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Codeforces Div. 2 - D Problems problems
Problem Name Online Judge Year Contest Difficulty Level
1 Longest Common Subsequence Categories UVA 1
2 Flowers Categories Codeforces Codeforces Round #271 (Div. 2) 1
3 Coffee Central Categories Live Archive 2011 World Finals - Orlando 1
4 Tetrahedron Categories Codeforces Codeforces Round #113 (Div. 2) 1
5 Mashmokh and ACM Categories Codeforces Codeforces Round #240 (Div. 1) & Codeforces Round #240 (Div. 2) 1
6 Xenia and Bit Operations Categories Codeforces Codeforces Round #197 (Div. 2) 1
7 Queue Categories Codeforces Codeforces Round #303 (Div. 2) 1
8 Password Categories Codeforces Codeforces Beta Round #93 (Div. 1 Only) & Codeforces Beta Round #93 (Div. 2 Only) 2
9 Minimum number of steps Categories Codeforces Codeforces Round #411 (Div. 1) & Codeforces Round #411 (Div. 2) 2
10 Taxes Categories Codeforces Codeforces Round #382 (Div. 2) & Codeforces Round #382 (Div. 1) 2
11 Alternating Current Categories Codeforces Codeforces Round #200 (Div. 1) & Codeforces Round #200 (Div. 2) 2
12 Multiplication Table Categories Codeforces Codeforces Round #256 (Div. 2) 2
13 Dima and Lisa Categories Codeforces Codeforces Round #324 (Div. 2) 2
14 Prizes, Prizes, more Prizes Categories Codeforces Codeforces Round #130 (Div. 2) 2
15 Soldier and Number Game Categories Codeforces Codeforces Round #304 (Div. 2) 2
16 Equivalent Strings Categories Codeforces Codeforces Round #313 (Div. 1) & Codeforces Round #313 (Div. 2) 2
17 Magic Powder - 2 Categories Codeforces Codeforces Round #350 (Div. 2) 2
18 String Game Categories Codeforces Codeforces Round #402 (Div. 1) & Codeforces Round #402 (Div. 2) 2
19 Vasya and Chess Categories Codeforces Codeforces Round #281 (Div. 2) 2
20 Caesar's Legions Categories Codeforces Codeforces Beta Round #89 (Div. 2) 2
21 Magic Powder - 1 Categories Codeforces Codeforces Round #350 (Div. 2) 2
22 Kostya the Sculptor Categories Codeforces Codeforces Round #378 (Div. 2) 3
23 Greenhouse Effect Categories Codeforces Codeforces Round #165 (Div. 1) & Codeforces Round #165 (Div. 2) 3
24 Ilya and Escalator Categories Codeforces Codeforces Round #293 (Div. 2) 3
25 Fix a Tree Categories Codeforces Codeforces Round #363 (Div. 1) & Codeforces Round #363 (Div. 2) 3
26 Colorful Graph Categories Codeforces Codeforces Round #151 (Div. 2) 3
27 Sorting the Coins Categories Codeforces Codeforces Round #441 (Div. 1, by Moscow Team Olympiad) & Codeforces Round #441 (Div. 2, by Moscow Team Olympiad) 3
28 Maximum Value Categories Codeforces Codeforces Round #276 (Div. 1) & Codeforces Round #276 (Div. 2) 3
29 Kefa and Dishes Categories Codeforces Codeforces Round #321 (Div. 2) 3
30 Polyline Categories Codeforces Codeforces Round #340 (Div. 2) 3
31 Greg and Graph Categories Codeforces Codeforces Round #179 (Div. 1) & Codeforces Round #179 (Div. 2) 3
32 Little Girl and Maximum XOR Categories Codeforces Codeforces Round #169 (Div. 2) 3
33 Make a Permutation! Categories Codeforces Codeforces Round #436 (Div. 2) 3
34 Little Elephant and Array Categories Codeforces Codeforces Round #136 (Div. 1) & Codeforces Round #136 (Div. 2) 3
35 Pashmak and Parmida's problem Categories Codeforces Codeforces Round #261 (Div. 2) 3
36 Vasiliy's Multiset Categories Codeforces Codeforces Round #367 (Div. 2) 3
37 Exams Categories Codeforces Codeforces Round #377 (Div. 2) 3
38 Green and Black Tea Categories Codeforces Codeforces Round #386 (Div. 2) 3
39 Biridian Forest Categories Codeforces Codeforces Round #192 (Div. 1) & Codeforces Round #192 (Div. 2) 3
40 Interesting Array Categories Codeforces Codeforces Round #275 (Div. 1) & Codeforces Round #275 (Div. 2) 3
41 "Or" Game Categories Codeforces Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] & Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] 3
42 Choosing Capital for Treeland Categories Codeforces Codeforces Round #135 (Div. 2) 3
43 Mike and Feet Categories Codeforces Codeforces Round #305 (Div. 1) & Codeforces Round #305 (Div. 2) 3
44 Long Jumps Categories Codeforces Codeforces Round #274 (Div. 2) & Codeforces Round #274 (Div. 1) 3
45 Gargari and Permutations Categories Codeforces Codeforces Round #264 (Div. 2) 3
46 Love Rescue Categories Codeforces Codeforces Round #464 (Div. 2) 3
47 Bubble Sort Graph Categories Codeforces Codeforces Round #198 (Div. 2) & Codeforces Round #198 (Div. 1) 3
48 Lakes in Berland Categories Codeforces Codeforces Round #375 (Div. 2) 3
49 Good Sequences Categories Codeforces Codeforces Round #162 (Div. 1) & Codeforces Round #162 (Div. 2) 3
50 Unbearable Controversy of Being Categories Codeforces Codeforces Round #277.5 (Div. 2) 3
51 Working out Categories Codeforces Codeforces Round #245 (Div. 1) & Codeforces Round #245 (Div. 2) 3
52 Bear and Blocks Categories Codeforces Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 1) & Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) 3
53 Anton and Chess Categories Codeforces Codeforces Round #379 (Div. 2) 3
54 Good Substrings Categories Codeforces Codeforces Round #166 (Div. 2) 3
55 A and B and Interesting Substrings Categories Codeforces Codeforces Round #294 (Div. 2) 3
56 Long Path Categories Codeforces Codeforces Round #239 (Div. 1) & Codeforces Round #239 (Div. 2) 3
57 Bicycle Race Categories Codeforces Codeforces Round #346 (Div. 2) 3
58 Zuma Categories Codeforces Codeforces Round #336 (Div. 1) & Codeforces Round #336 (Div. 2) 3
59 Arpa's weak amphitheater and Mehrdad's valuable Hoses Categories Codeforces Codeforces Round #383 (Div. 1) & Codeforces Round #383 (Div. 2) 3
60 Cloud of Hashtags Categories Codeforces Codeforces Round #401 (Div. 2) 3
61 Common Divisors Categories Codeforces Codeforces Round #117 (Div. 2) 3
62 Andrey and Problem Categories Codeforces Codeforces Round #253 (Div. 1) & Codeforces Round #253 (Div. 2) 3
63 Mysterious Present Categories Codeforces Codeforces Beta Round #4 (Div. 2 Only) 3
64 Dreamoon and Sets Categories Codeforces Codeforces Round #272 (Div. 2) & Codeforces Round #272 (Div. 1) 4
65 Vanya and Computer Game Categories Codeforces Codeforces Round #280 (Div. 2) 4
66 Chloe and pleasant prizes Categories Codeforces Codeforces Round #384 (Div. 2) 4
67 Alarm Clock Categories Codeforces Codeforces Round #451 (Div. 2) 4
68 My pretty girl Noora Categories Codeforces Codeforces Round #422 (Div. 2) 4
69 Book of Evil Categories Codeforces Codeforces Round #196 (Div. 2) & Codeforces Round #196 (Div. 1) 4
70 Toy Sum Categories Codeforces Codeforces Round #238 (Div. 2) & Codeforces Round #238 (Div. 1) 4
71 Image Preview Categories Codeforces Codeforces Round #345 (Div. 1) & Codeforces Round #345 (Div. 2) 4
72 Lazy Student Categories Codeforces Codeforces Round #335 (Div. 1) & Codeforces Round #335 (Div. 2) 4
73 Jzzhu and Cities Categories Codeforces Codeforces Round #257 (Div. 1) & Codeforces Round #257 (Div. 2) 4
74 Destroying Roads Categories Codeforces Codeforces Round #302 (Div. 1) & Codeforces Round #302 (Div. 2) 4
75 Tree Construction Categories Codeforces Codeforces Round #353 (Div. 2) 4
76 Dasha and Very Difficult Problem Categories Codeforces Codeforces Round #394 (Div. 2) 4
77 Palindrome pairs Categories Codeforces VK Cup 2012 Qualification Round 2 4
78 Quantity of Strings Categories Codeforces Codeforces Round #107 (Div. 1) & Codeforces Round #107 (Div. 2) 4
79 The Door Problem Categories Codeforces ICM Technex 2017 and Codeforces Round #400 (Div. 1 + Div. 2, combined) 4
80 Road Map Categories Codeforces Codeforces Beta Round #34 (Div. 2) 4
81 Pair of Numbers Categories Codeforces Codeforces Round #209 (Div. 2) 4
82 Tree Requests Categories Codeforces Codeforces Round #316 (Div. 2) 4
83 Regular Bridge Categories Codeforces Codeforces Round #306 (Div. 2) 4
84 Phillip and Trains Categories Codeforces Codeforces Round #325 (Div. 1) & Codeforces Round #325 (Div. 2) 4
85 Cow Program Categories Codeforces Codeforces Round #174 (Div. 1) & Codeforces Round #174 (Div. 2) 4
86 High Load Categories Codeforces Codeforces Round #423 (Div. 1, rated, based on VK Cup Finals) & Codeforces Round #423 (Div. 2, rated, based on VK Cup Finals) 4
87 Vessels Categories Codeforces Codeforces Round #218 (Div. 2) 4
88 Drazil and Tiles Categories Codeforces Codeforces Round #292 (Div. 2) & Codeforces Round #292 (Div. 1) 4
89 Bad Luck Island Categories Codeforces Codeforces Round #301 (Div. 2) 4
90 Puzzles Categories Codeforces Codeforces Round #362 (Div. 1) & Codeforces Round #362 (Div. 2) 4
91 Robin Hood Categories Codeforces Codeforces Round #352 (Div. 1) & Codeforces Round #352 (Div. 2) 4
92 Case of Fugitive Categories Codeforces Codeforces Round #310 (Div. 1) & Codeforces Round #310 (Div. 2) 4
93 Tennis Game Categories Codeforces Codeforces Round #283 (Div. 2) & Codeforces Round #283 (Div. 1) 4
94 Alyona and a tree Categories Codeforces Codeforces Round #381 (Div. 1) & Codeforces Round #381 (Div. 2) 4
95 Zero Tree Categories Codeforces Codeforces Round #168 (Div. 1) & Codeforces Round #168 (Div. 2) 4
96 Multipliers Categories Codeforces Codeforces Round #338 (Div. 2) 4
97 Devu and his Brother Categories Codeforces Codeforces Round #251 (Div. 2) 4
98 Clique Problem Categories Codeforces Codeforces Round #296 (Div. 2) & Codeforces Round #296 (Div. 1) 4
99 Little Artem and Dance Categories Codeforces VK Cup 2016 - Round 2 4
100 Design Tutorial: Inverse the Problem Categories Codeforces Codeforces Round #270 4
101 A Lot of Games Categories Codeforces Codeforces Round #260 (Div. 1) & Codeforces Round #260 (Div. 2) 4
102 One-Dimensional Battle Ships Categories Codeforces Codeforces Round #Pi (Div. 2) 4
103 Office Keys Categories Codeforces Codeforces Round #424 (Div. 1, rated, based on VK Cup Finals) & Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) 4
104 Prefixes and Suffixes Categories Codeforces Codeforces Round #246 (Div. 2) 4
105 Babaei and Birthday Cake Categories Codeforces Codeforces Round #343 (Div. 2) 4
106 DZY Loves Modification Categories Codeforces Codeforces Round #255 (Div. 1) & Codeforces Round #255 (Div. 2) 4
107 Weird Chess Categories Codeforces Codeforces Round #300 4
108 Bear and Two Paths Categories Codeforces VK Cup 2016 - Round 3 4
109 Innokenty and a Football League Categories Codeforces ?????????? 2017 - ????? (?????? ??? ??????-??????????) 4
110 Remainders Game Categories Codeforces Codeforces Round #360 (Div. 1) & Codeforces Round #360 (Div. 2) 4
111 Polo the Penguin and Houses Categories Codeforces Codeforces Round #177 (Div. 1) 4
112 Sea Battle Categories Codeforces Technocup 2017 - Elimination Round 2 4
113 Roads not only in Berland Categories Codeforces Codeforces Beta Round #25 (Div. 2 Only) 4
114 Bag of mice Categories Codeforces Codeforces Round #105 (Div. 2) 4
115 Subway Categories Codeforces Codeforces Beta Round #95 (Div. 2) 4
116 The Child and Zoo Categories Codeforces Codeforces Round #250 (Div. 2) & Codeforces Round #250 (Div. 1) 4
117 MUH and Cube Walls Categories Codeforces Codeforces Round #269 (Div. 2) 4
118 Little Pony and Harmony Chest Categories Codeforces Codeforces Round #259 (Div. 1) & Codeforces Round #259 (Div. 2) 4
119 Volatile Kite Categories Codeforces VK Cup 2017 - Round 2 4
120 Magic Box Categories Codeforces Codeforces Round #143 (Div. 2) 4
121 Colliders Categories Codeforces Codeforces Round #109 (Div. 1) & Codeforces Round #109 (Div. 2) 4
122 Little Elephant and Cards Categories Codeforces Codeforces Round #129 (Div. 1) & Codeforces Round #129 (Div. 2) 4
123 Spongebob and Squares Categories Codeforces Codeforces Round #332 (Div. 2) 4
124 Eternal Victory Categories Codeforces Codeforces Beta Round #57 (Div. 2) 4
125 Tavas and Malekas Categories Codeforces Codeforces Round #299 (Div. 2) & Codeforces Round #299 (Div. 1) 4
126 Petya and Divisors Categories Codeforces Codeforces Beta Round #85 (Div. 1 Only) & Codeforces Beta Round #85 (Div. 2 Only) 4
127 Maximum Submatrix 2 Categories Codeforces Codeforces Round #221 (Div. 1) & Codeforces Round #221 (Div. 2) 4
128 Queue Categories Codeforces Codeforces Beta Round #75 (Div. 1 Only) & Codeforces Beta Round #75 (Div. 2 Only) 4
129 Red-Green Towers Categories Codeforces Codeforces Round #273 (Div. 2) 4
130 Appleman and Tree Categories Codeforces Codeforces Round #263 (Div. 1) & Codeforces Round #263 (Div. 2) 4
131 Vanya and Triangles Categories Codeforces Codeforces Round #308 (Div. 2) 4
132 Directed Roads Categories Codeforces Codeforces Round #369 (Div. 2) 4
133 Fox And Jumping Categories Codeforces Codeforces Round #290 (Div. 2) & Codeforces Round #290 (Div. 1) 4
134 Two Sets Categories Codeforces Codeforces Round #268 (Div. 1) & Codeforces Round #268 (Div. 2) 4
135 Count Good Substrings Categories Codeforces Codeforces Round #258 (Div. 2) 4
136 As Fast As Possible Categories Codeforces Codeforces Round #364 (Div. 1) & Codeforces Round #364 (Div. 2) 4
137 Planets Categories Codeforces Codeforces Round #142 (Div. 1) & Codeforces Round #142 (Div. 2) 4
138 Three Logos Categories Codeforces Codeforces Round #322 (Div. 2) 4
139 Travel Card Categories Codeforces 8VC Venture Cup 2017 - Final Round 4
140 Fish Weight Categories Codeforces Codeforces Round #180 (Div. 1) & Codeforces Round #180 (Div. 2) 4
141 Psychos in a Line Categories Codeforces Codeforces Round #189 (Div. 1) & Codeforces Round #189 (Div. 2) 4
142 Levko and Array Categories Codeforces Codeforces Round #210 (Div. 1) & Codeforces Round #210 (Div. 2) 5
143 Minimization Categories Codeforces Codeforces Round #317 [AimFund Thanks-Round] (Div. 1) & Codeforces Round #317 [AimFund Thanks-Round] (Div. 2) 5
144 Persistent Bookcase Categories Codeforces Codeforces Round #368 (Div. 2) 5
145 Alyona and Strings Categories Codeforces Codeforces Round #358 (Div. 2) 5
146 Counting Rectangles is Fun Categories Codeforces Codeforces Round #219 (Div. 1) & Codeforces Round #219 (Div. 2) 5
147 Missile Silos Categories Codeforces Codeforces Round #103 (Div. 2) 5
148 Timofey and rectangles Categories Codeforces Codeforces Round #395 (Div. 1) & Codeforces Round #395 (Div. 2) 5
149 Bear and Tree Jumps Categories Codeforces VK Cup 2017 - Round 1 5
150 Falling Anvils Categories Codeforces Codeforces Beta Round #69 (Div. 1 Only) & Codeforces Beta Round #69 (Div. 2 Only) 5
151 Queue Categories Codeforces Codeforces Round #205 (Div. 2) 5
152 Winter is here Categories Codeforces Codeforces Round #428 (Div. 2) 5
153 Increase Sequence Categories Codeforces Codeforces Round #266 (Div. 2) 5
154 Vitaly and Cycle Categories Codeforces Codeforces Round #311 (Div. 2) 5
155 Rectangle and Square Categories Codeforces Codeforces Beta Round #97 (Div. 1) & Codeforces Beta Round #97 (Div. 2) 5
156 Least Cost Bracket Sequence Categories Codeforces Codeforces Beta Round #3 5
157 Basketball Team Categories Codeforces Codeforces Beta Round #83 (Div. 1 Only) & Codeforces Beta Round #83 (Div. 2 Only) 5
158 Chocolate Categories Codeforces Codeforces Round #279 (Div. 2) 5
159 Help General Categories Codeforces Codeforces Round #102 (Div. 1) & Codeforces Round #102 (Div. 2) 5
160 Fox and Minimal path Categories Codeforces Codeforces Round #228 (Div. 1) & Codeforces Round #228 (Div. 2) 5
161 Moodular Arithmetic Categories Codeforces Codeforces Round #334 (Div. 1) & Codeforces Round #334 (Div. 2) 5
162 Mahmoud and a Dictionary Categories Codeforces Codeforces Round #396 (Div. 2) 5
163 Palindrome Degree Categories Codeforces Codeforces Beta Round #7 5
164 Anton and School - 2 Categories Codeforces Codeforces Round #404 (Div. 2) 5
165 Jeff and Furik Categories Codeforces Codeforces Round #204 (Div. 1) & Codeforces Round #204 (Div. 2) 5
166 Friends and Subsequences Categories Codeforces Codeforces Round #361 (Div. 2) 5
167 Lawnmower Categories Codeforces Codeforces Beta Round #87 (Div. 1 Only) & Codeforces Beta Round #87 (Div. 2 Only) 5
168 Restore Cube Categories Codeforces Codeforces Round #265 (Div. 1) 5
169 Skills Categories Codeforces Codeforces Round #339 (Div. 1) & Codeforces Round #339 (Div. 2) 5
170 Fedor and coupons Categories Codeforces Codeforces Round #390 (Div. 2) 5
171 Mahmoud and Ehab and another array construction task Categories Codeforces Codeforces Round #473 (Div. 2) 5
172 An overnight dance in discotheque Categories Codeforces Codeforces Round #418 (Div. 2) 5
173 Jon and Orbs Categories Codeforces Divide by Zero 2017 and Codeforces Round #399 (Div. 1 + Div. 2, combined) 5
174 Dima and Hares Categories Codeforces Codeforces Round #208 (Div. 2) 5
175 Symmetric and Transitive Categories Codeforces Codeforces Round #315 (Div. 1) & Codeforces Round #315 (Div. 2) 5
176 A Simple Task Categories Codeforces Codeforces Beta Round #11 5
177 Bear and Tower of Cubes Categories Codeforces Codeforces Round #356 (Div. 1) & Codeforces Round #356 (Div. 2) 5
178 Police Stations Categories Codeforces Codeforces Round #408 (Div. 2) 5
179 Lucky Transformation Categories Codeforces Codeforces Beta Round #91 (Div. 1 Only) & Codeforces Beta Round #91 (Div. 2 Only) 5
180 Strip Categories Codeforces Codeforces Round #278 (Div. 2) & Codeforces Round #278 (Div. 1) & Codeforces Round #278 (Div. 2) & Codeforces Round #278 (Div. 1) 5
181 Suspects Categories Codeforces Codeforces Round #110 (Div. 1) & Codeforces Round #110 (Div. 2) 5
182 R2D2 and Droid Army Categories Codeforces Codeforces Round #291 (Div. 2) 5
183 Upgrading Array Categories Codeforces Codeforces Round #236 (Div. 2) & Codeforces Round #236 (Div. 1) 5
184 Lipshitz Sequence Categories Codeforces Codeforces Round #333 (Div. 1) & Codeforces Round #333 (Div. 2) 5
185 Yaroslav and Time Categories Codeforces Codeforces Round #182 (Div. 1) & Codeforces Round #182 (Div. 2) 5
186 Winter Is Coming Categories Codeforces Codeforces Round #387 (Div. 2) 5
187 Field expansion Categories Codeforces Playrix Codescapes Cup (Codeforces Round #413, rated, Div. 1 + Div. 2) 5
188 Volleyball Categories Codeforces Codeforces Beta Round #77 (Div. 1 Only) & Codeforces Beta Round #77 (Div. 2 Only) 5
189 Block Tower Categories Codeforces Codeforces Round #191 (Div. 2) 5
190 Petr# Categories Codeforces Codeforces Beta Round #86 (Div. 1 Only) & Codeforces Beta Round #86 (Div. 2 Only) 5
191 Preparing for the Contest Categories Codeforces Codeforces Round #222 (Div. 1) & Codeforces Round #222 (Div. 2) 5
192 Kyoya and Permutation Categories Codeforces Codeforces Round #309 (Div. 1) & Codeforces Round #309 (Div. 2) 5
193 Complete The Graph Categories Codeforces Codeforces Round #372 (Div. 1) & Codeforces Round #372 (Div. 2) 5
194 Jumping on Walls Categories Codeforces Codeforces Round #125 (Div. 1) & Codeforces Round #125 (Div. 2) 5
195 Obsessive String Categories Codeforces Codeforces Round #282 (Div. 1) & Codeforces Round #282 (Div. 2) 5
196 Super M Categories Codeforces Codeforces Round #328 (Div. 2) 5
197 Dima and Two Sequences Categories Codeforces Codeforces Round #167 (Div. 2) & Codeforces Round #167 (Div. 1) 5
198 Cartons of milk Categories Codeforces Codeforces Round #398 (Div. 2) 5
199 Xenia and Hamming Categories Codeforces Codeforces Round #207 (Div. 1) & Codeforces Round #207 (Div. 2) 5
200 Mishka and Interesting sum Categories Codeforces Codeforces Round #365 (Div. 2) 5
201 Weird journey Categories Codeforces Codeforces Round #407 (Div. 1) & Codeforces Round #407 (Div. 2) 5
202 Maximum Xor Secondary Categories Codeforces Codeforces Round #172 (Div. 1) & Codeforces Round #172 (Div. 2) 5
203 New Year Contest Categories Codeforces Codeforces Round #100 5
204 The Bakery Categories Codeforces Codeforces Round #426 (Div. 1) & Codeforces Round #426 (Div. 2) 5
205 Roman and Numbers Categories Codeforces Codeforces Round #235 (Div. 2) 5
206 Ability To Convert Categories Codeforces Codeforces Round #392 (Div. 2) 5
207 Leaving Auction Categories Codeforces Codeforces Round #388 (Div. 2) 5
208 Ciel and Duel Categories Codeforces Codeforces Round #190 (Div. 1) & Codeforces Round #190 (Div. 2) 5
209 Misha, Grisha and Underground Categories Codeforces Codeforces Round #425 (Div. 2) 5
210 Renting Bikes Categories Codeforces Codeforces Round #211 (Div. 2) 5
211 Two Paths Categories Codeforces Codeforces Beta Round #14 (Div. 2) 5
212 Kay and Snowflake Categories Codeforces Codeforces Round #359 (Div. 1) & Codeforces Round #359 (Div. 2) 5
213 Infinite Maze Categories Codeforces Codeforces Round #124 (Div. 1) & Codeforces Round #124 (Div. 2) 5
214 Chip 'n Dale Rescue Rangers Categories Codeforces Codeforces Round #327 (Div. 1) & Codeforces Round #327 (Div. 2) 5
215 Gluttony Categories Codeforces Codeforces Round #446 (Div. 1) & Codeforces Round #446 (Div. 2) 5
216 Lucky Number 2 Categories Codeforces Codeforces Round #104 (Div. 1) & Codeforces Round #104 (Div. 2) 5
217 Artsem and Saunders Categories Codeforces Codeforces Round #397 by Kaspersky Lab and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 5
218 Petya and His Friends Categories Codeforces Codeforces Beta Round #61 (Div. 2) 5
219 How many trees? Categories Codeforces Codeforces Beta Round #9 (Div. 2 Only) 5
220 Theseus and labyrinth Categories Codeforces Codeforces Round #354 (Div. 2) 5
221 Chips Categories Codeforces Codeforces Round #194 (Div. 1) & Codeforces Round #194 (Div. 2) 5
222 Maxim and Array Categories Codeforces Codeforces Round #374 (Div. 2) 5
223 Cycle in Graph Categories Codeforces Codeforces Round #161 (Div. 2) 5
224 Palindromic characteristics Categories Codeforces Codeforces Round #427 (Div. 2) 5
225 Sereja ans Anagrams Categories Codeforces Codeforces Round #215 (Div. 1) & Codeforces Round #215 (Div. 2) 5
226 Valid Sets Categories Codeforces Codeforces Round #277 (Div. 2) 5
227 Dima and Bacteria Categories Codeforces Codeforces Round #234 (Div. 2) 5
228 Misha and Permutations Summation Categories Codeforces Codeforces Round #285 (Div. 2) & Codeforces Round #285 (Div. 1) 5
229 Olympiad Categories Codeforces Codeforces Round #137 (Div. 2) 5
230 Lucky Common Subsequence Categories Codeforces Codeforces Round #201 (Div. 1) & Codeforces Round #201 (Div. 2) 5
231 Handshakes Categories Codeforces Codeforces Round #298 (Div. 2) 5
232 Lucky Probability Categories Codeforces Codeforces Beta Round #84 (Div. 1 Only) & Codeforces Beta Round #84 (Div. 2 Only) 6
233 GukiZ and Binary Operations Categories Codeforces Codeforces Round #307 (Div. 2) 6
234 Mr. Bender and Square Categories Codeforces Codeforces Round #156 (Div. 2) & Codeforces Round #156 (Div. 1) 6
235 Let's Play Osu! Categories Codeforces Codeforces Round #146 (Div. 1) & Codeforces Round #146 (Div. 2) 6
236 Duff in Beach Categories Codeforces Codeforces Round #326 (Div. 1) & Codeforces Round #326 (Div. 2) 6
237 Permutation Sum Categories Codeforces Codeforces Round #175 (Div. 2) 6
238 Hot Days Categories Codeforces Codeforces Round #132 (Div. 2) 6
239 Buses Categories Codeforces Codeforces Beta Round #79 (Div. 1 Only) & Codeforces Beta Round #79 (Div. 2 Only) 6
240 Searching Rectangles Categories Codeforces Codeforces Round #371 (Div. 1) & Codeforces Round #371 (Div. 2) 6
241 Maxim and Restaurant Categories Codeforces Codeforces Round #160 (Div. 1) & Codeforces Round #160 (Div. 2) 6
242 Guess That Car! Categories Codeforces Codeforces Round #127 (Div. 1) & Codeforces Round #127 (Div. 2) 6
243 Ring Road 2 Categories Codeforces Codeforces Beta Round #27 (Codeforces format, Div. 2) 6
244 World Tour Categories Codeforces Codeforces Round #349 (Div. 1) & Codeforces Round #349 (Div. 2) 6
245 Vladik and Favorite Game Categories Codeforces Codeforces Round #416 (Div. 2) 6
246 Ants Categories Codeforces Codeforces Round #188 (Div. 1) & Codeforces Round #188 (Div. 2) 6
247 Arthur and Walls Categories Codeforces Codeforces Round #297 (Div. 2) 6
248 Gifts by the List Categories Codeforces Codeforces Round #357 (Div. 2) 6
249 Karen and Test Categories Codeforces Codeforces Round #419 (Div. 1) & Codeforces Round #419 (Div. 2) 6
250 Cinema Categories Codeforces Codeforces Round #145 (Div. 2, ACM-ICPC Rules) & Codeforces Round #145 (Div. 1, ACM-ICPC Rules) 6
251 Hongcow's Game Categories Codeforces Codeforces Round #385 (Div. 1) & Codeforces Round #385 (Div. 2) 6
252 Segments Categories Codeforces Codeforces Beta Round #22 (Div. 2 Only) 6
253 Rectangle Puzzle II Categories Codeforces Codeforces Round #183 (Div. 1) & Codeforces Round #183 (Div. 2) 6
254 Random Task Categories Codeforces Codeforces Round #247 (Div. 2) 6
255 Ant on the Tree Categories Codeforces Codeforces Beta Round #29 (Div. 2, Codeforces format) 6
256 Minesweeper 1D Categories Codeforces Codeforces Round #237 (Div. 2) 6
257 Messenger Categories Codeforces Codeforces Round #344 (Div. 2) 6
258 Numbers Categories Codeforces Codeforces Round #131 (Div. 1) & Codeforces Round #131 (Div. 2) 6
259 Tanya and Password Categories Codeforces Codeforces Round #288 (Div. 2) 6
260 Non-Secret Cypher Categories Codeforces Codeforces Round #120 (Div. 2) 6
261 Hydra Categories Codeforces Codeforces Round #150 (Div. 1) & Codeforces Round #150 (Div. 2) 6
262 Dynamic Problem Scoring Categories Codeforces VK Cup 2017 - Round 3 6
263 Naughty Stone Piles Categories Codeforces Codeforces Round #140 (Div. 1) & Codeforces Round #140 (Div. 2) 6
264 Sum Categories Codeforces Codeforces Round #159 (Div. 2) 6
265 Leha and another game about graph Categories Codeforces Codeforces Round #429 (Div. 1) & Codeforces Round #429 (Div. 2) 6
266 Memory and Scores Categories Codeforces Codeforces Round #370 (Div. 2) 6
267 Coloring Brackets Categories Codeforces Codeforces Round #106 (Div. 2) 6
268 Sereja and Periods Categories Codeforces Codeforces Round #187 (Div. 1) & Codeforces Round #187 (Div. 2) 6
269 Doctor Categories Codeforces Codeforces Beta Round #72 (Div. 1 Only) & Codeforces Beta Round #72 (Div. 2 Only) 6
270 Table Categories Codeforces Codeforces Round #144 (Div. 1) & Codeforces Round #144 (Div. 2) 6
271 Beautiful numbers Categories Codeforces Codeforces Beta Round #51 6
272 Yet Another Number Game Categories Codeforces Codeforces Round #173 (Div. 2) 6
273 The Maths Lecture Categories Codeforces Codeforces Round #287 (Div. 2) 6
274 Lizards and Basements 2 Categories Codeforces Codeforces Beta Round #6 (Div. 2 Only) 6
275 Dispute Categories Codeforces Codeforces Round #149 (Div. 2) 6
276 AlgoRace Categories Codeforces Codeforces Round #119 (Div. 1) & Codeforces Round #119 (Div. 2) 6
277 Invariance of Tree Categories Codeforces Codeforces Round #319 (Div. 1) & Codeforces Round #319 (Div. 2) 6
278 Felicity's Big Secret Revealed Categories Codeforces Codecraft-17 and Codeforces Round #391 (Div. 1 + Div. 2, combined) 6
279 Ilya and Roads Categories Codeforces Codeforces Round #186 (Div. 2) 6
280 Wizards and Huge Prize Categories Codeforces Codeforces Round #114 (Div. 1) & Codeforces Round #114 (Div. 2) 6
281 Cubes Categories Codeforces Codeforces Round #295 (Div. 2) & Codeforces Round #295 (Div. 1) 6
282 Graph Coloring Categories Codeforces CROC 2016 - Final Round [Private, For Onsite Finalists Only] 6
283 LCIS Categories Codeforces Codeforces Beta Round #10 6
284 Playing with Permutations Categories Codeforces Codeforces Round #153 (Div. 1) & Codeforces Round #153 (Div. 2) 6
285 Vanya and Treasure Categories Codeforces Codeforces Round #355 (Div. 2) 6
286 Merge Sort Categories Codeforces Educational Codeforces Round 30 6
287 Mr. Kitayuta's Technology Categories Codeforces Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) 6
288 Two Strings Categories Codeforces Codeforces Round #138 (Div. 1) & Codeforces Round #138 (Div. 2) 6
289 Apple Tree Categories Codeforces Codeforces Round #202 (Div. 1) & Codeforces Round #202 (Div. 2) 6
290 Mushroom Scientists Categories Codeforces Codeforces Round #118 (Div. 1) & Codeforces Round #118 (Div. 2) 6
291 Permutations Categories Codeforces School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round #45 (ACM-ICPC Rules) 6
292 Little Elephant and Elections Categories Codeforces Codeforces Round #157 (Div. 1) & Codeforces Round #157 (Div. 2) 6
293 Santa Claus and a Palindrome Categories Codeforces Technocup 2017 - Elimination Round 3 6
294 Mister B and PR Shifts Categories Codeforces Codeforces Round #421 (Div. 1) & Codeforces Round #421 (Div. 2) 6
295 String Categories Codeforces Codeforces Beta Round #94 (Div. 1 Only) & Codeforces Beta Round #94 (Div. 2 Only) 6
296 Mike and distribution Categories Codeforces Codeforces Round #410 (Div. 2) 6
297 Legacy Categories Codeforces Codeforces Round #406 (Div. 1) & Codeforces Round #406 (Div. 2) 6
298 Physical Education Categories Codeforces Codeforces Beta Round #49 (Div. 2) 6
299 Fedor and Essay Categories Codeforces Codeforces Round #267 (Div. 2) 6
300 Match & Catch Categories Codeforces Codeforces Round #244 (Div. 2) 6
301 Palindromes Categories Codeforces Codeforces Beta Round #98 (Div. 2) 6
302 Hit Ball Categories Codeforces Codeforces Round #128 (Div. 2) 6
303 Sereja and Table Categories Codeforces Codeforces Round #243 (Div. 1) 6
304 Glad to see you! Categories Codeforces Codeforces Round #415 (Div. 1) & Codeforces Round #415 (Div. 2) 6
305 Animals Categories Codeforces Codeforces Beta Round #35 (Div. 2) 6
306 Inna and Sequence Categories Codeforces Codeforces Round #220 (Div. 2) 7
307 Little Victor and Set Categories Codeforces Codeforces Round #262 (Div. 2) 7
308 Beard Graph Categories Codeforces Codeforces Round #112 (Div. 2) 7
309 Nanami's Digital Board Categories Codeforces Codeforces Round #248 (Div. 2) & Codeforces Round #248 (Div. 1) 7
310 Restoring Numbers Categories Codeforces Codeforces Round #289 (Div. 2, ACM ICPC Rules) 7
311 Demonstration Categories Codeforces Codeforces Round #121 (Div. 1) & Codeforces Round #121 (Div. 2) 7
312 Ksenia and Pawns Categories Codeforces Codeforces Round #224 (Div. 2) 7
313 Dima and Trap Graph Categories Codeforces Codeforces Round #214 (Div. 2) 7
314 Painting The Wall Categories Codeforces Codeforces Round #233 (Div. 1) & Codeforces Round #233 (Div. 2) 7
315 Name That Tune Categories Codeforces Codeforces Round #284 (Div. 1) & Codeforces Round #284 (Div. 2) 7
316 Valera and Swaps Categories Codeforces Codeforces Round #252 (Div. 2) 7
317 Vasya and Types Categories Codeforces Codeforces Beta Round #73 (Div. 1 Only) & Codeforces Beta Round #73 (Div. 2 Only) 7
318 Parking Lot Categories Codeforces School Personal Contest #2 (Winter Computer School 2010/11) - Codeforces Beta Round #43 (ACM-ICPC Rules) 7
319 Ball Categories Codeforces Codeforces Beta Round #12 (Div 2 Only) 7
320 Huge Strings Categories Codeforces Codeforces Round #438 by Sberbank and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 7
321 Squares Categories Codeforces Codeforces Beta Round #92 (Div. 1 Only) & Codeforces Beta Round #92 (Div. 2 Only) 7
322 Edges in MST Categories Codeforces Codeforces Round #111 (Div. 2) 7
323 Free Market Categories Codeforces Codeforces Round #213 (Div. 1) & Codeforces Round #213 (Div. 2) 7
324 Logging Categories Codeforces Codeforces Beta Round #16 (Div. 2 Only) 7
325 On Sum of Fractions Categories Codeforces Codeforces Round #232 (Div. 1) & Codeforces Round #232 (Div. 2) 7
326 Programming Language Categories Codeforces Codeforces Round #126 (Div. 2) 7
327 Happy Tree Party Categories Codeforces Codeforces Round #329 (Div. 2) 7
328 Dot Categories Codeforces Codeforces Beta Round #63 (Div. 2) 7
329 Knights Categories Codeforces Codeforces Beta Round #33 (Codeforces format) 7
330 Population Size Categories Codeforces Codeforces Round #241 (Div. 2) 7
331 Journey Categories Codeforces Codeforces Beta Round #42 (Div. 2) 7
332 Ant Man Categories Codeforces Codeforces Round #366 (Div. 1) & Codeforces Round #366 (Div. 2) 7
333 Table with Letters - 2 Categories Codeforces Codeforces Round #154 (Div. 2) 7
334 Treasure Island Categories Codeforces Codeforces Beta Round #82 (Div. 2) 7
335 80-th Level Archeology Categories Codeforces Codeforces Round #376 (Div. 2) 7
336 Snake Categories Codeforces Codeforces Round #139 (Div. 2) 7
337 Big Maximum Sum Categories Codeforces Codeforces Beta Round #67 (Div. 2) 7
338 Fools and Foolproof Roads Categories Codeforces Codeforces Round #212 (Div. 2) 7
339 Game Categories Codeforces Codeforces Beta Round #46 (Div. 2) 7
340 Black and White Tree Categories Codeforces Codeforces Round #158 (Div. 2) 7
341 Okabe and City Categories Codeforces Codeforces Round #420 (Div. 2) 7
342 Vika and Segments Categories Codeforces Codeforces Round #337 (Div. 2) 7
343 Constellation Categories Codeforces Codeforces Beta Round #32 (Div. 2, Codeforces format) 7
344 Blackboard Fibonacci Categories Codeforces Codeforces Round #134 (Div. 1) & Codeforces Round #134 (Div. 2) 7
345 Analyzing Polyline Categories Codeforces Codeforces Round #123 (Div. 2) 7
346 Vasily the Bear and Beautiful Strings Categories Codeforces Codeforces Round #195 (Div. 2) 7
347 Points Categories Codeforces Codeforces Beta Round #19 7
348 Valera and Fools Categories Codeforces Codeforces Round #216 (Div. 2) 7
349 Digits Permutations Categories Codeforces Codeforces Beta Round #99 (Div. 1) & Codeforces Beta Round #99 (Div. 2) 7
350 Follow Traffic Rules Categories Codeforces Codeforces Beta Round #5 7
351 Boring Partition Categories Codeforces Codeforces Round #148 (Div. 1) & Codeforces Round #148 (Div. 2) 7
352 End of Exams Categories Codeforces Codeforces Beta Round #76 (Div. 1 Only) & Codeforces Beta Round #76 (Div. 2 Only) 7
353 DZY Loves FFT Categories Codeforces Codeforces Round #254 (Div. 1) & Codeforces Round #254 (Div. 2) 7
354 Shifting Categories Codeforces Codeforces Round #176 (Div. 1) & Codeforces Round #176 (Div. 2) 7
355 Changing a String Categories Codeforces Codeforces Beta Round #52 (Div. 2) 7
356 Cats Transport Categories Codeforces Codeforces Round #185 (Div. 1) & Codeforces Round #185 (Div. 2) 7
357 Special Grid Categories Codeforces Codeforces Round #249 (Div. 2) 7
358 Chocolate Categories Codeforces Codeforces Beta Round #31 (Div. 2, Codeforces format) 7
359 Spider's Web Categories Codeforces Codeforces Round #133 (Div. 2) 7
360 Xor Categories Codeforces Codeforces Round #122 (Div. 1) & Codeforces Round #122 (Div. 2) 7
361 Pawn Categories Codeforces Codeforces Beta Round #40 (Div. 2) 7
362 Russian Roulette Categories Codeforces Codeforces Beta Round #80 (Div. 1 Only) & Codeforces Beta Round #80 (Div. 2 Only) 7
363 Guess Your Way Out! II Categories Codeforces Codeforces Round #312 (Div. 2) 7
364 Seller Bob Categories Codeforces Codeforces Beta Round #18 (Div. 2 Only) 7
365 Something with XOR Queries Categories Codeforces Technocup 2018 - Elimination Round 2 7
366 Rat Kwesh and Cheese Categories Codeforces Codeforces Round #341 (Div. 2) 7
367 Set of Points Categories Codeforces Codeforces Round #170 (Div. 1) & Codeforces Round #170 (Div. 2) 7
368 Widget Library Categories Codeforces Codeforces Beta Round #74 (Div. 1 Only) & Codeforces Beta Round #74 (Div. 2 Only) 8
369 Safe Categories Codeforces Codeforces Beta Round #44 (Div. 2) 8
370 Triangles Categories Codeforces Codeforces Beta Round #13 8
371 Inna and Sweet Matrix Categories Codeforces Codeforces Round #229 (Div. 2) 8
372 Olya and Graph Categories Codeforces Codeforces Round #184 (Div. 2) 8
373 Two Friends Categories Codeforces Codeforces Beta Round #8 8
374 Notepad Categories Codeforces Codeforces Beta Round #17 8
375 Max and Bike Categories Codeforces Codeforces Round #330 (Div. 1) & Codeforces Round #330 (Div. 2) 8
376 Team Arrangement Categories Codeforces Codeforces Beta Round #55 (Div. 2) 8
377 Professor's task Categories Codeforces Codeforces Beta Round #64 8
378 Name Categories Codeforces Codeforces Round #116 (Div. 2, ACM-ICPC Rules) 8
379 Biathlon Track Categories Codeforces Codeforces Round #242 (Div. 2) 8
380 Dividing Island Categories Codeforces Codeforces Beta Round #59 (Div. 2) 8
381 Vasya the Architect Categories Codeforces School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) 8
382 Sereja and Tree Categories Codeforces Codeforces Round #223 (Div. 1) & Codeforces Round #223 (Div. 2) 8
383 Bombing Categories Codeforces Codeforces Beta Round #47 8
384 Piet Categories Codeforces Codeforces Beta Round #96 (Div. 1) & Codeforces Beta Round #96 (Div. 2) 8
385 Calendar Categories Codeforces Codeforces Beta Round #54 (Div. 2) 8
386 Tickets Categories Codeforces Codeforces Beta Round #26 (Codeforces format) 8
387 Xenia and Dominoes Categories Codeforces Codeforces Round #199 (Div. 2) 8
388 Traveling Graph Categories Codeforces Codeforces Alpha Round #21 (Codeforces format) 8
389 BerDonalds Categories Codeforces Codeforces Round #163 (Div. 2) 8
390 Take-off Ramps Categories Codeforces Codeforces Round #101 (Div. 2) 8
391 George and Interesting Graph Categories Codeforces Codeforces Round #227 (Div. 2) 8
392 Broken Monitor Categories Codeforces Codeforces Round #217 (Div. 2) 8
393 Don't fear, DravDe is kind Categories Codeforces Codeforces Beta Round #28 (Codeforces format) 8
394 Password Categories Codeforces Codeforces Beta Round #71 8
395 Bear and Floodlight Categories Codeforces Codeforces Round #226 (Div. 2) 8
396 The Minimum Number of Variables Categories Codeforces Codeforces Round #171 (Div. 2) 8
397 Finals in arithmetic Categories Codeforces Codeforces Round #342 (Div. 2) 8
398 Painting Square Categories Codeforces Codeforces Round #181 (Div. 2) 8
399 Labelling Cities Categories Codeforces Tinkoff Challenge - Final Round (Codeforces Round #414, rated, Div. 1 + Div. 2) 8
400 FreeDiv Categories Codeforces Codeforces Beta Round #66 8
401 New Game with a Chess Piece Categories Codeforces Codeforces Beta Round #36 8
402 T-decomposition Categories Codeforces Codeforces Round #147 (Div. 2) 8
403 Broken robot Categories Codeforces Codeforces Beta Round #24 8
404 Tower of Hanoi Categories Codeforces Codeforces Round #230 (Div. 1) & Codeforces Round #230 (Div. 2) 8
405 Sweets for Everyone! Categories Codeforces Codeforces Round #152 (Div. 2) & Codeforces Round #152 (Div. 1) 8
406 Volcanoes Categories Codeforces Codeforces Round #225 (Div. 1) & Codeforces Round #225 (Div. 2) 8
407 Wilbur and Trees Categories Codeforces Codeforces Round #331 (Div. 2) 8
408 Two Melodies Categories Codeforces Educational Codeforces Round 22 8
409 Tetragon Categories Codeforces Codeforces Beta Round #23 9
410 Harry Potter and the Sorting Hat Categories Codeforces Codeforces Beta Round #60 9
411 King's Problem? Categories Codeforces Codeforces Beta Round #30 (Codeforces format) 9
412 Zigzag Categories Codeforces Codeforces Round #141 (Div. 2) 9
413 Theft of Blueprints Categories Codeforces Codeforces Round #193 (Div. 2) 9
414 Not Quick Transformation Categories Codeforces Codeforces Beta Round #88 9
415 Geometrical problem Categories Codeforces Codeforces Beta Round #48 9
416 Sagheer and Kindergarten Categories Codeforces Codeforces Round #417 (Div. 2) 9
417 Rats Categories Codeforces Codeforces Round #155 (Div. 2) 9
418 Wall Bars Categories Codeforces Codeforces Round #164 (Div. 2) 9
419 Hanger Categories Codeforces Codeforces Beta Round #68 9
420 Shaass and Painter Robot Categories Codeforces Codeforces Round #178 (Div. 2) 9
421 Plane of Tanks: Duel Categories Codeforces Codeforces Round #115 9
422 Wormhouse Categories Codeforces Codeforces Beta Round #58 9
423 Lesson Timetable Categories Codeforces Codeforces Beta Round #37 9
424 Map Categories Codeforces Codeforces Beta Round #15 9
425 Physical Education and Buns Categories Codeforces Codeforces Round #231 (Div. 2) 9
426 Journey Categories Codeforces Codeforces Beta Round #53 9
427 Half-decay tree Categories Codeforces Codeforces Beta Round #62 9
428 Strange town Categories Codeforces Codeforces Beta Round #41 9
429 Writing a Song Categories Codeforces Codeforces Beta Round #50 9
430 String Transformation Categories Codeforces Codeforces Beta Round #90 9
431 Shoe Store Categories Codeforces Codeforces Round #113 (Div. 2) 9
432 Archer's Shot Categories Codeforces Codeforces Beta Round #70 (Div. 2) 9
433 Game with Strings Categories Codeforces Codeforces Round #206 (Div. 1) & Codeforces Round #206 (Div. 2) 9
434 Frames Categories Codeforces Codeforces Round #108 (Div. 2) 9
435 Savior Categories Codeforces Codeforces Beta Round #56 9
436 Solitaire Categories Codeforces Codeforces Beta Round #65 (Div. 2) 9
437 Interesting Sequence Categories Codeforces Codeforces Beta Round #39 10
438 Help King Categories Codeforces Codeforces Beta Round #78 (Div. 1 Only) & Codeforces Beta Round #78 (Div. 2 Only) 10
439 The Overdosing Ubiquity Categories Codeforces Codeforces Round #439 (Div. 2) 10
440 Looking for Owls Categories Codeforces Codeforces Round #203 (Div. 2) 10
441 Guards In The Storehouse Categories Codeforces Educational Codeforces Round 27 10
442 Entertaining Geodetics Categories Codeforces Codeforces Beta Round #81 10
443 Number of Binominal Coefficients Categories Codeforces Codeforces Round #323 (Div. 1) 10