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