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