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