You must be logged in to add problems to this category

constructive algorithms problems
Problem Name Online Judge Contest Difficulty Level
1 Hexadecimal's theorem Categories Codeforces Codeforces Round #125 (Div. 2) 1
2 Chloe and the sequence Categories Codeforces Codeforces Round #384 (Div. 2) 1
3 Exam Categories Codeforces Codeforces Round #298 (Div. 2) 1
4 Diverse Permutation Categories Codeforces Codeforces Round #275 (Div. 1) & Codeforces Round #275 (Div. 2) 1
5 Game Categories Codeforces Rockethon 2015 1
6 Timofey and cubes Categories Codeforces Codeforces Round #395 (Div. 2) 1
7 Fedor and New Game Categories Codeforces Codeforces Round #267 (Div. 2) 1
8 Alyona and Numbers Categories Codeforces Codeforces Round #358 (Div. 2) 1
9 Quasi Binary Categories Codeforces Codeforces Round #300 1
10 Mahmoud and a Triangle Categories Codeforces Codeforces Round #396 (Div. 2) 1
11 Lucky Sum of Digits Categories Codeforces Codeforces Beta Round #84 (Div. 1 Only) & Codeforces Beta Round #84 (Div. 2 Only) 1
12 Vladik and flights Categories Codeforces Codeforces Round #384 (Div. 2) 1
13 Road Construction Categories Codeforces Codeforces Round #192 (Div. 2) 1
14 Bear and Finding Criminals Categories Codeforces Codeforces Round #356 (Div. 2) 1
15 Far Relative’s Birthday Cake Categories Codeforces Codeforces Round #343 (Div. 2) 1
16 Chris and Magic Square Categories Codeforces Codeforces Round #369 (Div. 2) 1
17 Mike and palindrome Categories Codeforces Codeforces Round #410 (Div. 2) 1
18 Different is Good Categories Codeforces Codeforces Round #352 (Div. 2) 1
19 Simple Game Categories Codeforces Codeforces Round #316 (Div. 2) 1
20 Lovely Palindromes Categories Codeforces Codeforces Round #360 (Div. 2) 1
21 Before an Exam Categories Codeforces Codeforces Beta Round #4 (Div. 2 Only) 1
22 Team Categories Codeforces Codeforces Round #235 (Div. 2) 1
23 Fraction Categories Codeforces Codeforces Round #433 (Div. 2, based on Olympiad of Metropolises) 1
24 Bear and Five Cards Categories Codeforces Codeforces Round #356 (Div. 2) 1
25 Anton and Letters Categories Codeforces Codeforces Round #253 (Div. 2) 1
26 Mahmoud and Longest Uncommon Subsequence Categories Codeforces Codeforces Round #396 (Div. 2) 1
27 Array Categories Codeforces Codeforces Round #181 (Div. 2) 1
28 Insomnia cure Categories Codeforces Codeforces Round #105 (Div. 2) 1
29 Queue at the School Categories Codeforces Codeforces Round #163 (Div. 2) 1
30 Random Teams Categories Codeforces Codeforces Round #273 (Div. 2) 1
31 Free Ice Cream Categories Codeforces Codeforces Round #359 (Div. 2) 1
32 Shell Game Categories Codeforces Codeforces Round #401 (Div. 2) 1
33 Present from Lena Categories Codeforces Codeforces Beta Round #89 (Div. 2) 1
34 Little Robber Girl's Zoo Categories Codeforces Codeforces Round #359 (Div. 2) 2
35 Vasya and Digital Root Categories Codeforces Codeforces Round #206 (Div. 2) 2
36 Buggy Sorting Categories Codeforces Codeforces Round #151 (Div. 2) 2
37 New Year Book Reading Categories Codeforces Good Bye 2014 2
38 An express train to reveries Categories Codeforces Codeforces Round #418 (Div. 2) 2
39 Plus and Square Root Categories Codeforces Codeforces Round #372 (Div. 1) & Codeforces Round #372 (Div. 2) 2
40 Bear and Prime 100 Categories Codeforces Codeforces Round #356 (Div. 1) & Codeforces Round #356 (Div. 2) 2
41 Sorting Railway Cars Categories Codeforces Codeforces Round #335 (Div. 1) & Codeforces Round #335 (Div. 2) 2
42 Valera and Tubes Categories Codeforces Codeforces Round #252 (Div. 2) 2
43 Mashmokh and Numbers Categories Codeforces Codeforces Round #240 (Div. 1) & Codeforces Round #240 (Div. 2) 2
44 Vladik and fractions Categories Codeforces Codeforces Round #384 (Div. 2) 2
45 Maxim Buys an Apartment Categories Codeforces Codeforces Round #433 (Div. 2, based on Olympiad of Metropolises) 2
46 Beautiful Sets of Points Categories Codeforces Codeforces Round #164 (Div. 2) 2
47 Alyona and mex Categories Codeforces Codeforces Round #381 (Div. 1) & Codeforces Round #381 (Div. 2) 2
48 Cumulative Sum Query Categories SPOJ 2
49 GCD Table Categories Codeforces Codeforces Round #323 (Div. 1) & Codeforces Round #323 (Div. 2) 2
50 Sea and Islands Categories Codeforces Codeforces Round #302 (Div. 2) 2
51 Valued Keys Categories Codeforces Codeforces Round #409 (rated, Div. 2, based on VK Cup 2017 Round 2) 2
52 Levko and Table Categories Codeforces Codeforces Round #210 (Div. 2) 2
53 Vasya and Chess Categories Codeforces Codeforces Round #281 (Div. 2) 2
54 24 Game Categories Codeforces Codeforces Round #268 (Div. 1) & Codeforces Round #268 (Div. 2) 2
55 New Year Present Categories Codeforces Good Bye 2013 2
56 Painting Pebbles Categories Codeforces Codeforces Round #289 (Div. 2, ACM ICPC Rules) 2
57 Bits Categories Codeforces Codeforces Round #276 (Div. 1) & Codeforces Round #276 (Div. 2) 2
58 Soldier and Number Game Categories Codeforces Codeforces Round #304 (Div. 2) 2
59 Bear and Forgotten Tree 3 Categories Codeforces VK Cup 2016 - Round 1 2
60 Parallelogram is Back Categories Codeforces Codeforces Round #388 (Div. 2) 2
61 Escape from Stones Categories Codeforces Codeforces Round #162 (Div. 1) & Codeforces Round #162 (Div. 2) 2
62 War of the Corporations Categories Codeforces Codeforces Round #342 (Div. 2) 2
63 Print Check Categories Codeforces Codeforces Round #344 (Div. 2) 2
64 Guess the Permutation Categories Codeforces Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) 2
65 Replacement Categories Codeforces Codeforces Round #316 (Div. 2) 2
66 Restoring Painting Categories Codeforces Codeforces Round #353 (Div. 2) 2
67 Alyona and flowers Categories Codeforces Codeforces Round #381 (Div. 2) 2
68 Removing Columns Categories Codeforces Codeforces Round #283 (Div. 2) & Codeforces Round #283 (Div. 1) 2
69 K-special Tables Categories Codeforces Codeforces Round #342 (Div. 2) 2
70 Gerald is into Art Categories Codeforces Codeforces Round #313 (Div. 2) 2
71 Lesha and array splitting Categories Codeforces Codeforces Round #390 (Div. 2) 2
72 Kalevitch and Chess Categories Codeforces Codeforces Beta Round #7 3
73 Cows and Sequence Categories Codeforces Codeforces Round #174 (Div. 1) & Codeforces Round #174 (Div. 2) 3
74 Parliament of Berland Categories Codeforces CROC 2016 - Qualification 3
75 A + B Strikes Back Categories Codeforces April Fools Day Contest 2014 3
76 From Y to Y Categories Codeforces Codeforces Round #431 (Div. 1) & Codeforces Round #431 (Div. 2) 3
77 Mister B and Angle in Polygon Categories Codeforces Codeforces Round #421 (Div. 2) 3
78 Permutation Categories Codeforces Codeforces Round #209 (Div. 2) 3
79 Easter Eggs Categories Codeforces Codeforces Beta Round #70 (Div. 2) 3
80 Misha and Forest Categories Codeforces Codeforces Round #285 (Div. 2) & Codeforces Round #285 (Div. 1) 3
81 Cards Categories Codeforces 8VC Venture Cup 2016 - Elimination Round 3
82 Little Elephant and Array Categories Codeforces Codeforces Round #136 (Div. 1) & Codeforces Round #136 (Div. 2) 3
83 Interesting Array Categories Codeforces Codeforces Round #275 (Div. 1) & Codeforces Round #275 (Div. 2) 3
84 Coat of Anticubism Categories Codeforces Codeforces Round #349 (Div. 2) 3
85 Graph and String Categories Codeforces AIM Tech Round (Div. 1) & AIM Tech Round (Div. 2) 3
86 Cards with Numbers Categories Codeforces Codeforces Round #155 (Div. 2) 3
87 Dice Tower Categories Codeforces Codeforces Round #139 (Div. 2) 3
88 Football Categories Codeforces RCC 2014 Warmup (Div. 2) & RCC 2014 Warmup (Div. 1) 3
89 Polyline Categories Codeforces Codeforces Round #340 (Div. 2) 3
90 Xenia and Weights Categories Codeforces Codeforces Round #197 (Div. 2) 3
91 Ilya and Matrix Categories Codeforces Codeforces Round #186 (Div. 2) 3
92 Marina and Vasya Categories Codeforces Codeforces Round #324 (Div. 2) 3
93 Levko and Permutation Categories Codeforces Codeforces Round #210 (Div. 2) 3
94 Secret Combination Categories Codeforces Codeforces Round #283 (Div. 2) 3
95 Increasing Sequence Categories Codeforces Codeforces Beta Round #11 3
96 Lucky Permutation Triple Categories Codeforces Codeforces Round #183 (Div. 1) & Codeforces Round #183 (Div. 2) 3
97 A Trivial Problem Categories Codeforces Manthan, Codefest 16 3
98 Mike and Cellphone Categories Codeforces Codeforces Round #361 (Div. 2) 3
99 Flag Day Categories Codeforces Codeforces Round #207 (Div. 2) 3
100 Lucky String Categories Codeforces Codeforces Beta Round #84 (Div. 2 Only) 3
101 Purification Categories Codeforces Codeforces Round #192 (Div. 1) & Codeforces Round #192 (Div. 2) 3
102 Longest Regular Bracket Sequence Categories Codeforces Codeforces Beta Round #5 3
103 Pashmak and Buses Categories Codeforces Codeforces Round #261 (Div. 2) 3
104 Valera and Contest Categories Codeforces Codeforces Round #216 (Div. 2) 3
105 XOR and OR Categories Codeforces Codeforces Round #173 (Div. 2) 3
106 Searching for Graph Categories Codeforces Codeforces Round #236 (Div. 2) & Codeforces Round #236 (Div. 1) 3
107 Short Program Categories Codeforces Codeforces Round #443 (Div. 1) & Codeforces Round #443 (Div. 2) 3
108 Regular Bridge Categories Codeforces Codeforces Round #306 (Div. 2) 4
109 Yaroslav and Sequence Categories Codeforces Codeforces Round #182 (Div. 1) & Codeforces Round #182 (Div. 2) 4
110 Devu and Partitioning of the Array Categories Codeforces Codeforces Round #251 (Div. 2) 4
111 Mountain Scenery Categories Codeforces Codeforces Round #134 (Div. 2) 4
112 Hometask Categories Codeforces Codeforces Round #131 (Div. 2) 4
113 Three Logos Categories Codeforces Codeforces Round #322 (Div. 2) 4
114 Fish Weight Categories Codeforces Codeforces Round #180 (Div. 1) & Codeforces Round #180 (Div. 2) 4
115 Promocodes with Mistakes Categories Codeforces VK Cup 2016 - Qualification Round 1 4
116 Toy Sum Categories Codeforces Codeforces Round #238 (Div. 2) & Codeforces Round #238 (Div. 1) 4
117 Little Frog Categories Codeforces Codeforces Beta Round #49 (Div. 2) 4
118 Lucky Permutation Categories Codeforces Codeforces Round #176 (Div. 1) & Codeforces Round #176 (Div. 2) 4
119 Amity Assessment Categories Codeforces CROC 2016 - Elimination Round 4
120 Magic, Wizardry and Wonders Categories Codeforces Codeforces Round #143 (Div. 2) 4
121 The Closest Pair Categories Codeforces Codeforces Round #185 (Div. 1) & Codeforces Round #185 (Div. 2) 4
122 Home Numbers Categories Codeforces VK Cup 2016 - Qualification Round 2 4
123 ZgukistringZ Categories Codeforces Codeforces Round #307 (Div. 2) 4
124 Mysterious numbers - 1 Categories Codeforces April Fools Day Contest 4
125 Lazy Student Categories Codeforces Codeforces Round #335 (Div. 1) & Codeforces Round #335 (Div. 2) 4
126 Weird Chess Categories Codeforces Codeforces Round #300 4
127 Plate Game Categories Codeforces Codeforces Round #124 (Div. 2) 4
128 Drazil and Tiles Categories Codeforces Codeforces Round #292 (Div. 2) & Codeforces Round #292 (Div. 1) 4
129 Dreamoon and Sets Categories Codeforces Codeforces Round #272 (Div. 2) & Codeforces Round #272 (Div. 1) 4
130 Harmony Analysis Categories Codeforces Codeforces Round #337 (Div. 2) 4
131 Ciel the Commander Categories Codeforces Codeforces Round #190 (Div. 1) & Codeforces Round #190 (Div. 2) 4
132 Secret Categories Codeforces Codeforces Round #166 (Div. 2) 4
133 Little Artem and Dance Categories Codeforces VK Cup 2016 - Round 2 4
134 Marco and GCD Sequence Categories Codeforces Codeforces Round #447 (Div. 2) 4
135 Strange Addition Categories Codeforces Codeforces Round #184 (Div. 2) 4
136 Rebus Categories Codeforces Codeforces Round #347 (Div. 1) & Codeforces Round #347 (Div. 2) 4
137 Parity Game Categories Codeforces Codeforces Round #180 (Div. 1) & Codeforces Round #180 (Div. 2) 4
138 Island Puzzle Categories Codeforces 8VC Venture Cup 2016 - Final Round (Div. 1 Edition) & 8VC Venture Cup 2016 - Final Round (Div. 2 Edition) 4
139 Alice, Bob, Two Teams Categories Codeforces Educational Codeforces Round 9 4
140 Pasha and Hamsters Categories Codeforces Coder-Strike 2014 - Finals (online edition, Div. 2) 4
141 Tree Requests Categories Codeforces Codeforces Round #316 (Div. 2) 4
142 Terse princess Categories Codeforces Codeforces Round #105 (Div. 2) 5
143 Find Color Categories Codeforces Codeforces Beta Round #39 5
144 Points on Plane Categories Codeforces Codeforces Round #319 (Div. 1) & Codeforces Round #319 (Div. 2) 5
145 Four Segments Categories Codeforces Codeforces Beta Round #14 (Div. 2) 5
146 Simple Subset Categories Codeforces Educational Codeforces Round 12 5
147 Queue Categories Codeforces Codeforces Round #101 (Div. 2) 5
148 Unordered Subsequence Categories Codeforces Codeforces Beta Round #27 (Codeforces format, Div. 2) 5
149 4-point polyline Categories Codeforces MemSQL Start[c]UP 2.0 - Round 1 5
150 Optimal Number Permutation Categories Codeforces Educational Codeforces Round 7 5
151 Candy Boxes Categories Codeforces Codeforces Round #278 (Div. 2) 5
152 Obsession with Robots Categories Codeforces Codeforces Beta Round #8 5
153 Clear Symmetry Categories Codeforces Codeforces Round #127 (Div. 1) & Codeforces Round #127 (Div. 2) 5
154 Timofey and rectangles Categories Codeforces Codeforces Round #395 (Div. 1) & Codeforces Round #395 (Div. 2) 5
155 Discounts Categories Codeforces VK Cup 2012 Round 1 5
156 Handshakes Categories Codeforces Codeforces Round #298 (Div. 2) 5
157 Beauty Pageant Categories Codeforces Codeforces Round #151 (Div. 2) 5
158 Block Tower Categories Codeforces Codeforces Round #191 (Div. 2) 5
159 Stammering Aliens Categories UVA 5
160 Convex Shape Categories Codeforces Codeforces Round #168 (Div. 2) 5
161 Maxim and Array Categories Codeforces Codeforces Round #374 (Div. 2) 5
162 Two Heaps Categories Codeforces Codeforces Round #205 (Div. 2) 5
163 Cycles Categories Codeforces Codeforces Round #144 (Div. 1) & Codeforces Round #144 (Div. 2) 5
164 Complete The Graph Categories Codeforces Codeforces Round #372 (Div. 1) & Codeforces Round #372 (Div. 2) 5
165 Lucky Number 2 Categories Codeforces Codeforces Round #104 (Div. 1) & Codeforces Round #104 (Div. 2) 5
166 Points and Segments (easy) Categories Codeforces Codeforces Round #245 (Div. 2) 5
167 Help General Categories Codeforces Codeforces Round #102 (Div. 1) & Codeforces Round #102 (Div. 2) 5
168 Queue Categories Codeforces Codeforces Round #205 (Div. 2) 5
169 Tablecity Categories Codeforces Bubble Cup 8 - Finals [Online Mirror] 5
170 Gluttony Categories Codeforces Codeforces Round #446 (Div. 1) & Codeforces Round #446 (Div. 2) 5
171 Kyoya and Permutation Categories Codeforces Codeforces Round #309 (Div. 1) & Codeforces Round #309 (Div. 2) 5
172 Fox and Minimal path Categories Codeforces Codeforces Round #228 (Div. 1) & Codeforces Round #228 (Div. 2) 5
173 Sets Categories Codeforces Yandex.Algorithm 2011 Qualification 2 5
174 Correcting Mistakes Categories Codeforces VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) 5
175 Restoring Table Categories Codeforces CROC-MBTU 2012, Elimination Round (ACM-ICPC) 5
176 Petya and His Friends Categories Codeforces Codeforces Beta Round #61 (Div. 2) 5
177 Suspects Categories Codeforces Codeforces Round #110 (Div. 1) & Codeforces Round #110 (Div. 2) 5
178 Domino Categories Codeforces Yandex.Algorithm 2011 Round 1 5
179 Not Wool Sequences Categories Codeforces Codeforces Round #148 (Div. 1) & Codeforces Round #148 (Div. 2) 5
180 Searching Rectangles Categories Codeforces Codeforces Round #371 (Div. 1) & Codeforces Round #371 (Div. 2) 6
181 Mittens Categories Codeforces Codeforces Round #217 (Div. 2) 6
182 String Categories Codeforces Codeforces Beta Round #94 (Div. 1 Only) & Codeforces Beta Round #94 (Div. 2 Only) 6
183 Below the Diagonal Categories Codeforces Codeforces Round #163 (Div. 2) 6
184 Brackets in Implications Categories Codeforces Codeforces Round #306 (Div. 2) 6
185 3-cycles Categories Codeforces Codeforces Beta Round #40 (Div. 2) 6
186 Banana Categories Codeforces MemSQL start[c]up Round 2 - online version 6
187 Compartments Categories Codeforces Codeforces Round #207 (Div. 1) & Codeforces Round #207 (Div. 2) 6
188 Party Categories Codeforces Codeforces Beta Round #23 6
189 Arpa’s overnight party and Mehrdad’s silent entering Categories Codeforces Codeforces Round #383 (Div. 1) & Codeforces Round #383 (Div. 2) 6
190 Ant on the Tree Categories Codeforces Codeforces Beta Round #29 (Div. 2, Codeforces format) 6
191 Little Pony and Summer Sun Celebration Categories Codeforces Codeforces Round #259 (Div. 1) & Codeforces Round #259 (Div. 2) 6
192 Leha and another game about graph Categories Codeforces Codeforces Round #429 (Div. 1) & Codeforces Round #429 (Div. 2) 6
193 Palindrome Categories Codeforces MemSQL start[c]up Round 2 - online version 6
194 Flawed Flow Categories Codeforces Codeforces Round #165 (Div. 1) & Codeforces Round #165 (Div. 2) 6
195 Dispute Categories Codeforces Codeforces Round #149 (Div. 2) 6
196 Vladik and Favorite Game Categories Codeforces Codeforces Round #416 (Div. 2) 6
197 International Olympiad Categories Codeforces CROC 2016 - Final Round [Private, For Onsite Finalists Only] 6
198 Mike and distribution Categories Codeforces Codeforces Round #410 (Div. 2) 6
199 Looksery Party Categories Codeforces Looksery Cup 2015 6
200 Karen and Test Categories Codeforces Codeforces Round #419 (Div. 1) & Codeforces Round #419 (Div. 2) 6
201 Anton and Ira Categories Codeforces Codeforces Round #324 (Div. 2) 6
202 Invariance of Tree Categories Codeforces Codeforces Round #319 (Div. 1) & Codeforces Round #319 (Div. 2) 6
203 Rooter's Song Categories Codeforces Codeforces Round #431 (Div. 1) & Codeforces Round #431 (Div. 2) 6
204 Jzzhu and Apples Categories Codeforces Codeforces Round #257 (Div. 1) & Codeforces Round #257 (Div. 2) 6
205 Mathematical Analysis Rocks! Categories Codeforces Codeforces Round #116 (Div. 2, ACM-ICPC Rules) 6
206 Zero-One Categories Codeforces Codeforces Beta Round #97 (Div. 1) & Codeforces Beta Round #97 (Div. 2) 6
207 Practice Categories Codeforces Codeforces Round #145 (Div. 2, ACM-ICPC Rules) & Codeforces Round #145 (Div. 1, ACM-ICPC Rules) 6
208 Dima and Containers Categories Codeforces Codeforces Round #208 (Div. 2) 6
209 Prefix Product Sequence Categories Codeforces Codeforces Round #278 (Div. 1) & Codeforces Round #278 (Div. 2) 6
210 Mahmoud and a xor trip Categories Codeforces Codeforces Round #396 (Div. 2) 6
211 Little Victor and Set Categories Codeforces Codeforces Round #262 (Div. 2) 7
212 Russian Roulette Categories Codeforces Codeforces Beta Round #80 (Div. 1 Only) & Codeforces Beta Round #80 (Div. 2 Only) 7
213 Square Root of Permutation Categories Codeforces Educational Codeforces Round 4 7
214 Dima and Horses Categories Codeforces Codeforces Round #167 (Div. 2) & Codeforces Round #167 (Div. 1) 7
215 Before Exam Categories Codeforces Codeforces Beta Round #90 7
216 Vladik and chat Categories Codeforces Codeforces Round #390 (Div. 2) 7
217 Wrong Floyd Categories Codeforces Codeforces Round #203 (Div. 2) 7
218 Black and White Tree Categories Codeforces Codeforces Round #158 (Div. 2) 7
219 Boring Partition Categories Codeforces Codeforces Round #148 (Div. 1) & Codeforces Round #148 (Div. 2) 7
220 Numbers Categories Codeforces Codeforces Beta Round #94 (Div. 1 Only) 7
221 Necklace Categories Codeforces Codeforces Round #339 (Div. 1) & Codeforces Round #339 (Div. 2) 7
222 Splitting the Uniqueness Categories Codeforces Codeforces Round #180 (Div. 1) & Codeforces Round #180 (Div. 2) 7
223 Hobbits' Party Categories Codeforces Codeforces Testing Round #2 7
224 Guess the Tree Categories Codeforces Codeforces Round #245 (Div. 1) & Codeforces Round #245 (Div. 2) 7
225 Maxim and Matrix Categories Codeforces Codeforces Round #160 (Div. 1) & Codeforces Round #160 (Div. 2) 7
226 Bear and Drawing Categories Codeforces Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 1) & Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) 7
227 Kamal-ol-molk's Painting Categories Codeforces Bayan 2015 Contest Warm Up 7
228 Valera and Swaps Categories Codeforces Codeforces Round #252 (Div. 2) 7
229 Axis Walking Categories Codeforces Codeforces Round #191 (Div. 2) 7
230 Set of Points Categories Codeforces Codeforces Round #170 (Div. 1) & Codeforces Round #170 (Div. 2) 7
231 Hack it! Categories Codeforces Codeforces Round #268 (Div. 1) & Codeforces Round #268 (Div. 2) 7
232 Restoring Numbers Categories Codeforces Codeforces Round #289 (Div. 2, ACM ICPC Rules) 7
233 The table Categories Codeforces Codeforces Round #140 (Div. 1) 7
234 Square Table Categories Codeforces RCC 2014 Warmup (Div. 2) & RCC 2014 Warmup (Div. 1) 7
235 Sign on Fence Categories Codeforces Codeforces Round #276 (Div. 1) 7
236 Data Center Drama Categories Codeforces Codeforces Round #296 (Div. 2) & Codeforces Round #296 (Div. 1) 7
237 Lucky Number Representation Categories Codeforces Codeforces Round #206 (Div. 1) 7
238 Journey Categories Codeforces Codeforces Beta Round #42 (Div. 2) 7
239 Idempotent functions Categories Codeforces VK Cup 2015 - Round 3 (unofficial online mirror, Div. 1 only) 7
240 Graph Reconstruction Categories Codeforces Codeforces Round #192 (Div. 1) & Codeforces Round #192 (Div. 2) 7
241 Graph Cutting Categories Codeforces Codeforces Round #238 (Div. 2) & Codeforces Round #238 (Div. 1) 7
242 Disposition Categories Codeforces Codeforces Beta Round #46 (Div. 2) 7
243 Finals in arithmetic Categories Codeforces Codeforces Round #342 (Div. 2) 8
244 Triminoes Categories Codeforces School Team Contest #2 (Winter Computer School 2010/11) 8
245 Headquarters Categories Codeforces Croc Champ 2012 - Final 8
246 Dominoes Categories Codeforces Codeforces Round #231 (Div. 2) 8
247 Biathlon Track Categories Codeforces Codeforces Round #242 (Div. 2) 8
248 CNF 2 Categories Codeforces Codeforces Round #317 [AimFund Thanks-Round] (Div. 1) & Codeforces Round #317 [AimFund Thanks-Round] (Div. 2) 8
249 Balance Categories Codeforces Codeforces Round #188 (Div. 1) & Codeforces Round #188 (Div. 2) 8
250 Broken Monitor Categories Codeforces Codeforces Round #217 (Div. 2) 8
251 Director Categories Codeforces School Team Contest #3 (Winter Computer School 2010/11) 8
252 Hamming Distance Categories Codeforces Codeforces Round #122 (Div. 1) & Codeforces Round #122 (Div. 2) 8
253 Clearing Up Categories Codeforces Codeforces Round #101 (Div. 2) 8
254 Challenging Balloons Categories Codeforces Bayan 2012-2013 Elimination Round (ACM ICPC Rules, English statements) 8
255 Team Arrangement Categories Codeforces Codeforces Beta Round #55 (Div. 2) 8
256 Greedy Change Categories Codeforces Codeforces Beta Round #10 8
257 Safe cracking Categories Codeforces Codeforces Beta Round #41 8
258 Ladies' Shop Categories Codeforces Codeforces Round #176 (Div. 1) 8
259 Constants in the language of Shakespeare Categories Codeforces Codeforces Beta Round #96 (Div. 1) 8
260 Yaroslav and Algorithm Categories Codeforces Codeforces Round #182 (Div. 1) & Codeforces Round #182 (Div. 2) 8
261 Polycarp's Picture Gallery Categories Codeforces Yandex.Algorithm Open 2011 Qualification 1 8
262 Bags and Coins Categories Codeforces Codeforces Round #207 (Div. 1) 8
263 Lucky Sorting Categories Codeforces Codeforces Beta Round #84 (Div. 1 Only) 8
264 Planting Trees Categories Codeforces School Team Contest #3 (Winter Computer School 2010/11) 8
265 Oranges and Apples Categories Codeforces Codeforces Beta Round #23 8
266 Tricky and Clever Password Categories Codeforces Codeforces Beta Round #30 (Codeforces format) 8
267 Superset Categories Codeforces Yandex.Algorithm 2011 Finals 8
268 Dividing Island Categories Codeforces Codeforces Beta Round #59 (Div. 2) 8
269 Trails and Glades Categories Codeforces VK Cup 2012 Finals, Practice Session 8
270 Swaps Categories Codeforces Codeforces Testing Round #3 8
271 Playing with Superglue Categories Codeforces Croc Champ 2012 - Round 2 8
272 Three Swaps Categories Codeforces Codeforces Round #197 (Div. 2) 8
273 Parquet Categories Codeforces Codeforces Beta Round #26 (Codeforces format) 8
274 Ilya and Two Numbers Categories Codeforces Codeforces Round #186 (Div. 2) 8
275 E-reader Display Categories Codeforces Codeforces Beta Round #93 (Div. 1 Only) & Codeforces Beta Round #93 (Div. 2 Only) 8
276 Square Tiling Categories Codeforces Codeforces Round #246 (Div. 2) 8
277 Black-and-White Cube Categories Codeforces Testing Round #7 8
278 Start of the session Categories Codeforces Codeforces Beta Round #12 (Div 2 Only) 8
279 Inna and Sweet Matrix Categories Codeforces Codeforces Round #229 (Div. 2) 8
280 Three Horses Categories Codeforces Codeforces Round #166 (Div. 2) 8
281 Double Knapsack Categories Codeforces Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) 8
282 Merging Two Decks Categories Codeforces Codeforces Round #145 (Div. 2, ACM-ICPC Rules) & Codeforces Round #145 (Div. 1, ACM-ICPC Rules) 8
283 Beautiful Function Categories Codeforces Codeforces Round #329 (Div. 2) 9
284 Berland Local Positioning System Categories Codeforces Codeforces Round #298 (Div. 2) 9
285 Lucky Tickets Categories Codeforces Codeforces Round #194 (Div. 1) & Codeforces Round #194 (Div. 2) 9
286 Tournament-graph Categories Codeforces Testing Round #7 9
287 Replicating Processes Categories Codeforces VK Cup 2015 - Finals, online mirror 9
288 Parquet Re-laying Categories Codeforces Codeforces Round #402 (Div. 1) 9
289 The Evil Temple and the Moving Rocks Categories Codeforces Codeforces Round #192 (Div. 1) 9
290 Design Tutorial: Change the Goal Categories Codeforces Codeforces Round #270 9
291 Tree and Array Categories Codeforces Codeforces Round #233 (Div. 1) & Codeforces Round #233 (Div. 2) 9
292 Constrained Tree Categories Codeforces Rockethon 2015 9
293 Grocer's Problem Categories Codeforces Codeforces Beta Round #75 (Div. 1 Only) 9
294 Tetris revisited Categories Codeforces Yandex.Algorithm 2011 Round 2 9
295 Pixels Categories Codeforces VK Cup 2012 Finals, Practice Session 9
296 Deputies Categories Codeforces Croc Champ 2012 - Round 1 9
297 Mike and code of a permutation Categories Codeforces Codeforces Round #410 (Div. 2) 9
298 Color the Carpet Categories Codeforces Codeforces Round #180 (Div. 1) 9
299 Two progressions Categories Codeforces Codeforces Testing Round #2 9
300 Strange town Categories Codeforces Codeforces Beta Round #41 9
301 Two Paths Categories Codeforces Codeforces Beta Round #36 9
302 Stars Categories Codeforces Codeforces Round #131 (Div. 1) 9
303 Multithreading Categories Codeforces Codeforces Beta Round #26 (Codeforces format) 9
304 Walking! Categories Codeforces Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] 9
305 Mister B and Flight to the Moon Categories Codeforces Codeforces Round #421 (Div. 1) 9
306 Fox And Polygon Categories Codeforces Codeforces Round #290 (Div. 1) 9
307 Candies Game Categories Codeforces Codeforces Round #198 (Div. 1) 9
308 Suns and Rays Categories Codeforces ABBYY Cup 3.0 10
309 Create a Maze Categories Codeforces Codeforces Round #372 (Div. 1) 10
310 Shift It! Categories Codeforces Codeforces Beta Round #68 10
311 Polygon Categories Codeforces Testing Round #6 10
312 Listening to Music Categories Codeforces Codeforces Round #302 (Div. 1) 10
313 Finding lines Categories Codeforces Codeforces Round #407 (Div. 1) 10
314 Restoring Map Categories Codeforces VK Cup 2015 - Finals, online mirror 10
315 Dynamic Programming Categories A2 Online Judge 10
316 Princess and Her Shadow Categories Codeforces Codeforces Round #188 (Div. 1) 10
317 Chess Championship Categories Codeforces Codeforces Round #382 (Div. 1) 10
318 Ants on a Circle Categories Codeforces Educational Codeforces Round 10 10
319 Flow Optimality Categories Codeforces MemSQL Start[c]UP 2.0 - Round 2 10
320 Deja Vu Categories Codeforces ABBYY Cup 3.0 - Finals (online version) 10
321 Karen and Neighborhood Categories Codeforces Codeforces Round #419 (Div. 1) 10
322 HQ Categories Codeforces April Fools Day Contest 2013 10
323 Berserk Robot Categories Codeforces Codeforces Round #300 10
324 Doe Graphs Categories Codeforces Codeforces Round #144 (Div. 1) & Codeforces Round #144 (Div. 2) 10
325 Black and White Categories Codeforces School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round #45 (ACM-ICPC Rules) 10
326 Cube Snake Categories Codeforces Codeforces Round #125 (Div. 1) 10
327 Perpetual Motion Machine Categories Codeforces Codeforces Round #424 (Div. 1, rated, based on VK Cup Finals) 10
328 Help Monks Categories Codeforces Codeforces Beta Round #78 (Div. 1 Only) 10
329 Deja Vu Categories Codeforces ABBYY Cup 3.0 - Finals (online version) 10
330 Design Tutorial: Learn from a Game Categories Codeforces Codeforces Round #270 10
331 New Year and Forgotten Tree Categories Codeforces Good Bye 2015 10