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