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Dynamic Programming problems
Problem Name Online Judge Year Contest Difficulty Level
1 Easy Longest Increasing Subsequence Categories SPOJ 1
2 Homer Simpson Categories UVA 1
3 Tri graphs Categories SPOJ 1
4 Non-Decreasing Digits Categories SPOJ 1
5 Longest Palindrome Categories UVA 1
6 Tiling Up Blocks Categories Live Archive 2003 Asia - Kaohsiung 1
7 Optimal Array Multiplication Sequence Categories UVA 1
8 Sum of Digits Categories SPOJ 1
9 Exponentiation Categories PKU 1
10 Tower of Babylon Categories SPOJ 1
11 Feynman Categories SPOJ 1
12 Maximum Sum Categories Timus 1
13 Fibonacci Words Categories Live Archive 2012 World Finals - Warsaw 1
14 Grandpa's Walk Categories Live Archive 2012 Asia - Jakarta 1
15 Summing to a Square Prime Categories SPOJ 1
16 Help the soldier Categories SPOJ 1
17 Permutations Categories SPOJ 1
18 Strategic Defense Initiative Categories UVA 1
19 Railway Tickets Categories Timus 1
20 Candy Categories SPOJ 1
21 Flags Categories Timus 1
22 Fibonacci Freeze Categories UVA 1
23 Coins Game Categories SPOJ 1
24 Compromise Categories UVA 1
25 LATGACH3 Categories SPOJ 1
26 In Danger Categories SPOJ 1
27 Adjacent Bit Counts Categories SPOJ 1
28 Cut Ribbon Categories Codeforces Codeforces Round #119 (Div. 2) 1
29 Prime Permutations Categories CodeChef 1
30 Chop Ahoy! Revisited! Categories SPOJ 1
31 Wachovia Bank Categories SPOJ 1
32 Trip Planning Categories Live Archive 2008 Asia - Taipei 1
33 Magic Grid Categories SPOJ 1
34 Dividing coins Categories UVA 1
35 Ultra-Fast Mathematician Categories Codeforces Codeforces Beta Round #57 (Div. 2) 1
36 Phidias Categories SPOJ 1
37 Making Change Categories TJU 1
38 Take the Land Categories UVA 1
39 K-based Numbers. Version 2 Categories Timus 1
40 Tile Code Categories Live Archive 2007 Asia - Seoul 1
41 Wedding shopping Categories UVA 1
42 How do you add? Categories UVA 1
43 0110SS Categories SPOJ 1
44 A+B Problem Categories PKU 1
45 Pilots Categories SPOJ 1
46 DNA Sequences Categories SPOJ 1
47 Metro Categories Timus 1
48 Vertex Cover Categories SPOJ 1
49 23 out of 5 Categories UVA 1
50 Bytelandian gold coins Categories SPOJ 1
51 Soft Drinking Categories Codeforces Codeforces Round #107 (Div. 2) 1
52 Party Schedule Categories SPOJ 1
53 Tiling a Grid With Dominoes Categories SPOJ 1
54 Longest Common Subsequence Categories UVA 1
55 Sums in a Triangle Categories SPOJ 1
56 Roads Categories SPOJ 1
57 Square Country Categories Timus 1
58 Two Ends Categories SPOJ 1
59 The Twin Towers Categories UVA 1
60 Assignments Categories SPOJ 1
61 Cross-country Categories SPOJ 1
62 Given Length and Sum of Digits... Categories Codeforces Codeforces Round #277.5 (Div. 2) 1
63 Mixtures Categories SPOJ 1
64 Fishmonger Categories SPOJ 1
65 Square Brackets Categories SPOJ 1
66 The Great Ball Categories SPOJ 1
67 The Double HeLiX Categories SPOJ 1
68 Pocket Money Categories SPOJ 1
69 Getting in Line Categories UVA 1
70 Largest Submatrix Categories UVA 1
71 Bee Walk Categories SPOJ 1
72 T-primes Categories Codeforces Codeforces Round #142 (Div. 2) 1
73 The Tower of Babylon Categories UVA 1
74 Cutting Sticks Categories UVA 1
75 Chocolate Categories SPOJ 1
76 THE DRUNK JAILER Categories PKU 1
77 K-based Numbers Categories Timus 1
78 Luggage Categories UVA 1
79 Maximum Sum Categories UVA 1
80 Save Thy Toys Categories SPOJ 1
81 Longest Run on a Snowboard Categories UVA 1
82 Martian Mining Categories SPOJ 1
83 Training for final Categories SPOJ 1
84 Unidirectional TSP Categories UVA 1
85 Philosophers Stone Categories SPOJ 1
86 Scuba diver Categories SPOJ 1
87 Coin Change Categories UVA 1
88 Hotels Along the Croatian Coast Categories SPOJ 1
89 Equal Sum Sets Categories Live Archive 2013 Asia - Aizu 1
90 Binary Apple Tree Categories Timus 1
91 The 3n + 1 problem Categories UVA 1
92 Rent your airplane and make money Categories SPOJ 1
93 Testing the CATCHER Categories UVA 1
94 Scientific Conference Categories Timus 1
95 Distinct Subsequences Categories UVA 1
96 Treats for the Cows Categories SPOJ 1
97 Stacking Boxes Categories UVA 1
98 Alphacode Categories SPOJ 1
99 Palindrome 2000 Categories SPOJ 1
100 To the Max Categories PKU 1
101 Edit distance Categories SPOJ 1
102 No Change Categories SPOJ 1
103 Boredom Categories Codeforces Codeforces Round #260 (Div. 1) & Codeforces Round #260 (Div. 2) 1
104 Sweet and Sour Rock Categories SPOJ 1
105 Let Me Count The Ways Categories UVA 1
106 Hangover Categories PKU 1
107 SuperSale Categories UVA 1
108 DIE HARD Categories SPOJ 1
109 Candy Categories Live Archive 2008 Latin America - South America 1
110 Is Bigger Smarter? Categories UVA 1
111 Staircases Categories Timus 1
112 Piggy-Bank Categories SPOJ 1
113 Vacation Categories UVA 1
114 Aibohphobia Categories SPOJ 1
115 Cheap Travel Categories Codeforces Codeforces Round #266 (Div. 2) 1
116 BLAST Categories SPOJ 1
117 Lucky Tickets Categories Timus 1
118 Trip Categories SPOJ 1
119 History Grading Categories UVA 1
120 Fool the Police Categories SPOJ 1
121 Rectangles Perimeter Categories SPOJ 1
122 Binary Lexicographic Sequence Categories Timus 1
123 Ice Sculptures Categories Codeforces VK Cup 2012 Qualification Round 1 1
124 Distinct Subsequences Categories SPOJ 1
125 Membership Management Categories Live Archive 2010 Asia - Tokyo 1
126 Divisibility Categories UVA 1
127 Enormous Input Test Categories CodeChef 1
128 The Knapsack Problem Categories SPOJ 1
129 Seinfeld Categories SPOJ 1
130 Army Categories Codeforces School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) 1
131 Dollars Categories UVA 1
132 Aliens at the train Categories SPOJ 1
133 Ingenuous Cubrency Categories UVA 1
134 Another Tree Problem Categories SPOJ 2
135 Robot Instructions Categories UVA 2
136 Making A Budget Categories SPOJ 2
137 Before an Exam Categories Codeforces Codeforces Beta Round #4 (Div. 2 Only) 2
138 Blueberries Categories SPOJ 2
139 Flight Planner Categories UVA 2
140 String problem Categories SPOJ 2
141 Murcia's Skyline Categories UVA 2
142 Bit Mask Categories UVA 2
143 I-Keyboard Categories SPOJ 2
144 MAXIMUM WOOD CUTTER Categories SPOJ 2
145 Three-coloring of binary trees Categories SPOJ 2
146 Longest Match Categories UVA 2
147 Game of Sum Categories UVA 2
148 Queue Categories UVA 2
149 Segments Categories Timus 2
150 Optimal Binary Search Tree Categories UVA 2
151 Up Subsequence Categories SPOJ 2
152 Flowers Categories Codeforces Codeforces Round #271 (Div. 2) 2
153 Travelling Salesman Categories UVA 2
154 Milliard Vasya's Function Categories Timus 2
155 XOR Maximization Categories SPOJ 2
156 Maximum Absurdity Categories Codeforces Codeforces Round #193 (Div. 2) 2
157 Boxes Categories UVA 2
158 Interesting number Categories SPOJ 2
159 Bar Codes Categories UVA 2
160 Another Box Problem Categories SPOJ 2
161 Make Palindrome Categories UVA 2
162 Cow Frisbee Team Categories TJU 2
163 Again Palindrome Categories UVA 2
164 Drop the Triples Categories Live Archive 2007 Latin America - South America 2
165 Tower of Cubes Categories UVA 2
166 Slurpys Categories UVA 2
167 The Courier Categories SPOJ 2
168 COSTLY CHESS Categories SPOJ 2
169 Counting The Way of Bracket Replacement Categories SPOJ 2
170 Simple Minded Hashing Categories UVA 2
171 Divisible Group Sums Categories UVA 2
172 Ministry Categories Timus 2
173 Trouble of 13-Dots Categories UVA 2
174 Black or White Categories SPOJ 2
175 k-Tree Categories Codeforces Codeforces Round #247 (Div. 2) 2
176 Point Connection Game in a Circle Categories SPOJ 2
177 Nudnik Photographer Categories Timus 2
178 Beautiful People Categories SGU 2
179 Pearls Categories Live Archive 2002 Europe - Northwestern 2
180 Fibo Categories A2 Online Judge 2
181 Weights and Measures Categories UVA 2
182 Black-White Grid Categories Live Archive 2006 Asia - Hanoi 2
183 Yoda Goes Palindromic ! Categories SPOJ 2
184 George and Job Categories Codeforces Codeforces Round #267 (Div. 2) 2
185 Nested Dolls Categories SPOJ 2
186 The Bale Tower Categories TJU 2
187 String Distance and Transform Process Categories UVA 2
188 Caesar's Legions Categories Codeforces Codeforces Beta Round #89 (Div. 2) 2
189 The least round way Categories Codeforces Codeforces Beta Round #2 2
190 Always on the run Categories UVA 2
191 NERED Categories SPOJ 2
192 Pebble Solitaire Categories UVA 2
193 The Marriage Interview :-) Categories UVA 2
194 Walking on the Safe Side Categories UVA 2
195 Particular Palindromes Categories SPOJ 2
196 Bicolored Horses Categories Timus 2
197 Street Categories SPOJ 2
198 Space Elevator Categories PKU 2
199 Card Sorting Categories SPOJ 2
200 Anniversary Party Categories Timus 2
201 Chilly Willy Categories Codeforces Codeforces Round #152 (Div. 2) 2
202 Game Show Math Categories UVA 2
203 Decoding Morse Sequences Categories SPOJ 2
204 Dab of Backpack Categories SPOJ 2
205 Catch Fish Categories SPOJ 2
206 Painting the balls Categories SGU 2
207 Dice Categories SPOJ 2
208 Con-Junctions Categories SPOJ 2
209 Chopsticks Categories UVA 2
210 Threeprime Numbers Categories Timus 2
211 JEDNAKOST Categories SPOJ 2
212 Sorting is not easy Categories SPOJ 2
213 Tetrahedron Categories Codeforces Codeforces Round #113 (Div. 2) 2
214 Activities Categories SPOJ 2
215 Temptation Island Categories SPOJ 2
216 Rain Categories SPOJ 2
217 Collecting Beepers Categories UVA 2
218 String Computer Categories UVA 2
219 Marks Distribution Categories UVA 2
220 Tiling Categories UVA 2
221 Mysterious Present Categories Codeforces Codeforces Beta Round #4 (Div. 2 Only) 2
222 Problem 3 Categories SPOJ 2
223 Partition Categories SPOJ 2
224 Diving for Gold Categories UVA 2
225 False Mirrors Categories Timus 2
226 Generations of Tribbles Categories Live Archive 2013 North America - Pacific Northwest 2
227 Physics Practical Categories Codeforces Codeforces Round #154 (Div. 2) 2
228 ACM (ACronymMaker) Categories SPOJ 2
229 Mobile Service Categories SPOJ 2
230 Jugs Categories UVA 2
231 Feline Olympics - Mouseball Categories SPOJ 2
232 Little Elephant and Painting Categories CodeChef 2
233 Tourist Categories SPOJ 2
234 Building Bridges Categories SPOJ 2
235 Musketeers Categories SPOJ 2
236 String to Palindrome Categories UVA 2
237 Another Problem on Strings Categories Codeforces Codeforces Round #112 (Div. 2) 2
238 Palindrome pairs Categories Codeforces VK Cup 2012 Qualification Round 2 2
239 Chop Ahoy! Revisited! Categories Live Archive 2005 Africa/Middle East - Arab and North Africa 3
240 Maximum Triangle Area Categories SPOJ 3
241 Chest of Drawers Categories UVA 3
242 Free Candies Categories UVA 3
243 Longest Regular Bracket Sequence Categories Codeforces Codeforces Beta Round #5 3
244 Antimatter Ray Clearcutting Categories UVA 3
245 Little Red Riding Hood Categories UVA 3
246 Deliver pizza Categories SPOJ 3
247 Paid Roads Categories SPOJ 3
248 Cards, bags and coins Categories CodeChef 3
249 Barcode Categories Codeforces Codeforces Round #139 (Div. 2) 3
250 Even Palindrome Categories SPOJ 3
251 Zeta-Nim Game Categories CodeChef 3
252 Sense of Beauty Categories Timus 3
253 Common Subsequences Categories SPOJ 3
254 To Add or Not to Add Categories Codeforces Codeforces Round #143 (Div. 2) 3
255 Minus Operation Categories SPOJ 3
256 Magic, Wizardry and Wonders Categories Codeforces Codeforces Round #143 (Div. 2) 3
257 Esferas Categories SPOJ 3
258 Distance in Tree Categories Codeforces VK Cup 2012 Round 1 3
259 Leaves Categories SPOJ 3
260 BadNeighbors Categories TopCoder TCCC '04 Round 4 - Div1 easy] (5009) 3
261 Traveling by Stagecoach Categories SPOJ 3
262 Budget Travel Categories UVA 3
263 Bribe the Prisoners Categories SPOJ 3
264 Minimal Coverage Categories Timus 3
265 Slikar Categories SPOJ 3
266 Weather Categories Codeforces Codeforces Round #145 (Div. 2, ACM-ICPC Rules) 3
267 Pebbles Categories Live Archive 2007 North America - Pacific Northwest & North America - Southern California 3
268 Little Elephant and Movies Categories CodeChef 3
269 Choosing Capital for Treeland Categories Codeforces Codeforces Round #135 (Div. 2) 3
270 Intervals of Monotonicity Categories Timus 3
271 Pleasing Chief Categories CodeChef 3
272 RGBStreet Categories TopCoder SRM 325 - Div2 medium] (10005) 3
273 Handball Categories UVA 3
274 Motoboy Categories URI 3
275 I-Keyboard Categories Live Archive 2000 Europe - Central 3
276 Orchard Trees Categories UVA 3
277 Many polygons Categories SPOJ 3
278 Scheduling Lectures Categories UVA 3
279 Buns Categories Codeforces Codeforces Beta Round #82 (Div. 2) 3
280 Fast Food Categories UVA 3
281 How Many O's? Categories UVA 3
282 Password Categories Codeforces Codeforces Beta Round #93 (Div. 1 Only) & Codeforces Beta Round #93 (Div. 2 Only) 3
283 BATMAN3 Categories SPOJ 3
284 Polygon Categories SPOJ 3
285 String Partition Categories UVA 3
286 Bag of mice Categories Codeforces Codeforces Round #105 (Div. 2) 3
287 Hierarchy Categories Timus 3
288 Determine it Categories UVA 3
289 Candy (Again) Categories SPOJ 3
290 Fortune Telling Categories Codeforces Codeforces Beta Round #55 (Div. 2) 3
291 Gentlemen Categories Timus 3
292 Erdos Numbers Categories Live Archive 2000 Europe - Northwestern & Europe - Southwestern & Europe - Mid-Central 3
293 Sereja and Game Categories CodeChef 3
294 The Matrix Game Categories CodeChef 3
295 Hometask Categories Codeforces Codeforces Round #131 (Div. 2) 3
296 Gargari and Permutations Categories Codeforces Codeforces Round #264 (Div. 2) 3
297 Fetching Cooking Tools Categories CodeChef 3
298 Menu Categories SPOJ 3
299 Color Stripe Categories Codeforces Codeforces Round #135 (Div. 2) 3
300 Mosaic Categories Live Archive 2009 North America - Southeast USA 3
301 Crime Wave - The Sequel Categories UVA 3
302 Hippity Hopscotch Categories UVA 3
303 Help Bob Categories SPOJ 3
304 Many Paths, One Destination Categories UVA 3
305 ZigZag Categories TopCoder TCCC '03 Semifinals 3 - Div1 easy] (4493) 3
306 Walking Around Wisely Categories UVA 3
307 Counting K-Rectangle Categories SPOJ 3
308 Sum of Different Primes Categories UVA 3
309 Balancing the Stone Categories SPOJ 3
310 String Shuffle Categories SPOJ 3
311 Brackets Sequence Categories Timus 3
312 End up with More Teams Categories UVA 3
313 Mnemonics and Palindromes Categories Timus 3
314 Fibonacci System Categories Live Archive 2008 Europe - Northeastern 3
315 Most Servings Meal Categories SPOJ 3
316 Counting binary strings Categories SPOJ 3
317 Partition the sequence Categories SPOJ 3
318 Matchsticks Categories TJU 4
319 Chocolate Box Categories UVA 4
320 Palindromic Subsequence Categories UVA 4
321 Bright Bracelet Categories Live Archive 2003 North America - Mid-Central USA 4
322 Queries for Number of Palindromes Categories Codeforces CROC-MBTU 2012, Elimination Round (ACM-ICPC) 4
323 Make Psycho Categories SPOJ 4
324 Term Strategy Categories UVA 4
325 A Lot of Games Categories Codeforces Codeforces Round #260 (Div. 1) & Codeforces Round #260 (Div. 2) 4
326 Crack Categories Timus 4
327 Account Book Categories UVA 4
328 Another Assignment Problem Categories SPOJ 4
329 Chocolate Categories SPOJ 4
330 The Secret of an Aerolite Categories SPOJ 4
331 Bit by Bit Categories SPOJ 4
332 Trees Again Categories SPOJ 4
333 Dominoes Categories SPOJ 4
334 Malevich Strikes Back! Categories Timus 4
335 Little Elephant and Interval Categories Codeforces Codeforces Round #129 (Div. 1) & Codeforces Round #129 (Div. 2) 4
336 Car with powers Categories SPOJ 4
337 One-two, One-two 2 Categories Timus 4
338 Beautiful Numbers Categories UVA 4
339 Let go to the movies Categories SPOJ 4
340 Destruction Cannon Categories URI 4
341 Hackers' Crackdown Categories UVA 4
342 Raucous Rockers Categories UVA 4
343 Pashmak and Graph Categories Codeforces Codeforces Round #261 (Div. 2) 4
344 Bargaining Table Categories Codeforces Codeforces Beta Round #22 (Div. 2 Only) 4
345 Drop the Triples Categories SPOJ 4
346 Dynamic LCA Categories SPOJ 4
347 Najkraci Categories SPOJ 4
348 Mars Canals Categories Timus 4
349 Antimonotonicity Categories UVA 4
350 String reduction Categories SPOJ 4
351 Tiling Dominoes Categories UVA 4
352 Matches Categories UVA 4
353 IOI07 Miners Categories SPOJ 4
354 Best Coalitions Categories UVA 4
355 Dumb Bones Categories UVA 4
356 Phone Talks Categories Codeforces VK Cup 2012 Qualification Round 1 4
357 Hometask Categories Codeforces Codeforces Round #109 (Div. 1) & Codeforces Round #109 (Div. 2) 4
358 Communication Fiend Categories Timus 4
359 Zeros and Ones Categories UVA 4
360 Substring and Subsequence Categories Codeforces VK Cup 2012 Round 2 4
361 Little Pony and Harmony Chest Categories Codeforces Codeforces Round #259 (Div. 1) & Codeforces Round #259 (Div. 2) 4
362 Digit Sum Categories UVA 4
363 COUNT PAREN Categories SPOJ 4
364 AGTC Categories UVA 4
365 Boy Scouts Categories SPOJ 4
366 Folding Categories Timus 4
367 Probablistic OR Categories SPOJ 4
368 Minion Circle Categories CodeChef 4
369 Fewest Flops Categories UVA 4
370 Bottle Taps Categories Timus 4
371 Lemon Tale Categories Timus 4
372 Classmates 2 Categories Timus 4
373 Who is The Boss Categories SPOJ 4
374 SMS Categories Timus 4
375 Building Bridges(HARD) Categories SPOJ 4
376 Message Categories Codeforces Codeforces Round #110 (Div. 1) & Codeforces Round #110 (Div. 2) 4
377 Little Elephant and Blocks Categories CodeChef 4
378 BATMAN1 Categories SPOJ 4
379 Games with Rectangle Categories Codeforces Codeforces Beta Round #94 (Div. 1 Only) & Codeforces Beta Round #94 (Div. 2 Only) 5
380 Spiders Categories Codeforces School Regional Team Contest, Saratov, 2011 5
381 Candy Categories UVA 5
382 IPL - CRICKET TOURNAMENT Categories SPOJ 5
383 Little Elephant and Elections Categories Codeforces Codeforces Round #157 (Div. 1) & Codeforces Round #157 (Div. 2) 5
384 Allergy Test Categories UVA 5
385 Ship Routes Categories Timus 5
386 Happiness to People! Categories Timus 5
387 Expect the Expected Categories UVA 5
388 Police Station Categories Codeforces Codeforces Round #130 (Div. 2) 5
389 Count Digits Categories CodeChef 5
390 How many trees? Categories Codeforces Codeforces Beta Round #9 (Div. 2 Only) 5
391 Compatible Numbers Categories Codeforces Codeforces Round #112 (Div. 2) 5
392 Logo Turtle Categories Codeforces Codeforces Beta Round #96 (Div. 1) & Codeforces Beta Round #96 (Div. 2) 5
393 Busy Programmer Categories UVA 5
394 Almost Arithmetical Progression Categories Codeforces Codeforces Round #156 (Div. 2) & Codeforces Round #156 (Div. 1) 5
395 Coin Changing Again Categories UVA 5
396 Lucky Common Subsequence Categories Codeforces Codeforces Round #201 (Div. 1) & Codeforces Round #201 (Div. 2) 5
397 Independent Attacking Zones Categories UVA 5
398 Summing Slopes Categories CodeChef 5
399 Eternal Victory Categories Codeforces Codeforces Beta Round #57 (Div. 2) 5
400 Balanced Numbers Categories SPOJ 5
401 Dynasty Puzzles Categories Codeforces Codeforces Round #121 (Div. 1) & Codeforces Round #121 (Div. 2) 5
402 Mr. Kitayuta, the Treasure Hunter Categories Codeforces Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) 5
403 Roadworks Categories Timus 5
404 Lov-e Pap Pap-e Polti Categories SPOJ 5
405 File List Categories Codeforces VK Cup 2012 Round 3 (Unofficial Div. 2 Edition) 5
406 Cinema Cashier Categories Codeforces Codeforces Beta Round #10 5
407 Optimal Cut Categories UVA 5
408 Wonderful Randomized Sum Categories Codeforces Codeforces Beta Round #33 (Codeforces format) 5
409 Sereja and Bubble Sort Categories CodeChef 5
410 The Islands Categories UVA 5
411 Gasoline Station Categories Timus 5
412 Enemy is weak Categories Codeforces Codeforces Beta Round #57 (Div. 2) 5
413 Clear Symmetry Categories Codeforces Codeforces Round #127 (Div. 1) & Codeforces Round #127 (Div. 2) 5
414 Subsequence Problem Categories SPOJ 5
415 Cargo Agency Categories Timus 5
416 Partial Teacher Categories Codeforces Manthan 2011 5
417 Connect Line Segments Categories SPOJ 5
418 Increase Sequence Categories Codeforces Codeforces Round #266 (Div. 2) 5
419 BATMAN4 Categories SPOJ 5
420 Fatawy Categories SPOJ 5
421 The Bridges of Kolsberg Categories UVA 5
422 Basketball Team Categories Codeforces Codeforces Beta Round #83 (Div. 1 Only) & Codeforces Beta Round #83 (Div. 2 Only) 5
423 Batman Categories UVA 5
424 Looking for Order Categories Codeforces Codeforces Beta Round #8 5
425 Convex Polygons Categories SPOJ 5
426 Porcelain Categories Codeforces Codeforces Round #105 (Div. 2) 5
427 Petr# Categories Codeforces Codeforces Beta Round #86 (Div. 1 Only) & Codeforces Beta Round #86 (Div. 2 Only) 5
428 Train Categories Timus 5
429 Train Categories Codeforces Codeforces Beta Round #68 5
430 Let's Play Osu! Categories Codeforces Codeforces Round #146 (Div. 1) & Codeforces Round #146 (Div. 2) 5
431 CreatureTraining Categories TopCoder TCO08 Round 2 - Div1 medium] (12012) 5
432 DNA Laboratory Categories SPOJ 5
433 Beaver Categories Codeforces Codeforces Beta Round #71 5
434 INVITATION FOR TECHOFES Categories SPOJ 5
435 Decoding Genome Categories Codeforces Codeforces Round #137 (Div. 2) 5
436 Paint templates Categories SPOJ 5
437 Huffman´s Greed Categories SPOJ 5
438 Avoiding Jungle in the Dark Categories UVA 5
439 E-mail Categories Timus 5
440 Solitaire Categories Codeforces Codeforces Round #130 (Div. 2) 5
441 Paint the Tree Categories CodeChef 5
442 ICPC Team Strategy Categories UVA 5
443 WordMath Categories TopCoder Unknown () 5
444 Kalila and Dimna in the Logging Industry Categories Codeforces Codeforces Round #189 (Div. 1) & Codeforces Round #189 (Div. 2) 6
445 MagicNaming Categories TopCoder SRM 526.5 - Div2 hard] (14762) 6
446 ACM Diagnostics Categories Timus 6
447 The Top-Code Categories SPOJ 6
448 Numbers Categories Codeforces Codeforces Round #131 (Div. 1) & Codeforces Round #131 (Div. 2) 6
449 Optical Experiment Categories Codeforces Manthan 2011 6
450 Sequence Categories Codeforces Codeforces Beta Round #13 6
451 Cipher Categories Codeforces Codeforces Round #110 (Div. 1) & Codeforces Round #110 (Div. 2) 6
452 Number With The Given Amount Of Divisors Categories Codeforces Codeforces Beta Round #27 (Codeforces format, Div. 2) 6
453 Spiral Maximum Categories Codeforces Croc Champ 2012 - Round 1 6
454 Atomic Car Race Categories UVA 6
455 Stripe 2 Categories Codeforces Codeforces Alpha Round #21 (Codeforces format) 6
456 Incrementing The Integer Categories SPOJ 6
457 Anniversary Firework Categories Timus 6
458 Let's Go Rolling! Categories Codeforces School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) 6
459 Wooden Fence Categories Codeforces Codeforces Round #117 (Div. 2) 6
460 Lizards and Basements 2 Categories Codeforces Codeforces Beta Round #6 (Div. 2 Only) 6
461 Lucky Subsequence Categories Codeforces Codeforces Round #104 (Div. 1) & Codeforces Round #104 (Div. 2) 6
462 Common Palindrome Categories UVA 6
463 Fibonacci Words Categories UVA 6
464 Number Transformation Categories Codeforces Codeforces Round #153 (Div. 1) & Codeforces Round #153 (Div. 2) 6
465 GO FOR DIAMONDS Categories SPOJ 6
466 Relay Race Categories Codeforces Codeforces Round #131 (Div. 1) & Codeforces Round #131 (Div. 2) 6
467 Right Triangles Categories Codeforces Codeforces Testing Round #1 6
468 Decimation Categories Timus 6
469 BATMAN2 Categories SPOJ 6
470 Interesting Game Categories Codeforces Codeforces Beta Round #73 (Div. 1 Only) & Codeforces Beta Round #73 (Div. 2 Only) 6
471 LionAge II Categories Codeforces Codeforces Beta Round #66 6
472 Fence Categories Codeforces Codeforces Round #145 (Div. 2, ACM-ICPC Rules) & Codeforces Round #145 (Div. 1, ACM-ICPC Rules) 6
473 Two out of Three Categories Codeforces Yandex.Algorithm 2011 Qualification 2 6
474 Beaver Game Categories Codeforces Codeforces Beta Round #70 (Div. 2) 6
475 JUMPING DORA Categories SPOJ 6
476 Enterprise Categories Timus 6
477 The Maths Lecture Categories Codeforces Codeforces Round #287 (Div. 2) 6
478 Table Categories Codeforces Codeforces Round #144 (Div. 1) & Codeforces Round #144 (Div. 2) 6
479 Patches Categories URI 6
480 Towers Categories Codeforces Codeforces Round #142 (Div. 1) 6
481 Summing Slopes Categories SPOJ 6
482 LCIS Categories Codeforces Codeforces Beta Round #10 6
483 Promotion Categories URI 6
484 Animals Categories Codeforces Codeforces Beta Round #35 (Div. 2) 6
485 Weak Links Categories UVA 6
486 Mystic Craft Categories SPOJ 6
487 Palindromes Categories Codeforces Codeforces Beta Round #98 (Div. 2) 6
488 Education Reform Categories Codeforces Codeforces Beta Round #90 6
489 Sort that Queue Categories Live Archive 2005 Africa/Middle East - Arab and North Africa 6
490 Buses Categories Codeforces Codeforces Beta Round #79 (Div. 1 Only) & Codeforces Beta Round #79 (Div. 2 Only) 6
491 Fragile Bridges Categories Codeforces Codeforces Round #127 (Div. 1) & Codeforces Round #127 (Div. 2) 6
492 AlgoRace Categories Codeforces Codeforces Round #119 (Div. 1) & Codeforces Round #119 (Div. 2) 6
493 Fox And Jumping Categories Codeforces Codeforces Round #290 (Div. 2) & Codeforces Round #290 (Div. 1) 6
494 Playing War Categories UVA 6
495 Shooting Gallery Categories Codeforces Codeforces Beta Round #30 (Codeforces format) 6
496 Bracket Sequence Categories SPOJ 6
497 A Simple Task Categories Codeforces Codeforces Beta Round #11 6
498 Game --- Mouse and Cheese Categories UVA 6
499 Wizards and Huge Prize Categories Codeforces Codeforces Round #114 (Div. 1) & Codeforces Round #114 (Div. 2) 6
500 Coloring Brackets Categories Codeforces Codeforces Round #106 (Div. 2) 6
501 Checkout Assistant Categories Codeforces Codeforces Beta Round #19 6
502 Cubes Categories Codeforces Codeforces Round #116 (Div. 2, ACM-ICPC Rules) 6
503 Fish Categories Codeforces Codeforces Beta Round #16 (Div. 2 Only) 6
504 Beavermuncher-0xFF Categories Codeforces Codeforces Beta Round #69 (Div. 1 Only) & Codeforces Beta Round #69 (Div. 2 Only) 7
505 Comb Categories Codeforces School Personal Contest #2 (Winter Computer School 2010/11) - Codeforces Beta Round #43 (ACM-ICPC Rules) 7
506 Component Testing Categories Live Archive 2012 North America - Mid-Atlantic USA & North America - Southern California & North America - Southeast USA 7
507 Maximum Sub-sequence Product Categories Live Archive 1996 Europe - Southeastern 7
508 Eating High Categories Timus 7
509 Join Categories Timus 7
510 Word Cut Categories Codeforces Croc Champ 2012 - Round 2 7
511 Two Longest Paths Categories UVA 7
512 Merry-go-round Categories Timus 7
513 Alternative Solution Categories Timus 7
514 TV Game Categories Codeforces Codeforces Beta Round #31 (Div. 2, Codeforces format) 7
515 Big Maximum Sum Categories Codeforces Codeforces Beta Round #67 (Div. 2) 7
516 World Eater Brothers Categories Codeforces Codeforces Round #148 (Div. 1) & Codeforces Round #148 (Div. 2) 7
517 Lost in Space Categories Timus 7
518 Fractal Detector Categories Codeforces Codeforces Round #141 (Div. 2) 7
519 Salary for Robots Categories Timus 7
520 Pawn Categories Codeforces Codeforces Beta Round #40 (Div. 2) 7
521 One-Based Arithmetic Categories Codeforces Testing Round #10 7
522 Beautiful numbers Categories Codeforces Codeforces Beta Round #51 7
523 Brainfuck Categories Timus 7
524 Cactus Categories Codeforces Codeforces Round #143 (Div. 2) 7
525 Petya and Post Categories Codeforces Codeforces Beta Round #61 (Div. 2) 7
526 Yet Another Answer Categories Timus 7
527 Seller Bob Categories Codeforces Codeforces Beta Round #18 (Div. 2 Only) 7
528 Brainwashing Device Categories Timus 7
529 Camels Categories Codeforces Codeforces Beta Round #14 (Div. 2) 7
530 Petya and Spiders Categories Codeforces Codeforces Beta Round #85 (Div. 1 Only) & Codeforces Beta Round #85 (Div. 2 Only) 7
531 Constants in the language of Shakespeare Categories Codeforces Codeforces Beta Round #96 (Div. 1) 7
532 Ciel and Gondolas Categories Codeforces Codeforces Round #190 (Div. 1) 7
533 Anfisa the Monkey Categories Codeforces School Team Contest #2 (Winter Computer School 2010/11) 7
534 Lunar Code Categories Timus 7
535 Dot Categories Codeforces Codeforces Beta Round #63 (Div. 2) 7
536 Martian Plates Categories Timus 7
537 TheProgrammingContestDivOne Categories TopCoder SRM 502 - Div1 medium] (14431) 7
538 Table Tennis Categories UVA 7
539 Flag 2 Categories Codeforces Codeforces Beta Round #18 (Div. 2 Only) 7
540 Name Categories Codeforces Codeforces Round #116 (Div. 2, ACM-ICPC Rules) 7
541 Fibonacci Sums Categories Codeforces Codeforces Beta Round #93 (Div. 1 Only) 7
542 Cats Transport Categories Codeforces Codeforces Round #185 (Div. 1) & Codeforces Round #185 (Div. 2) 7
543 Colored Tiles Categories UVA 7
544 Eleven Categories UVA 7
545 Lucky Numbers Categories Codeforces Codeforces Beta Round #77 (Div. 1 Only) 7
546 Martian Army Categories Timus 7
547 First Digit Law Categories Codeforces Codeforces Beta Round #50 7
548 Bombing Categories Codeforces Codeforces Beta Round #47 7
549 Yet Another Assignment Problem Categories SPOJ 7
550 Plants vs. Zombies HD SP Categories UVA 7
551 Catch Sheep Categories SPOJ 7
552 Beads Categories Codeforces Codeforces Beta Round #8 8
553 Castle Categories Codeforces Codeforces Beta Round #79 (Div. 1 Only) 8
554 Help Caretaker Categories Codeforces Codeforces Round #102 (Div. 1) & Codeforces Round #102 (Div. 2) 8
555 Widget Library Categories Codeforces Codeforces Beta Round #74 (Div. 1 Only) & Codeforces Beta Round #74 (Div. 2 Only) 8
556 Yekaterinburg Subway Categories Timus 8
557 K-based Numbers. Version 3 Categories Timus 8
558 Dormitory Categories Codeforces Codeforces Round #155 (Div. 2) 8
559 Nuclear Fusion Categories Codeforces Codeforces Beta Round #65 (Div. 2) 8
560 Password Categories Codeforces Codeforces Beta Round #71 8
561 Brand New Problem Categories Codeforces Codeforces Round #127 (Div. 1) 8
562 What Has Dirichlet Got to Do with That? Categories Codeforces School Team Contest #1 (Winter Computer School 2010/11) 8
563 Writing a Song Categories Codeforces Codeforces Beta Round #50 8
564 Sweets Game Categories Codeforces Codeforces Beta Round #59 (Div. 2) 8
565 Balance Categories Codeforces Codeforces Beta Round #17 8
566 Brackets Categories Codeforces Codeforces Beta Round #92 (Div. 1 Only) & Codeforces Beta Round #92 (Div. 2 Only) 8
567 Linear Kingdom Races Categories Codeforces Codeforces Beta Round #87 (Div. 1 Only) 8
568 Little Elephant and Broken Sorting Categories Codeforces Codeforces Round #157 (Div. 1) 8
569 Genetic engineering Categories Codeforces Yandex.Algorithm 2011 Round 2 8
570 Fibonacci army Categories Codeforces Unknown Language Round #2 8
571 Lucky Country Categories Codeforces Codeforces Beta Round #77 (Div. 1 Only) 8
572 Blood Cousins Return Categories Codeforces Codeforces Round #151 (Div. 2) 8
573 Archer's Travel Categories Timus 8
574 Multicolored Marbles Categories Codeforces VK Cup 2012 Finals, Practice Session 8
575 Bath Queue Categories Codeforces Codeforces Beta Round #28 (Codeforces format) 8
576 Polycarpus the Safecracker Categories Codeforces VK Cup 2012 Round 1 8
577 Defining Macros Categories Codeforces Codeforces Beta Round #7 8
578 Lostborn Categories Codeforces Codeforces Beta Round #76 (Div. 1 Only) 8
579 Little Elephant and Retro Strings Categories Codeforces Codeforces Round #129 (Div. 1) 8
580 Changing a String Categories Codeforces Codeforces Beta Round #52 (Div. 2) 8
581 Dead Ends Categories Codeforces Codeforces Beta Round #49 (Div. 2) 8
582 Common ancestor Categories Codeforces Codeforces Beta Round #46 (Div. 2) 8
583 Don't fear, DravDe is kind Categories Codeforces Codeforces Beta Round #28 (Codeforces format) 8
584 Inventory Categories UVA 8
585 Tree Categories Codeforces Codeforces Beta Round #23 8
586 2048 Categories Codeforces Coder-Strike 2014 - Round 2 8
587 Clearing Up Categories Codeforces Codeforces Round #101 (Div. 2) 8
588 Beautiful Road Categories Codeforces Codeforces Beta Round #73 (Div. 1 Only) 8
589 Lucky Arrays Categories Codeforces Codeforces Round #156 (Div. 1) 8
590 Numbers Categories Codeforces Codeforces Beta Round #72 (Div. 1 Only) 8
591 Tourist Categories Codeforces All-Ukrainian School Olympiad in Informatics 8
592 Phone Number Categories Codeforces School Team Contest #2 (Winter Computer School 2010/11) 8
593 Periodical Numbers Categories Codeforces Codeforces Round #132 (Div. 2) 8
594 IT Restaurants Categories Codeforces VK Cup 2012 Finals (unofficial online-version) 8
595 Sequence of Balls Categories Codeforces Manthan 2011 8
596 Gifts Categories Codeforces Codeforces Round #142 (Div. 1) 8
597 Broken robot Categories Codeforces Codeforces Beta Round #24 8
598 Frequent Flyer Card Categories Timus 8
599 Oil Skimming Categories A2 Online Judge 8
600 World of Darkraft Categories Codeforces Codeforces Beta Round #99 (Div. 1) 9
601 Arrangement Categories Codeforces Codeforces Beta Round #83 (Div. 1 Only) & Codeforces Beta Round #83 (Div. 2 Only) 9
602 Unambiguous Arithmetic Expression Categories Codeforces Codeforces Beta Round #87 (Div. 1 Only) 9
603 Hanger Categories Codeforces Codeforces Beta Round #68 9
604 Number Challenge Categories Codeforces Codeforces Round #146 (Div. 1) 9
605 Two Subsequences Categories Codeforces Codeforces Beta Round #72 (Div. 1 Only) 9
606 Donkey and Stars Categories Codeforces Codeforces Round #152 (Div. 1) 9
607 Horse Races Categories Codeforces Codeforces Beta Round #77 (Div. 1 Only) & Codeforces Beta Round #77 (Div. 2 Only) 9
608 Formurosa Categories Codeforces Codeforces Round #134 (Div. 1) & Codeforces Round #134 (Div. 2) 9
609 Caterpillar Categories Codeforces Codeforces Beta Round #48 9
610 Candy Store Categories Live Archive 2012 North America - Southeast USA 9
611 Mission Impassable Categories Codeforces Codeforces Round #107 (Div. 1) 9
612 StackingBoxes Categories TopCoder SRM 261 - Div1 hard] (7995) 9
613 Crime Management Categories Codeforces Codeforces Beta Round #83 (Div. 1 Only) 9
614 Candies and Stones Categories Codeforces Codeforces Beta Round #79 (Div. 1 Only) 9
615 Pairs Categories Codeforces Yandex.Algorithm Open 2011 Qualification 1 9
616 Domino Carpet Categories Codeforces Codeforces Beta Round #69 (Div. 1 Only) 9
617 Flags Categories Codeforces Codeforces Beta Round #76 (Div. 1 Only) 9
618 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
619 Half-decay tree Categories Codeforces Codeforces Beta Round #62 9
620 Garden Categories Codeforces Codeforces Round #108 (Div. 2) 9
621 Shoe Store Categories Codeforces Codeforces Round #113 (Div. 2) 9
622 Smart Boy Categories Codeforces School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) 9
623 T-shirt Categories Codeforces Croc Champ 2012 - Final 9
624 Hyper String Categories Codeforces Croc Champ 2012 - Round 2 9
625 New Year Garland Categories Codeforces Codeforces Round #100 9
626 Liars and Serge Categories Codeforces Codeforces Round #156 (Div. 1) 9
627 Somali Pirates Categories Timus 9
628 Little Elephant and Triangle Categories Codeforces Codeforces Round #136 (Div. 1) 9
629 Cowboys Categories Codeforces VK Cup 2012 Finals (unofficial online-version) 9
630 Plane of Tanks: Duel Categories Codeforces Codeforces Round #115 9
631 Triangles Categories Codeforces Codeforces Beta Round #15 9
632 Journey Categories Codeforces Codeforces Beta Round #53 9
633 Information Reform Categories Codeforces Codeforces Beta Round #64 9
634 Power Defence Categories Codeforces Codeforces Round #115 9
635 Faryuks Categories Timus 9
636 Moon Craters Categories Codeforces School Team Contest #1 (Winter Computer School 2010/11) 9
637 Lesson Timetable Categories Codeforces Codeforces Beta Round #37 9
638 Quick Tortoise Categories Codeforces Codeforces Round #144 (Div. 1) 10
639 Expression Categories Codeforces Codeforces Beta Round #54 (Div. 2) 10
640 Dynamic Assignment Problem Categories SPOJ 10
641 Hellish Constraints Categories Codeforces Codeforces Beta Round #99 (Div. 1) 10
642 Mrs. Hudson's Pancakes Categories Codeforces Codeforces Round #110 (Div. 1) 10
643 Meeting Her Categories Codeforces Codeforces Round #148 (Div. 1) 10
644 Tree and Table Categories Codeforces Codeforces Round #153 (Div. 1) 10
645 Help Shrek and Donkey Categories Codeforces Codeforces Beta Round #78 (Div. 1 Only) 10
646 Mutation Categories Codeforces All-Ukrainian School Olympiad in Informatics 10
647 Dynamic Programming Categories A2 Online Judge 10
648 The Great Marathon Categories Codeforces School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) 10
649 Clever Fat Rat Categories Codeforces Codeforces Round #118 (Div. 1) & Codeforces Round #118 (Div. 2) 10
650 Steaks on Board Categories Timus 10
651 Cubes Categories Codeforces Codeforces Round #150 (Div. 1) 10
652 Doe Graphs Categories Codeforces Codeforces Round #144 (Div. 1) & Codeforces Round #144 (Div. 2) 10
653 Piglet's Birthday Categories Codeforces Codeforces Round #152 (Div. 2) & Codeforces Round #152 (Div. 1) 10
654 World Evil Categories Codeforces Codeforces Beta Round #58 10
655 And Yet Another Bracket Sequence Categories Codeforces VK Cup 2015 - Round 1 10