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