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