories Timus 3
462 Maximum Absurdity Categories Codeforces Codeforces Round #193 (Div. 2) 3
463 Coloring Trees Categories Codeforces Codeforces Round #369 (Div. 2) 3
464 Distance in Tree Categories Codeforces VK Cup 2012 Round 1 3
465 COUNT PAREN Categories SPOJ 3
466 Pleasing Chief Categories CodeChef 3
467 Vanya and Scales Categories Codeforces Codeforces Round #308 (Div. 2) 3
468 Xenia and Weights Categories Codeforces Codeforces Round #197 (Div. 2) 3
469 Shopping Trip Categories UVA 3
470 Hopeless Coach Categories TJU 3
471 Choosing Capital for Treeland Categories Codeforces Codeforces Round #135 (Div. 2) 3
472 Fewest Flops Categories UVA 3
473 Alyona and the Tree Categories Codeforces Codeforces Round #358 (Div. 2) 3
474 Bear and Prime Numbers Categories Codeforces Codeforces Round #226 (Div. 2) 3
475 Mahmoud and a Message Categories Codeforces Codeforces Round #396 (Div. 2) 3
476 A and B and Interesting Substrings Categories Codeforces Codeforces Round #294 (Div. 2) 3
477 ZigZag Categories TopCoder TCCC '03 Semifinals 3 - Div1 easy] (4493) 3
478 Sereja and Game Categories CodeChef 3
479 I-Keyboard Categories Live Archive 2000 Europe - Central 3
480 Bear and Blocks Categories Codeforces Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 1) & Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) 3
481 Ladder Categories Codeforces Codeforces Round #171 (Div. 2) 3
482 Sense of Beauty Categories Timus 3
483 Internet Address Categories Codeforces CROC-MBTU 2012, Elimination Round (ACM-ICPC) 3
484 The Debut Album Categories Timus 3
485 Mnemonics and Palindromes Categories Timus 3
486 Make Psycho Categories SPOJ 3
487 AGTC Categories UVA 3
488 Dynamic LCA Categories SPOJ 3
489 Greg and Graph Categories Codeforces Codeforces Round #179 (Div. 1) & Codeforces Round #179 (Div. 2) 3
490 Traveling by Stagecoach Categories SPOJ 3
491 Greedy Hydra Categories SPOJ 3
492 Lazy Math Instructor Categories Live Archive 2000 Asia - Tehran 3
493 The Matrix Game Categories CodeChef 3
494 Painting Fence Categories Codeforces Codeforces Round #256 (Div. 2) 3
495 Bubble Sort Graph Categories Codeforces Codeforces Round #198 (Div. 2) & Codeforces Round #198 (Div. 1) 3
496 Hackers' Crackdown Categories UVA 3
497 FOODIE Categories SPOJ 3
498 String reduction Categories SPOJ 3
499 Raucous Rockers Categories UVA 3
500 Term Strategy Categories UVA 3
501 Hippity Hopscotch Categories UVA 3
502 Art Union Categories Codeforces Codeforces Round #241 (Div. 2) 3
503 A DP Problem Categories UVA 4
504 Minion Circle Categories CodeChef 4
505 Lov-e Pap Pap-e Polti Categories SPOJ 4
506 Maximum Submatrix 2 Categories Codeforces Codeforces Round #221 (Div. 1) & Codeforces Round #221 (Div. 2) 4
507 Riding in a Lift Categories Codeforces Codeforces Round #274 (Div. 2) & Codeforces Round #274 (Div. 1) 4
508 Bottle Taps Categories Timus 4
509 Gerald and Giant Chess Categories Codeforces Codeforces Round #313 (Div. 1) & Codeforces Round #313 (Div. 2) 4
510 Appleman and Tree Categories Codeforces Codeforces Round #263 (Div. 1) & Codeforces Round #263 (Div. 2) 4
511 The Child and Zoo Categories Codeforces Codeforces Round #250 (Div. 2) & Codeforces Round #250 (Div. 1) 4
512 XOR Equation Categories Codeforces 8VC Venture Cup 2016 - Final Round 4
513 Hometask Categories Codeforces Codeforces Round #131 (Div. 2) 4
514 Gasoline Station Categories Timus 4
515 Red-Green Towers Categories Codeforces Codeforces Round #273 (Div. 2) 4
516 Expect the Expected Categories UVA 4
517 Zero Tree Categories Codeforces Codeforces Round #168 (Div. 1) & Codeforces Round #168 (Div. 2) 4
518 Boy Scouts Categories SPOJ 4
519 Fire Again Categories Codeforces Codeforces Beta Round #35 (Div. 2) 4
520 The Bridges of Kolsberg Categories UVA 4
521 Pashmak and Graph Categories Codeforces Codeforces Round #261 (Div. 2) 4
522 Bright Bracelet Categories Live Archive 2003 North America - Mid-Central USA 4
523 Round Table Knights Categories Codeforces Codeforces Beta Round #65 (Div. 2) 4
524 Malevich Strikes Back! Categories Timus 4
525 Buns Categories Codeforces Codeforces Beta Round #82 (Div. 2) 4
526 Classmates 2 Categories Timus 4
527 Little Pony and Harmony Chest Categories Codeforces Codeforces Round #259 (Div. 1) & Codeforces Round #259 (Div. 2) 4
528 Babaei and Birthday Cake Categories Codeforces Codeforces Round #343 (Div. 2) 4
529 Cookies Categories Codeforces Codeforces Beta Round #64 4
530 Can U Win? Categories UVA 4
531 A Lot of Games Categories Codeforces Codeforces Round #260 (Div. 1) & Codeforces Round #260 (Div. 2) 4
532 Office Keys Categories Codeforces Codeforces Round #424 (Div. 1, rated, based on VK Cup Finals) & Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) 4
533 Dominoes Categories SPOJ 4
534 Chilly Willy Categories Codeforces Codeforces Round #152 (Div. 2) 4
535 Reberland Linguistics Categories Codeforces Codeforces Round #349 (Div. 1) & Codeforces Round #349 (Div. 2) 4
536 Pie Rules Categories Codeforces MemSQL Start[c]UP 3.0 - Round 1 4
537 Expression Again Categories UVA 4
538 Image Preview Categories Codeforces Codeforces Round #345 (Div. 1) & Codeforces Round #345 (Div. 2) 4
539 Weather Categories Codeforces Codeforces Round #145 (Div. 2, ACM-ICPC Rules) 4
540 SMS Categories Timus 4
541 Magic, Wizardry and Wonders Categories Codeforces Codeforces Round #143 (Div. 2) 4
542 Eternal Victory Categories Codeforces Codeforces Beta Round #57 (Div. 2) 4
543 INVITATION FOR TECHOFES Categories SPOJ 4
544 Zeros and Ones Categories UVA 4
545 Dima and Salad Categories Codeforces Codeforces Round #214 (Div. 2) 4
546 Bag of mice Categories Codeforces Codeforces Round #105 (Div. 2) 4
547 Fools and Roads Categories Codeforces Codeforces Round #121 (Div. 1) & Codeforces Round #121 (Div. 2) 4
548 Rent your airplane and make money Categories Live Archive 2003 Europe - Southwestern 4
549 Matches Categories UVA 4
550 Convex Polygons Categories SPOJ 4
551 Connecting Universities Categories Codeforces Codeforces Round #364 (Div. 1) & Codeforces Round #364 (Div. 2) 4
552 Shaass and Bookshelf Categories Codeforces Codeforces Round #178 (Div. 2) 4
553 Python Indentation Categories Codeforces Codeforces Round #455 (Div. 2) 4
554 Forming Teams Categories Codeforces Codeforces Round #133 (Div. 2) 4
555 BATMAN4 Categories SPOJ 4
556 Cái túi ( Hard version ) Categories SPOJ Vietnam 4
557 Hometask Categories Codeforces Codeforces Round #109 (Div. 1) & Codeforces Round #109 (Div. 2) 4
558 Chocolate Categories SPOJ 4
559 Another Assignment Problem Categories SPOJ 4
560 Avoiding Jungle in the Dark Categories UVA 4
561 Palindrome pairs Categories Codeforces VK Cup 2012 Qualification Round 2 4
562 Letter Categories Codeforces Codeforces Round #116 (Div. 2, ACM-ICPC Rules) 4
563 Book of Evil Categories Codeforces Codeforces Round #196 (Div. 2) & Codeforces Round #196 (Div. 1) 4
564 Clique Problem Categories Codeforces Codeforces Round #296 (Div. 2) & Codeforces Round #296 (Div. 1) 4
565 Vladik and Memorable Trip Categories Codeforces Codeforces Round #416 (Div. 2) 4
566 Ingredients Categories SPOJ 4
567 Crack Categories Timus 4
568 Digit Sum Categories UVA 4
569 Chloe and pleasant prizes Categories Codeforces Codeforces Round #384 (Div. 2) 4
570 Enemy is weak Categories Codeforces Codeforces Beta Round #57 (Div. 2) 4
571 ICPC Team Strategy Categories UVA 4
572 Drazil and Tiles Categories Codeforces Codeforces Round #292 (Div. 2) & Codeforces Round #292 (Div. 1) 4
573 Namit In Trouble Categories SPOJ 4
574 Bit by Bit Categories SPOJ 4
575 Little Elephant and Blocks Categories CodeChef 4
576 Civilization Categories Codeforces Codeforces Round #260 (Div. 1) & Codeforces Round #260 (Div. 2) 4
577 DIVSEQ Categories SPOJ 4
578 Party Categories A2 Online Judge 4
579 Lemon Tale Categories Timus 4
580 Arthur and Table Categories Codeforces Codeforces Round #311 (Div. 2) 4
581 New Year and Fireworks Categories Codeforces Good Bye 2016 4
582 Divide and conquer Categories CodeChef 4
583 Matchsticks Categories TJU 4
584 Drop the Triples Categories SPOJ 4
585 Generate a String Categories Codeforces Educational Codeforces Round 16 4
586 Dumb Bones Categories UVA 4
587 Cow Program Categories Codeforces Codeforces Round #174 (Div. 1) & Codeforces Round #174 (Div. 2) 4
588 Message Categories Codeforces Codeforces Round #110 (Div. 1) & Codeforces Round #110 (Div. 2) 4
589 Fortune Telling Categories Codeforces Codeforces Beta Round #55 (Div. 2) 4
590 Mars Canals Categories Timus 4
591 Philip J. Fry Problem Categories UVA 4
592 Chocolate Box Categories UVA 4
593 Balanced Numbers Categories SPOJ 4
594 Tiling Dominoes Categories UVA 4
595 Communication Fiend Categories Timus 4
596 Assignments Categories Live Archive 2010 Asia - Harbin 4
597 Antimatter Ray Clearcutting Categories UVA 4
598 Batman Categories UVA 4
599 Almost Arithmetical Progression Categories Codeforces Codeforces Round #156 (Div. 2) & Codeforces Round #156 (Div. 1) 4
600 Folding Categories Timus 4
601 Number of Paths in the Empire Categories SGU 4
602 Antimonotonicity Categories UVA 4
603 XOR-pyramid Categories Codeforces Codeforces Round #483 (Div. 1) [Thanks, Botan Investments and Victor Shaburov!] & Codeforces Round #483 (Div. 2) [Thanks, Botan Investments and Victor Shaburov!] 4
604 Account Book Categories UVA 4
605 Who is The Boss Categories SPOJ 4
606 Jeff and Rounding Categories Codeforces Codeforces Round #204 (Div. 1) & Codeforces Round #204 (Div. 2) 4
607 Prefixes and Suffixes Categories Codeforces Codeforces Round #246 (Div. 2) 4
608 Queries for Number of Palindromes Categories Codeforces CROC-MBTU 2012, Elimination Round (ACM-ICPC) 4
609 Fire Categories Codeforces Codeforces Round #436 (Div. 2) 4
610 Fox And Jumping Categories Codeforces Codeforces Round #290 (Div. 2) & Codeforces Round #290 (Div. 1) 4
611 Free Parentheses Categories UVA 4
612 Najkraci Categories SPOJ 4
613 Let go to the movies Categories SPOJ 4
614 Once Again... Categories Codeforces Codeforces Round #323 (Div. 1) & Codeforces Round #323 (Div. 2) 4
615 Going Postal Categories Live Archive 2014 South Pacific 4
616 Binary Search Categories Live Archive 2000 Europe - Northeastern 4
617 The Values You Can Make Categories Codeforces Codeforces Round #360 (Div. 1) & Codeforces Round #360 (Div. 2) 4
618 Busy Programmer Categories UVA 4
619 Bridge Building Categories UVA 4
620 Trees Again Categories SPOJ 4
621 One-two, One-two 2 Categories Timus 4
622 The Intriguing Obsession Categories Codeforces Codeforces Round #439 (Div. 2) 4
623 Fatawy Categories SPOJ 4
624 Bad Luck Island Categories Codeforces Codeforces Round #301 (Div. 2) 4
625 A and B and Lecture Rooms Categories Codeforces Codeforces Round #294 (Div. 2) 4
626 Mario Kart Categories A2 Online Judge 5
627 Dima and Hares Categories Codeforces Codeforces Round #208 (Div. 2) 5
628 Number With The Given Amount Of Divisors Categories Codeforces Codeforces Beta Round #27 (Codeforces format, Div. 2) 5
629 Valid Sets Categories Codeforces Codeforces Round #277 (Div. 2) 5
630 Jeff and Furik Categories Codeforces Codeforces Round #204 (Div. 1) & Codeforces Round #204 (Div. 2) 5
631 Optimal Cut Categories UVA 5
632 Fibonacci Words Categories UVA 5
633 Sum Categories Codeforces Codeforces Beta Round #46 (Div. 2) 5
634 An overnight dance in discotheque Categories Codeforces Codeforces Round #418 (Div. 2) 5
635 JUMPING DORA Categories SPOJ 5
636 Counting Rectangles is Fun Categories Codeforces Codeforces Round #219 (Div. 1) & Codeforces Round #219 (Div. 2) 5
637 Substring and Subsequence Categories Codeforces VK Cup 2012 Round 2 5
638 Two Paths Categories Codeforces Codeforces Beta Round #14 (Div. 2) 5
639 Connect Line Segments Categories SPOJ 5
640 The Great Julya Calendar Categories Codeforces ABBYY Cup 3.0 - Finals (online version) 5
641 Games with Rectangle Categories Codeforces Codeforces Beta Round #94 (Div. 1 Only) & Codeforces Beta Round #94 (Div. 2 Only) 5
642 Count Digits Categories CodeChef 5
643 Connected Components Categories Codeforces Croc Champ 2013 - Round 1 5
644 A Simple Task Categories Codeforces Codeforces Beta Round #11 5
645 Sums of Digits Categories Codeforces Codeforces Round #289 (Div. 2, ACM ICPC Rules) 5
646 Bear and Tower of Cubes Categories Codeforces Codeforces Round #356 (Div. 1) & Codeforces Round #356 (Div. 2) 5
647 IPL - CRICKET TOURNAMENT Categories SPOJ 5
648 Inversions problem Categories Codeforces Rockethon 2015 5
649 Allergy Test Categories UVA 5
650 Longest Increasing Sequence Categories UVA 5
651 Patches Categories URI 5
652 DNA Laboratory Categories SPOJ 5
653 Petr# Categories Codeforces Codeforces Beta Round #86 (Div. 1 Only) & Codeforces Beta Round #86 (Div. 2 Only) 5
654 Ciel and Duel Categories Codeforces Codeforces Round #190 (Div. 1) & Codeforces Round #190 (Div. 2) 5
655 Spiders Categories Codeforces School Regional Team Contest, Saratov, 2011 5
656 Dynasty Puzzles Categories Codeforces Codeforces Round #121 (Div. 1) & Codeforces Round #121 (Div. 2) 5
657 Kalila and Dimna in the Logging Industry Categories Codeforces Codeforces Round #189 (Div. 1) & Codeforces Round #189 (Div. 2) 5
658 Running Track Categories Codeforces Codeforces Round #338 (Div. 2) 5
659 Restaurant Categories Codeforces Testing Round #12 5
660 HexagonalBattlefield Categories TopCoder SRM 449 - Div1 medium] (13903) 5
661 Anniversary Firework Categories Timus 5
662 K-based Numbers. Version 3 Categories Timus 5
663 Pillars Categories Codeforces Codeforces Round #271 (Div. 2) 5
664 Covering Sets Categories CodeChef 5
665 Logo Turtle Categories Codeforces Codeforces Beta Round #96 (Div. 1) & Codeforces Beta Round #96 (Div. 2) 5
666 Basketball Team Categories Codeforces Codeforces Beta Round #83 (Div. 1 Only) & Codeforces Beta Round #83 (Div. 2 Only) 5
667 Bargaining Table Categories Codeforces Codeforces Beta Round #22 (Div. 2 Only) 5
668 Sereja and Bubble Sort Categories CodeChef 5
669 Lucky Common Subsequence Categories Codeforces Codeforces Round #201 (Div. 1) & Codeforces Round #201 (Div. 2) 5
670 WordMath Categories TopCoder Unknown () 5
671 Sequence Categories Codeforces Codeforces Beta Round #13 5
672 Subsequence Problem Categories SPOJ 5
673 Running with Obstacles Categories Codeforces VK Cup 2016 - Qualification Round 1 5
674 Roman and Numbers Categories Codeforces Codeforces Round #235 (Div. 2) 5
675 Super M Categories Codeforces Codeforces Round #328 (Div. 2) 5
676 Levko and Array Categories Codeforces Codeforces Round #210 (Div. 1) & Codeforces Round #210 (Div. 2) 5
677 Choosing Balls Categories Codeforces Codeforces Round #162 (Div. 1) & Codeforces Round #162 (Div. 2) 5
678 Strip Categories Codeforces Codeforces Round #278 (Div. 1) & Codeforces Round #278 (Div. 2) 5
679 Clique in the Divisibility Graph Categories Codeforces VK Cup 2015 - Finals, online mirror 5
680 Independent Attacking Zones Categories UVA 5
681 The Unreal Tournament Categories UVA 5
682 Clear Symmetry Categories Codeforces Codeforces Round #127 (Div. 1) & Codeforces Round #127 (Div. 2) 5
683 Alyona and Strings Categories Codeforces Codeforces Round #358 (Div. 2) 5
684 The Bakery Categories Codeforces Codeforces Round #426 (Div. 1) & Codeforces Round #426 (Div. 2) 5
685 How many trees? Categories Codeforces Codeforces Beta Round #9 (Div. 2 Only) 5
686 Compatible Numbers Categories Codeforces Codeforces Round #112 (Div. 2) 5
687 Porcelain Categories Codeforces Codeforces Round #105 (Div. 2) 5
688 Party trouble Categories SPOJ 5
689 Obsessive String Categories Codeforces Codeforces Round #282 (Div. 1) & Codeforces Round #282 (Div. 2) 5
690 Inna and Dima Categories Codeforces Codeforces Round #220 (Div. 2) 5
691 Minimization Categories Codeforces Codeforces Round #317 [AimFund Thanks-Round] (Div. 1) & Codeforces Round #317 [AimFund Thanks-Round] (Div. 2) 5
692 Iahub and Permutations Categories Codeforces Codeforces Round #198 (Div. 2) & Codeforces Round #198 (Div. 1) 5
693 Candy Categories UVA 5
694 Weak Links Categories UVA 5
695 Summing Slopes Categories CodeChef 5
696 Lucky Tree Categories Codeforces Codeforces Beta Round #84 (Div. 1 Only) & Codeforces Beta Round #84 (Div. 2 Only) 5
697 Happiness to People! Categories Timus 5
698 CreatureTraining Categories TopCoder TCO08 Round 2 - Div1 medium] (12012) 5
699 Elimination Categories Codeforces RCC 2014 Warmup (Div. 2) 5
700 Coin Changing Again Categories UVA 5
701 Upgrading Array Categories Codeforces Codeforces Round #236 (Div. 2) & Codeforces Round #236 (Div. 1) 5
702 Square Subsets Categories Codeforces Codeforces Round #448 (Div. 2) 5
703 Huffman´s Greed Categories SPOJ 5
704 Roadworks Categories Timus 5
705 Increase Sequence Categories Codeforces Codeforces Round #266 (Div. 2) 5
706 E-mail Categories Timus 5
707 Chocolate Bar Categories Codeforces Educational Codeforces Round 1 5
708 Breaking Good Categories Codeforces Codeforces Round #287 (Div. 2) 5
709 Atomic Car Race Categories UVA 5
710 Hotel Categories Live Archive 2005 Asia - Tehran 5
711 Winter is here Categories Codeforces Codeforces Round #428 (Div. 2) 5
712 Antimatter Categories Codeforces Codeforces Round #225 (Div. 1) 5
713 Ship Routes Categories Timus 5
714 Enterprise Categories Timus 5
715 Robot Rapping Results Report Categories Codeforces CROC 2016 - Elimination Round 5
716 Hanoi Factory Categories Codeforces Codeforces Round #401 (Div. 2) 5
717 Testing the CATCHER Categories Live Archive 1994 World Finals - Phoenix 5
718 GO FOR DIAMONDS Categories SPOJ 5
719 Symmetric and Transitive Categories Codeforces Codeforces Round #315 (Div. 1) & Codeforces Round #315 (Div. 2) 5
720 Vasya and Beautiful Arrays Categories Codeforces Codeforces Round #206 (Div. 1) & Codeforces Round #206 (Div. 2) 5
721 Train Categories Timus 5
722 The Islands Categories UVA 5
723 Famil Door and Brackets Categories Codeforces Codeforces Round #343 (Div. 2) 5
724 Correcting Mistakes Categories Codeforces VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) 5
725 Checkout Assistant Categories Codeforces Codeforces Beta Round #19 5
726 Cargo Agency Categories Timus 5
727 Paint the Tree Categories CodeChef 5
728 Promotion Categories URI 5
729 Berzerk Categories Codeforces Codeforces Round #406 (Div. 1) & Codeforces Round #406 (Div. 2) 5
730 Spy Syndrome 2 Categories Codeforces Manthan, Codefest 16 5
731 Wet Shark and Blocks Categories Codeforces Codeforces Round #341 (Div. 2) 5
732 Anfisa the Monkey Categories Codeforces School Team Contest #2 (Winter Computer School 2010/11) 6
733 Maximum Sub-sequence Product Categories Live Archive 1996 Europe - Southeastern 6
734 Road Improvement Categories Codeforces Codeforces Round #302 (Div. 1) 6
735 Anya and Cubes Categories Codeforces Codeforces Round #297 (Div. 2) 6
736 Greg and Friends Categories Codeforces Codeforces Round #179 (Div. 1) & Codeforces Round #179 (Div. 2) 6
737 Fish Categories Codeforces Codeforces Beta Round #16 (Div. 2 Only) 6
738 Beaver Categories Codeforces Codeforces Beta Round #71 6
739 Minesweeper 1D Categories Codeforces Codeforces Round #237 (Div. 2) 6
740 New Year Domino Categories Codeforces Good Bye 2014 6
741 Common Palindrome Categories UVA 6
742 Special Matrices Categories Codeforces Codeforces Round #277.5 (Div. 2) 6
743 Least Common Multiple Categories Live Archive 2014 South Pacific 6
744 Maxim and Restaurant Categories Codeforces Codeforces Round #160 (Div. 1) & Codeforces Round #160 (Div. 2) 6
745 Paint templates Categories SPOJ 6
746 Vladik and cards Categories Codeforces Codeforces Round #384 (Div. 2) 6
747 Lucky Subsequence Categories Codeforces Codeforces Round #104 (Div. 1) & Codeforces Round #104 (Div. 2) 6
748 Wonderful Randomized Sum Categories Codeforces Codeforces Beta Round #33 (Codeforces format) 6
749 Dynamic Problem Scoring Categories Codeforces VK Cup 2017 - Round 3 6
750 Decoding Genome Categories Codeforces Codeforces Round #137 (Div. 2) 6
751 Stripe 2 Categories Codeforces Codeforces Alpha Round #21 (Codeforces format) 6
752 Karen and Supermarket Categories Codeforces Codeforces Round #419 (Div. 1) & Codeforces Round #419 (Div. 2) 6
753 Looking for Order Categories Codeforces Codeforces Beta Round #8 6
754 Snakes Categories A2 Online Judge 6
755 Jzzhu and Numbers Categories Codeforces Codeforces Round #257 (Div. 1) 6
756 Alternative Solution Categories Timus 6
757 Sort that Queue Categories Live Archive 2005 Africa/Middle East - Arab and North Africa 6
758 Array GCD Categories Codeforces AIM Tech Round (Div. 1) & AIM Tech Round (Div. 2) 6
759 Pluses everywhere Categories Codeforces Codeforces Round #295 (Div. 2) & Codeforces Round #295 (Div. 1) 6
760 EKG Categories Codeforces ABBYY Cup 3.0 6
761 Okabe and El Psy Kongroo Categories Codeforces Codeforces Round #420 (Div. 2) 6
762 Plants vs. Zombies HD SP Categories UVA 6
763 Wizards and Huge Prize Categories Codeforces Codeforces Round #114 (Div. 1) & Codeforces Round #114 (Div. 2) 6
764 ACM Diagnostics Categories Timus 6
765 LIS of Sequence Categories Codeforces Codeforces Round #277 (Div. 2) 6
766 Substitutes in Number Categories Codeforces Codeforces Round #265 (Div. 1) & Codeforces Round #265 (Div. 2) 6
767 Palindrome Categories Codeforces MemSQL start[c]up Round 2 - online version 6
768 Decimation Categories Timus 6
769 Trains and Statistic Categories Codeforces Codeforces Round #353 (Div. 2) 6
770 Permutation Sum Categories Codeforces Codeforces Round #175 (Div. 2) 6
771 Train Categories Codeforces Codeforces Beta Round #68 6
772 Phone Talks Categories Codeforces VK Cup 2012 Qualification Round 1 6
773 Jill Rides Again Categories Live Archive 1997 World Finals - San Jose 6
774 Watching Fireworks is Fun Categories Codeforces Codeforces Round #219 (Div. 1) & Codeforces Round #219 (Div. 2) 6
775 Pig and Palindromes Categories Codeforces Codeforces Round #316 (Div. 2) 6
776 Partial Teacher Categories Codeforces Manthan 2011 6
777 Mahmoud and a xor trip Categories Codeforces Codeforces Round #396 (Div. 2) 6
778 Segment Tree Categories SPOJ 6
779 Array Queries Categories Codeforces Educational Codeforces Round 19 6
780 Animals Categories Codeforces Codeforces Beta Round #35 (Div. 2) 6
781 Sonya and Problem Wihtout a Legend Categories Codeforces Codeforces Round #371 (Div. 1) & Codeforces Round #371 (Div. 2) 6
782 Martian Army Categories Timus 6
783 Salary for Robots Categories Timus 6
784 MagicNaming Categories TopCoder SRM 526.5 - Div2 hard] (14762) 6
785 Incrementing The Integer Categories SPOJ 6
786 Beautiful numbers Categories Codeforces Codeforces Beta Round #51 6
787 Yet Another Number Game Categories Codeforces Codeforces Round #173 (Div. 2) 6
788 Little Elephant and Elections Categories Codeforces Codeforces Round #157 (Div. 1) & Codeforces Round #157 (Div. 2) 6
789 Unusual Sequences Categories Codeforces Codeforces Round #450 (Div. 2) 6
790 The Top-Code Categories SPOJ 6
791 Table Compression Categories Codeforces Codeforces Round #345 (Div. 1) & Codeforces Round #345 (Div. 2) 6
792 Game --- Mouse and Cheese Categories UVA 6
793 Fence Categories Codeforces Codeforces Round #145 (Div. 2, ACM-ICPC Rules) & Codeforces Round #145 (Div. 1, ACM-ICPC Rules) 6
794 Demogorgon Categories URI 6
795 Buses Categories Codeforces Codeforces Beta Round #79 (Div. 1 Only) & Codeforces Beta Round #79 (Div. 2 Only) 6
796 Longest Common Subsequence Categories SPOJ 6
797 Subsequences Categories Codeforces Testing Round #12 6
798 Ilya and Roads Categories Codeforces Codeforces Round #186 (Div. 2) 6
799 Solitaire Categories Codeforces Codeforces Round #130 (Div. 2) 6
800 Interesting Game Categories Codeforces Codeforces Beta Round #73 (Div. 1 Only) & Codeforces Beta Round #73 (Div. 2 Only) 6
801 Hamiltonian Spanning Tree Categories Codeforces Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) 6
802 Dreamoon and Strings Categories Codeforces Codeforces Round #272 (Div. 2) & Codeforces Round #272 (Div. 1) 6
803 Memory and Scores Categories Codeforces Codeforces Round #370 (Div. 2) 6
804 Random Task Categories Codeforces Codeforces Round #247 (Div. 2) 6
805 The Maths Lecture Categories Codeforces Codeforces Round #287 (Div. 2) 6
806 Numbers Categories Codeforces Codeforces Round #131 (Div. 1) & Codeforces Round #131 (Div. 2) 6
807 Save the Python Programmers! Categories Live Archive 2010 North America - Pacific Northwest 6
808 Mystic Craft Categories SPOJ 6
809 File List Categories Codeforces VK Cup 2012 Round 3 (Unofficial Div. 2 Edition) 6
810 Brainwashing Device Categories Timus 6
811 Fedor and Essay Categories Codeforces Codeforces Round #267 (Div. 2) 6
812 Two Strings Categories Codeforces Codeforces Round #138 (Div. 1) & Codeforces Round #138 (Div. 2) 6
813 Table Categories Codeforces Codeforces Round #144 (Div. 1) & Codeforces Round #144 (Div. 2) 6
814 Shooting Gallery Categories Codeforces Codeforces Beta Round #30 (Codeforces format) 6
815 Magic Numbers Categories Codeforces Educational Codeforces Round 8 6
816 Work Group Categories Codeforces VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) 6
817 Let's Play Osu! Categories Codeforces Codeforces Round #146 (Div. 1) & Codeforces Round #146 (Div. 2) 6
818 Let's Go Rolling! Categories Codeforces School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) 6
819 Two out of Three Categories Codeforces Yandex.Algorithm 2011 Qualification 2 6
820 Lizards and Basements 2 Categories Codeforces Codeforces Beta Round #6 (Div. 2 Only) 6
821 Sereja and Subsequences Categories Codeforces Codeforces Round #187 (Div. 1) & Codeforces Round #187 (Div. 2) 6
822 Leha and another game about graph Categories Codeforces Codeforces Round #429 (Div. 1) & Codeforces Round #429 (Div. 2) 6
823 Police Station Categories Codeforces Codeforces Round #130 (Div. 2) 6
824 Cinema Cashier Categories Codeforces Codeforces Beta Round #10 6
825 Coloring Brackets Categories Codeforces Codeforces Round #106 (Div. 2) 6
826 Duff in Beach Categories Codeforces Codeforces Round #326 (Div. 1) & Codeforces Round #326 (Div. 2) 6
827 Towers Categories Codeforces Codeforces Round #142 (Div. 1) 6
828 Oil Skimming Categories A2 Online Judge 6
829 Summing Slopes Categories SPOJ 6
830 Eleven Categories UVA 6
831 Kindergarten Categories Codeforces Codeforces Round #276 (Div. 1) 6
832 Demiurges Play Again Categories Codeforces Codeforces Round #300 6
833 Palindromes Categories Codeforces Codeforces Beta Round #98 (Div. 2) 6
834 Ciel and Gondolas Categories Codeforces Codeforces Round #190 (Div. 1) 6
835 Group Projects Categories Codeforces 8VC Venture Cup 2016 - Elimination Round 6
836 ???? ?? ?????? - 2 (round version) Categories Codeforces VK Cup 2015 - Round 1 6
837 Cunning Gena Categories Codeforces RCC 2014 Warmup (Div. 2) & RCC 2014 Warmup (Div. 1) 6
838 Relay Race Categories Codeforces Codeforces Round #131 (Div. 1) & Codeforces Round #131 (Div. 2) 6
839 AlgoRace Categories Codeforces Codeforces Round #119 (Div. 1) & Codeforces Round #119 (Div. 2) 6
840 Beaver Game Categories Codeforces Codeforces Beta Round #70 (Div. 2) 6
841 New Year Letter Categories Codeforces Good Bye 2013 6
842 Insertion Sort Categories Codeforces Codeforces Round #212 (Div. 2) 6
843 Money for Nothing Categories Live Archive 2017 World Finals - Rapid City 6
844 Cipher Categories Codeforces Codeforces Round #110 (Div. 1) & Codeforces Round #110 (Div. 2) 6
845 Little Elephant and LCM Categories Codeforces Codeforces Round #157 (Div. 1) & Codeforces Round #157 (Div. 2) 6
846 Match & Catch Categories Codeforces Codeforces Round #244 (Div. 2) 6
847 Bracket Sequence Categories SPOJ 6
848 Eating High Categories Timus 6
849 Vanya and Brackets Categories Codeforces Codeforces Round #308 (Div. 2) 6
850 LCIS Categories Codeforces Codeforces Beta Round #10 6
851 Arthur and Brackets Categories Codeforces Codeforces Round #288 (Div. 2) 6
852 Vladik and chat Categories Codeforces Codeforces Round #390 (Div. 2) 7
853 First Digit Law Categories Codeforces Codeforces Beta Round #50 7
854 Colored Tiles Categories UVA 7
855 FibonacciKnapsack Categories TopCoder SRM 352 - Div1 medium] (10709) 7
856 Petya and Spiders Categories Codeforces Codeforces Beta Round #85 (Div. 1 Only) & Codeforces Beta Round #85 (Div. 2 Only) 7
857 Free Market Categories Codeforces Codeforces Round #213 (Div. 1) & Codeforces Round #213 (Div. 2) 7
858 Blood Cousins Return Categories Codeforces Codeforces Round #151 (Div. 2) 7
859 Lost in Space Categories Timus 7
860 Join Categories Timus 7
861 Cats Transport Categories Codeforces Codeforces Round #185 (Div. 1) & Codeforces Round #185 (Div. 2) 7
862 Intellectual Inquiry Categories Codeforces CROC 2016 - Elimination Round 7
863 Devu and Birthday Celebration Categories Codeforces Codeforces Round #251 (Div. 2) 7
864 Game with Powers Categories Codeforces Codeforces Round #188 (Div. 1) 7
865 Painting The Wall Categories Codeforces Codeforces Round #233 (Div. 1) & Codeforces Round #233 (Div. 2) 7
866 Lucky Country Categories Codeforces Codeforces Beta Round #77 (Div. 1 Only) 7
867 Pictures with Kittens (hard version) Categories Codeforces Codeforces Round #521 (Div. 3) 7
868 Lannister Army Categories SPOJ 7
869 LionAge II Categories Codeforces Codeforces Beta Round #66 7
870 Duckindromes Categories UVA 7
871 Education Reform Categories Codeforces Codeforces Beta Round #90 7
872 Longest Run on a Snowboard Categories Live Archive 2006 Asia - Coimbatore 7
873 World Eater Brothers Categories Codeforces Codeforces Round #148 (Div. 1) & Codeforces Round #148 (Div. 2) 7
874 Rent your airplane and make money Categories UVA 7
875 Brainfuck Categories Timus 7
876 Bulbo Categories Codeforces Bubble Cup 8 - Finals [Online Mirror] 7
877 Wooden Fence Categories Codeforces Codeforces Round #117 (Div. 2) 7
878 Lunar Code Categories Timus 7
879 Kleofáš and the n-thlon Categories Codeforces Codeforces Round #333 (Div. 1) & Codeforces Round #333 (Div. 2) 7
880 Top Secret Task Categories Codeforces Codeforces Round #327 (Div. 1) 7
881 Dot Categories Codeforces Codeforces Beta Round #63 (Div. 2) 7
882 Yet Another Assignment Problem Categories SPOJ 7
883 Phone Number Categories Codeforces School Team Contest #2 (Winter Computer School 2010/11) 7
884 Transmitting Levels Categories Codeforces ZeptoLab Code Rush 2015 7
885 Table Tennis Categories UVA 7
886 Word Cut Categories Codeforces Croc Champ 2012 - Round 2 7
887 Lucky Number Representation Categories Codeforces Codeforces Round #206 (Div. 1) 7
888 Maxim and Matrix Categories Codeforces Codeforces Round #160 (Div. 1) & Codeforces Round #160 (Div. 2) 7
889 Treeland Tour Categories Codeforces Codeforces Round #279 (Div. 2) 7
890 Divisor Tree Categories Codeforces Codeforces Round #196 (Div. 2) & Codeforces Round #196 (Div. 1) 7
891 Martian Plates Categories Timus 7
892 Fence Divercity Categories Codeforces Codeforces Round #346 (Div. 2) 7
893 Famil Door and Roads Categories Codeforces Codeforces Round #343 (Div. 2) 7
894 Plus and xor Categories Codeforces All-Ukrainian School Olympiad in Informatics 7
895 Catch Sheep Categories SPOJ 7
896 Guess the Tree Categories Codeforces Codeforces Round #245 (Div. 1) & Codeforces Round #245 (Div. 2) 7
897 Beavermuncher-0xFF Categories Codeforces Codeforces Beta Round #69 (Div. 1 Only) & Codeforces Beta Round #69 (Div. 2 Only) 7
898 Quest Categories Codeforces VK Cup 2015 - Round 3 (unofficial online mirror, Div. 1 only) 7
899 Special Grid Categories Codeforces Codeforces Round #249 (Div. 2) 7
900 President's Path Categories Codeforces Codeforces Round #241 (Div. 2) 7
901 Name That Tune Categories Codeforces Codeforces Round #284 (Div. 1) & Codeforces Round #284 (Div. 2) 7
902 Captains Mode Categories Codeforces Codeforces Round #222 (Div. 1) & Codeforces Round #222 (Div. 2) 7
903 Spiral Maximum Categories Codeforces Croc Champ 2012 - Round 1 7
904 Sweets Problem Categories CodeChef 7
905 Genetic Engineering Categories Codeforces Rockethon 2014 7
906 Comb Categories Codeforces School Personal Contest #2 (Winter Computer School 2010/11) - Codeforces Beta Round #43 (ACM-ICPC Rules) 7
907 Cactus Categories Codeforces Codeforces Round #143 (Div. 2) 7
908 Fafa and Ancient Mathematics Categories Codeforces Codeforces Round #465 (Div. 2) 7
909 Sereja and Two Sequences Categories Codeforces Codeforces Round #243 (Div. 1) & Codeforces Round #243 (Div. 2) 7
910 Yaroslav and Two Strings Categories Codeforces Codeforces Round #179 (Div. 2) 7
911 Seller Bob Categories Codeforces Codeforces Beta Round #18 (Div. 2 Only) 7
912 Component Testing Categories Live Archive 2012 North America - Mid-Atlantic USA & North America - Southern California & North America - Southeast USA 7
913 Yet Another Answer Categories Timus 7
914 Product Sum Categories Codeforces Codeforces Round #344 (Div. 2) 7
915 Right Triangles Categories Codeforces Codeforces Testing Round #1 7
916 TheProgrammingContestDivOne Categories TopCoder SRM 502 - Div1 medium] (14431) 7
917 Little Artem and Random Variable Categories Codeforces VK Cup 2016 - Round 2 7
918 Lucky Numbers Categories Codeforces Codeforces Beta Round #77 (Div. 1 Only) 7
919 Camels Categories Codeforces Codeforces Beta Round #14 (Div. 2) 7
920 Traffic Jams in the Land Categories Codeforces Codeforces Round #284 (Div. 1) 7
921 Fragile Bridges Categories Codeforces Codeforces Round #127 (Div. 1) & Codeforces Round #127 (Div. 2) 7
922 Levko and Strings Categories Codeforces Codeforces Round #210 (Div. 1) & Codeforces Round #210 (Div. 2) 7
923 Changing a String Categories Codeforces Codeforces Beta Round #52 (Div. 2) 7
924 Valera and Fools Categories Codeforces Codeforces Round #216 (Div. 2) 7
925 Ralph and Mushrooms Categories Codeforces Codeforces Round #447 (Div. 2) 7
926 Black and White Tree Categories Codeforces Codeforces Round #158 (Div. 2) 7
927 Two Longest Paths Categories UVA 7
928 Identify the Number Categories A2 Online Judge 7
929 On the Bench Categories Codeforces Codeforces Round #429 (Div. 1) & Codeforces Round #429 (Div. 2) 7
930 Zip-line Categories Codeforces Codeforces Round #345 (Div. 1) 7
931 Segment Sum Categories Codeforces Educational Codeforces Round 53 (Rated for Div. 2) 7
932 Big Maximum Sum Categories Codeforces Codeforces Beta Round #67 (Div. 2) 7
933 Thief in a Shop Categories Codeforces Educational Codeforces Round 9 7
934 Optical Experiment Categories Codeforces Manthan 2011 7
935 Merry-go-round Categories Timus 7
936 Inna and Sequence Categories Codeforces Codeforces Round #220 (Div. 2) 7
937 Binary Table Categories Codeforces CROC 2016 - Final Round [Private, For Onsite Finalists Only] 7
938 Ann and Half-Palindrome Categories Codeforces Codeforces Round #311 (Div. 2) 7
939 Nanami's Digital Board Categories Codeforces Codeforces Round #248 (Div. 2) & Codeforces Round #248 (Div. 1) 7
940 Pawn Categories Codeforces Codeforces Beta Round #40 (Div. 2) 7
941 Remembering Strings Categories Codeforces Codeforces Round #302 (Div. 1) & Codeforces Round #302 (Div. 2) 7
942 Ant Man Categories Codeforces Codeforces Round #366 (Div. 1) & Codeforces Round #366 (Div. 2) 7
943 Archer's Travel Categories Timus 7
944 Playing War Categories UVA 7
945 Darth Vader and Tree Categories Codeforces Codeforces Round #291 (Div. 2) 7
946 Beautiful Pairs of Numbers Categories Codeforces Codeforces Round #236 (Div. 1) 7
947 Coin Troubles Categories Codeforces Codeforces Round #174 (Div. 1) & Codeforces Round #174 (Div. 2) 7
948 Hiking Categories Codeforces Codeforces Round #277.5 (Div. 2) 7
949 Number Transformation Categories Codeforces Codeforces Round #153 (Div. 1) & Codeforces Round #153 (Div. 2) 7
950 Maximum Questions Categories Codeforces Codeforces Round #450 (Div. 2) 7
951 TV Game Categories Codeforces Codeforces Beta Round #31 (Div. 2, Codeforces format) 7
952 Game Categories Codeforces Codeforces Beta Round #46 (Div. 2) 7
953 Axis Walking Categories Codeforces Codeforces Round #191 (Div. 2) 7
954 Hongcow Buys a Deck of Cards Categories Codeforces Codeforces Round #385 (Div. 1) & Codeforces Round #385 (Div. 2) 7
955 Cubes Categories Codeforces Codeforces Round #116 (Div. 2, ACM-ICPC Rules) 7
956 Birthday Categories Codeforces Codeforces Round #282 (Div. 1) 8
957 The Minimum Number of Variables Categories Codeforces Codeforces Round #171 (Div. 2) 8
958 Mishka and Divisors Categories Codeforces Codeforces Round #365 (Div. 2) 8
959 Gifts Categories Codeforces Codeforces Round #142 (Div. 1) 8
960 Biathlon Track Categories Codeforces Codeforces Round #242 (Div. 2) 8
961 Find a car Categories Codeforces Codeforces Round #415 (Div. 1) & Codeforces Round #415 (Div. 2) 8
962 Drazil and Morning Exercise Categories Codeforces Codeforces Round #292 (Div. 1) 8
963 Vanya and Balloons Categories Codeforces Codeforces Round #355 (Div. 2) 8
964 Cows and Cool Sequences Categories Codeforces Codeforces Round #174 (Div. 1) 8
965 Frequent Flyer Card Categories Timus 8
966 Petya and Post Categories Codeforces Codeforces Beta Round #61 (Div. 2) 8
967 Bombing Categories Codeforces Codeforces Beta Round #47 8
968 Yekaterinburg Subway Categories Timus 8
969 The Child and Polygon Categories Codeforces Codeforces Round #250 (Div. 2) & Codeforces Round #250 (Div. 1) 8
970 Xenia and Dominoes Categories Codeforces Codeforces Round #199 (Div. 2) 8
971 Tourist Categories Codeforces All-Ukrainian School Olympiad in Informatics 8
972 Inventory Categories UVA 8
973 One-Based Arithmetic Categories Codeforces Testing Round #10 8
974 The Chocolate Spree Categories Codeforces Manthan, Codefest 16 8
975 Diverse Substrings Categories Codeforces Testing Round #9 8
976 Parcels Categories Codeforces Codeforces Round #274 (Div. 1) 8
977 Lucky Arrays Categories Codeforces Codeforces Round #156 (Div. 1) 8
978 Sereja and Intervals Categories Codeforces Codeforces Round #215 (Div. 1) 8
979 Jeff and Brackets Categories Codeforces Codeforces Round #204 (Div. 1) & Codeforces Round #204 (Div. 2) 8
980 Bath Queue Categories Codeforces Codeforces Beta Round #28 (Codeforces format) 8
981 Preorder Test Categories Codeforces 8VC Venture Cup 2016 - Final Round 8
982 Triangles Categories Codeforces Codeforces Beta Round #13 8
983 Periodical Numbers Categories Codeforces Codeforces Round #132 (Div. 2) 8
984 Greg and Caves Categories Codeforces Codeforces Round #179 (Div. 1) 8
985 Balance Categories Codeforces Codeforces Beta Round #17 8
986 Michael and Charging Stations Categories Codeforces Codeforces Round #433 (Div. 1, based on Olympiad of Metropolises) 8
987 Password Categories Codeforces Codeforces Beta Round #71 8
988 Genetic engineering Categories Codeforces Yandex.Algorithm 2011 Round 2 8
989 Gosha is hunting Categories Codeforces Codeforces Round #381 (Div. 1) 8
990 Beads Categories Codeforces Codeforces Beta Round #8 8
991 Flights for Regular Customers Categories Codeforces Codeforces Round #319 (Div. 1) 8
992 Turtles Categories Codeforces Codeforces Round #202 (Div. 1) 8
993 Progress Monitoring Categories Codeforces Codeforces Round #289 (Div. 2, ACM ICPC Rules) 8
994 IT Restaurants Categories Codeforces VK Cup 2012 Finals (unofficial online-version) 8
995 Inversions problem Categories Codeforces Rockethon 2015 8
996 Game with Strings Categories Codeforces Codeforces Round #275 (Div. 1) & Codeforces Round #275 (Div. 2) 8
997 World of Darkraft - 2 Categories Codeforces Codeforces Round #265 (Div. 1) 8
998 Antichain Categories Codeforces Codeforces Round #205 (Div. 2) 8
999 An unavoidable detour for home Categories Codeforces Codeforces Round #418 (Div. 2) 8
1000 New Year Garland Categories Codeforces Codeforces Round #100 8
1001 Don't fear, DravDe is kind Categories Codeforces Codeforces Beta Round #28 (Codeforces format) 8
1002 Brackets Categories Codeforces Codeforces Beta Round #92 (Div. 1 Only) & Codeforces Beta Round #92 (Div. 2 Only) 8
1003 Ostap and Tree Categories Codeforces Codeforces Round #382 (Div. 2) & Codeforces Round #382 (Div. 1) 8
1004 Vowels Categories Codeforces Codeforces Round #225 (Div. 1) 8
1005 Positions in Permutations Categories Codeforces Codeforces Round #175 (Div. 2) 8
1006 Bags and Coins Categories Codeforces Codeforces Round #207 (Div. 1) 8
1007 Maxim and Increasing Subsequence Categories Codeforces Codeforces Round #160 (Div. 1) 8
1008 Constants in the language of Shakespeare Categories Codeforces Codeforces Beta Round #96 (Div. 1) 8
1009 What Has Dirichlet Got to Do with That? Categories Codeforces School Team Contest #1 (Winter Computer School 2010/11) 8
1010 Fractal Detector Categories Codeforces Codeforces Round #141 (Div. 2) 8
1011 Tree Categories Codeforces Codeforces Beta Round #23 8
1012 Somali Pirates Categories Timus 8
1013 Shaass the Great Categories Codeforces Codeforces Round #178 (Div. 2) 8
1014 Painting Square Categories Codeforces Codeforces Round #181 (Div. 2) 8
1015 Little Elephant and Broken Sorting Categories Codeforces Codeforces Round #157 (Div. 1) 8
1016 e-Government Categories Codeforces VK Cup 2012 Round 2 8
1017 Zublicanes and Mumocrates Categories Codeforces Codeforces Round #322 (Div. 2) 8
1018 Mausoleum Categories Codeforces Codeforces Round #Pi (Div. 2) 8
1019 Two Melodies Categories Codeforces Educational Codeforces Round 22 8
1020 Clearing Up Categories Codeforces Codeforces Round #101 (Div. 2) 8
1021 Linear Kingdom Races Categories Codeforces Codeforces Beta Round #87 (Div. 1 Only) 8
1022 Sereja and Sets Categories Codeforces Codeforces Round #243 (Div. 1) 8
1023 Castle Categories Codeforces Codeforces Beta Round #79 (Div. 1 Only) 8
1024 Flag 2 Categories Codeforces Codeforces Beta Round #18 (Div. 2 Only) 8
1025 Beautiful Road Categories Codeforces Codeforces Beta Round #73 (Div. 1 Only) 8
1026 Name Categories Codeforces Codeforces Round #116 (Div. 2, ACM-ICPC Rules) 8
1027 Dead Ends Categories Codeforces Codeforces Beta Round #49 (Div. 2) 8
1028 Helping People Categories Codeforces Codeforces Round #282 (Div. 1) & Codeforces Round #282 (Div. 2) 8
1029 Broken robot Categories Codeforces Codeforces Beta Round #24 8
1030 LCS Again Categories Codeforces Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] & Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] 8
1031 Petya and Coloring Categories Codeforces Codeforces Beta Round #85 (Div. 1 Only) 8
1032 2048 Categories Codeforces Coder-Strike 2014 - Round 2 8
1033 Tower of Hanoi Categories Codeforces Codeforces Round #230 (Div. 1) & Codeforces Round #230 (Div. 2) 8
1034 Wilbur and Trees Categories Codeforces Codeforces Round #331 (Div. 2) 8
1035 Fibonacci army Categories Codeforces Unknown Language Round #2 8
1036 Scheme Categories Codeforces Codeforces Beta Round #22 (Div. 2 Only) 8
1037 Alex and Complicated Task Categories Codeforces Codeforces Round #267 (Div. 2) 8
1038 Polycarpus the Safecracker Categories Codeforces VK Cup 2012 Round 1 8
1039 Sweets Game Categories Codeforces Codeforces Beta Round #59 (Div. 2) 8
1040 Help Caretaker Categories Codeforces Codeforces Round #102 (Div. 1) & Codeforces Round #102 (Div. 2) 8
1041 Common ancestor Categories Codeforces Codeforces Beta Round #46 (Div. 2) 8
1042 Number Challenge Categories Codeforces Codeforces Round #146 (Div. 1) 8
1043 Fibonacci Sums Categories Codeforces Codeforces Beta Round #93 (Div. 1 Only) 8
1044 Roads in Yusland Categories Codeforces Codeforces Round #352 (Div. 1) 8
1045 Numbers Categories Codeforces Codeforces Beta Round #72 (Div. 1 Only) 8
1046 Defining Macros Categories Codeforces Codeforces Beta Round #7 8
1047 Bear and Floodlight Categories Codeforces Codeforces Round #226 (Div. 2) 8
1048 Multicolored Marbles Categories Codeforces VK Cup 2012 Finals, Practice Session 8
1049 Widget Library Categories Codeforces Codeforces Beta Round #74 (Div. 1 Only) & Codeforces Beta Round #74 (Div. 2 Only) 8
1050 E-The dynamic programming problem2 Categories TJU 8
1051 Half-decay tree Categories Codeforces Codeforces Beta Round #62 9
1052 Liars and Serge Categories Codeforces Codeforces Round #156 (Div. 1) 9
1053 Mission Impassable Categories Codeforces Codeforces Round #107 (Div. 1) 9
1054 Subarray Cuts Categories Codeforces Rockethon 2015 9
1055 Polycarp's Masterpiece Categories Codeforces 2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) 9
1056 Bear and Cavalry Categories Codeforces Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 1) 9
1057 Rhombus Categories Codeforces Codeforces Round #161 (Div. 2) 9
1058 StackingBoxes Categories TopCoder SRM 261 - Div1 hard] (7995) 9
1059 Maze Categories Codeforces Codeforces Beta Round #92 (Div. 1 Only) 9
1060 Binary Key Categories Codeforces Codeforces Round #193 (Div. 2) 9
1061 World of Darkraft Categories Codeforces Codeforces Beta Round #99 (Div. 1) 9
1062 Quick Tortoise Categories Codeforces Codeforces Round #144 (Div. 1) 9
1063 Wilbur and Strings Categories Codeforces Codeforces Round #331 (Div. 2) 9
1064 Two Subsequences Categories Codeforces Codeforces Beta Round #72 (Div. 1 Only) 9
1065 Power Defence Categories Codeforces Codeforces Round #115 9
1066 Wall Bars Categories Codeforces Codeforces Round #164 (Div. 2) 9
1067 Transferring Pyramid Categories Codeforces Codeforces Round #206 (Div. 1) 9
1068 Research Rover Categories Codeforces Intel Code Challenge Elimination Round (Div. 1 + Div. 2, combined) 9
1069 Cowboys Categories Codeforces VK Cup 2012 Finals (unofficial online-version) 9
1070 Flags Categories Codeforces Codeforces Beta Round #76 (Div. 1 Only) 9
1071 Black Widow Categories Codeforces Codeforces Round #366 (Div. 1) & Codeforces Round #366 (Div. 2) 9
1072 Superhero's Job Categories Codeforces VK Cup 2015 - Round 3 (unofficial online mirror, Div. 1 only) 9
1073 Garden Categories Codeforces Codeforces Round #108 (Div. 2) 9
1074 Writing a Song Categories Codeforces Codeforces Beta Round #50 9
1075 Red and Black Tree Categories Codeforces Codeforces Round #221 (Div. 1) 9
1076 Gerald and Path Categories Codeforces Codeforces Round #313 (Div. 1) 9
1077 Representative Sampling Categories Codeforces ABBYY Cup 2.0 - Hard 9
1078 Tachibana Kanade's Tofu Categories Codeforces Codeforces Round #248 (Div. 2) & Codeforces Round #248 (Div. 1) 9
1079 Road to Home Categories Codeforces Codeforces Round #374 (Div. 2) 9
1080 And Yet Another Bracket Sequence Categories Codeforces VK Cup 2015 - Round 1 9
1081 Berland Federalization Categories Codeforces Testing Round #10 9
1082 New Year Shopping Categories Codeforces Good Bye 2014 9
1083 Ksenia and Combinatorics Categories Codeforces Codeforces Round #224 (Div. 2) 9
1084 Little Elephant and Retro Strings Categories Codeforces Codeforces Round #129 (Div. 1) 9
1085 Caterpillar Categories Codeforces Codeforces Beta Round #48 9
1086 A Museum Robbery Categories Codeforces Codeforces Round #333 (Div. 1) 9
1087 Meeting Her Categories Codeforces Codeforces Round #148 (Div. 1) 9
1088 The Great Julya Calendar Categories Codeforces ABBYY Cup 3.0 - Finals (online version) 9
1089 Moon Craters Categories Codeforces School Team Contest #1 (Winter Computer School 2010/11) 9
1090 Simplified Nonogram Categories Codeforces Codeforces Round #298 (Div. 2) 9
1091 Hitchhiking in the Baltic States Categories Codeforces Codeforces Round #415 (Div. 1) 9
1092 T-shirt Categories Codeforces Croc Champ 2012 - Final 9
1093 Transforming Sequence Categories Codeforces AIM Tech Round (Div. 1) 9
1094 PE Lesson Categories Codeforces ABBYY Cup 3.0 9
1095 Game with Points Categories Codeforces Testing Round #9 9
1096 Lostborn Categories Codeforces Codeforces Beta Round #76 (Div. 1 Only) 9
1097 Fibonacci String Subsequences Categories Codeforces Educational Codeforces Round 39 (Rated for Div. 2) 9
1098 Information Reform Categories Codeforces Codeforces Beta Round #64 9
1099 Four Divisors Categories Codeforces Educational Codeforces Round 12 9
1100 Maximum Waterfall Categories Codeforces Codeforces Round #165 (Div. 1) 9
1101 Piglet's Birthday Categories Codeforces Codeforces Round #152 (Div. 2) & Codeforces Round #152 (Div. 1) 9
1102 Rectangles and Square Categories Codeforces MemSQL start[c]up Round 2 - online version 9
1103 Unambiguous Arithmetic Expression Categories Codeforces Codeforces Beta Round #87 (Div. 1 Only) 9
1104 Valera and Number Categories Codeforces Codeforces Round #252 (Div. 2) 9
1105 Ciel and Flipboard Categories Codeforces Codeforces Round #190 (Div. 1) 9
1106 Formurosa Categories Codeforces Codeforces Round #134 (Div. 1) & Codeforces Round #134 (Div. 2) 9
1107 Pairs Categories Codeforces Yandex.Algorithm Open 2011 Qualification 1 9
1108 Largest Submatrix 3 Categories Codeforces Codeforces Round #239 (Div. 1) 9
1109 Hyper String Categories Codeforces Croc Champ 2012 - Round 2 9
1110 Hanger Categories Codeforces Codeforces Beta Round #68 9
1111 Pasha and Pipe Categories Codeforces Codeforces Round #293 (Div. 2) 9
1112 Sequence of Balls Categories Codeforces Manthan 2011 9
1113 Dormitory Categories Codeforces Codeforces Round #155 (Div. 2) 9
1114 Lesson Timetable Categories Codeforces Codeforces Beta Round #37 9
1115 Google Code Jam Categories Codeforces Codeforces Round #170 (Div. 1) 9
1116 Arrangement Categories Codeforces Codeforces Beta Round #83 (Div. 1 Only) & Codeforces Beta Round #83 (Div. 2 Only) 9
1117 Random Function and Tree Categories Codeforces Codeforces Round #275 (Div. 1) 9
1118 Little Pony and Elements of Harmony Categories Codeforces Codeforces Round #259 (Div. 1) 9
1119 Pilgrims Categories Codeforces Codeforces Round #202 (Div. 1) 9
1120 Tavas in Kansas Categories Codeforces Codeforces Round #299 (Div. 1) 9
1121 The Great Julya Calendar Categories Codeforces ABBYY Cup 3.0 - Finals (online version) 9
1122 Domino Carpet Categories Codeforces Codeforces Beta Round #69 (Div. 1 Only) 9
1123 Candy Store Categories Live Archive 2012 North America - Southeast USA 9
1124 Pudding Monsters Categories Codeforces Zepto Code Rush 2014 9
1125 PE Lesson Categories Codeforces ABBYY Cup 3.0 9
1126 Fox And Travelling Categories Codeforces Codeforces Round #290 (Div. 1) 9
1127 Singer House Categories Codeforces Codeforces Round #424 (Div. 1, rated, based on VK Cup Finals) 9
1128 Strange Calculation and Cats Categories Codeforces Codeforces Round #329 (Div. 2) 9
1129 Colorful Stones Categories Codeforces Codeforces Round #162 (Div. 1) 9
1130 DFS Categories Codeforces Lyft Level 5 Challenge 2018 - Final Round 9
1131 Nuclear Fusion Categories Codeforces Codeforces Beta Round #65 (Div. 2) 9
1132 Dima and Figure Categories Codeforces Codeforces Round #167 (Div. 1) 9
1133 Game with Strings Categories Codeforces Codeforces Round #206 (Div. 1) & Codeforces Round #206 (Div. 2) 9
1134 Donkey and Stars Categories Codeforces Codeforces Round #152 (Div. 1) 9
1135 Ivan the Fool VS Gorynych the Dragon Categories Codeforces School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round #45 (ACM-ICPC Rules) 9
1136 Polo the Penguin and Lucky Numbers Categories Codeforces Codeforces Round #177 (Div. 1) 9
1137 Xenia and String Problem Categories Codeforces Codeforces Round #207 (Div. 1) 9
1138 Shoe Store Categories Codeforces Codeforces Round #113 (Div. 2) 9
1139 Maxim and Calculator Categories Codeforces Codeforces Round #160 (Div. 1) 9
1140 Subarray Cuts Categories Codeforces Rockethon 2015 9
1141 Dreamoon and Binary Categories Codeforces Codeforces Round #272 (Div. 1) 9
1142 Crime Management Categories Codeforces Codeforces Beta Round #83 (Div. 1 Only) 9
1143 PE Lesson Categories Codeforces ABBYY Cup 3.0 9
1144 Horse Races Categories Codeforces Codeforces Beta Round #77 (Div. 1 Only) & Codeforces Beta Round #77 (Div. 2 Only) 9
1145 Triangles Categories Codeforces Codeforces Beta Round #15 9
1146 Yaroslav and Arrangements Categories Codeforces Codeforces Round #182 (Div. 1) 9
1147 Stairs and Lines Categories Codeforces Codeforces Round #284 (Div. 1) 9
1148 Brand New Problem Categories Codeforces Codeforces Round #127 (Div. 1) 9
1149 Plane of Tanks: Duel Categories Codeforces Codeforces Round #115 9
1150 Roadside Trees Categories Codeforces Codeforces Round #162 (Div. 1) 9
1151 Steaks on Board Categories Timus 9
1152 Journey Categories Codeforces Codeforces Beta Round #53 9
1153 Dima and Game Categories Codeforces Codeforces Round #167 (Div. 1) 9
1154 Maximum Longest Increasing Subsequence Categories CodeChef 9
1155 Smart Boy Categories Codeforces School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) 9
1156 Little Elephant and Triangle Categories Codeforces Codeforces Round #136 (Div. 1) 9
1157 Candies and Stones Categories Codeforces Codeforces Beta Round #79 (Div. 1 Only) 9
1158 Faryuks Categories Timus 9
1159 Sandy and Nuts Categories Codeforces Codeforces Round #332 (Div. 2) 9
1160 Sereja and Squares Categories Codeforces Codeforces Round #187 (Div. 1) 9
1161 To Hack or not to Hack Categories Codeforces CROC 2016 - Final Round [Private, For Onsite Finalists Only] 10
1162 Dynamic Programming Categories A2 Online Judge 10
1163 Vasily the Bear and Painting Square Categories Codeforces Codeforces Round #195 (Div. 2) 10
1164 Random Ranking Categories Codeforces Codeforces Round #183 (Div. 1) 10
1165 New Year Cactus Categories Codeforces Good Bye 2013 10
1166 Mod Mod Mod Categories Codeforces Codeforces Round #445 (Div. 1, based on Technocup 2018 Elimination Round 3) 10
1167 Mrs. Hudson's Pancakes Categories Codeforces Codeforces Round #110 (Div. 1) 10
1168 Expression Categories Codeforces Codeforces Beta Round #54 (Div. 2) 10
1169 Longest Increasing Subsequence Categories Codeforces Codeforces Round #315 (Div. 1) 10
1170 Permanent Categories Codeforces Codeforces Round #268 (Div. 1) 10
1171 Tree and Table Categories Codeforces Codeforces Round #153 (Div. 1) 10
1172 Forward, march! Categories Codeforces Codeforces Beta Round #11 10
1173 Number of Binominal Coefficients Categories Codeforces Codeforces Round #323 (Div. 1) 10
1174 The Great Marathon Categories Codeforces School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) 10
1175 Subsequences Return Categories Codeforces Codeforces Round #283 (Div. 1) 10
1176 Sequence Transformation Categories Codeforces Codeforces Round #172 (Div. 1) 10
1177 Hellish Constraints Categories Codeforces Codeforces Beta Round #99 (Div. 1) 10
1178 Colored Jenga Categories Codeforces Codeforces Round #242 (Div. 2) 10
1179 Help Shrek and Donkey Categories Codeforces Codeforces Beta Round #78 (Div. 1 Only) 10
1180 Boolean Function Categories Codeforces Codeforces Round #323 (Div. 1) 10
1181 Kyoya and Train Categories Codeforces Codeforces Round #309 (Div. 1) 10
1182 Jzzhu and Squares Categories Codeforces Codeforces Round #257 (Div. 1) 10
1183 Days of Floral Colours Categories Codeforces Codeforces Round #431 (Div. 1) 10
1184 Kojiro and Furrari Categories Codeforces Codeforces Round #322 (Div. 2) 10
1185 School Categories Codeforces School Team Contest #3 (Winter Computer School 2010/11) 10
1186 Sloth Categories Codeforces Codeforces Round #446 (Div. 1) 10
1187 Dynamic Shortest Path Categories Codeforces AIM Tech Round 4 (Div. 1) 10
1188 Digits of Number Pi Categories Codeforces Codeforces Round #325 (Div. 1) 10
1189 Cubes Categories Codeforces Codeforces Round #150 (Div. 1) 10
1190 Clever Fat Rat Categories Codeforces Codeforces Round #118 (Div. 1) & Codeforces Round #118 (Div. 2) 10
1191 Stock Trading Categories Codeforces Rockethon 2014 10
1192 Simba on the Circle Categories Codeforces Educational Codeforces Round 4 10
1193 Inversions problem Categories Codeforces Rockethon 2015 10
1194 Cookie Clicker Categories Codeforces Codeforces Round #222 (Div. 1) 10
1195 Caramel Clouds Categories Codeforces Codeforces Round #426 (Div. 1) 10
1196 Longest Subsequence Categories Live Archive 2004 Asia - Manila 10
1197 Geometry Categories Live Archive 2005 Asia - Kolkata 10
1198 Counting Skyscrapers Categories Codeforces MemSQL start[c]up Round 2 - online version 10
1199 Galaxy Union Categories Codeforces School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round #45 (ACM-ICPC Rules) 10
1200 Shake It! Categories Codeforces Codeforces Round #431 (Div. 1) 10
1201 World Evil Categories Codeforces Codeforces Beta Round #58 10
1202 Combining Slimes Categories Codeforces Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) 10
1203 Number Of ways Categories SPOJ 10
1204 An easy problem about trees Categories Codeforces MemSQL Start[c]UP 2.0 - Round 2 10
1205 Deja Vu Categories Codeforces ABBYY Cup 3.0 - Finals (online version) 10
1206 Banners Categories Codeforces Zepto Code Rush 2014 10
1207 Buy One, Get One Free Categories Codeforces MemSQL start[c]up Round 2 - online version 10
1208 Doe Graphs Categories Codeforces Codeforces Round #144 (Div. 1) & Codeforces Round #144 (Div. 2) 10
1209 #dynamic-programming&nbsp;(168)</span> Categories SPOJ 10
1210 Puzzle Lover Categories Codeforces Codeforces Round #339 (Div. 1) 10
1211 Numbers on the blackboard Categories Codeforces Codeforces Round #443 (Div. 1) 10
1212 Summer Reading Categories Codeforces Codeforces Round #217 (Div. 2) 10
1213 Dynamic Assignment Problem Categories SPOJ 10
1214 Selling Numbers Categories Codeforces Codeforces Round #402 (Div. 1) 10
1215 Ada and Zoo Categories SPOJ 10
1216 Mutation Categories Codeforces All-Ukrainian School Olympiad in Informatics 10