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Codeforces Div. 2 - A Problems problems
Problem Name Online Judge Year Contest Difficulty Level
1 Elections Categories Codeforces Codeforces Round #316 (Div. 2) 1
2 One-dimensional Japanese Crossword Categories Codeforces Codeforces Round #374 (Div. 2) 1
3 Search for Pretty Integers Categories Codeforces Technocup 2018 - Elimination Round 2 1
4 Bachgold Problem Categories Codeforces Codeforces Round #388 (Div. 2) 1
5 Two Buttons Categories Codeforces Codeforces Round #295 (Div. 2) 1
6 Life Without Zeros Categories Codeforces Codeforces Beta Round #67 (Div. 2) 1
7 Is your horseshoe on the other hoof? Categories Codeforces Codeforces Round #141 (Div. 2) 1
8 Lunch Rush Categories Codeforces Codeforces Round #169 (Div. 2) 1
9 Dasha and Stairs Categories Codeforces Codeforces Round #394 (Div. 2) 1
10 Anton and Polyhedrons Categories Codeforces Codeforces Round #404 (Div. 2) 1
11 Epic Game Categories Codeforces Codeforces Beta Round #90 1
12 Games Categories Codeforces Codeforces Round #164 (Div. 2) 1
13 Gravity Flip Categories Codeforces Codeforces Round #238 (Div. 2) 1
14 Lucky Ticket Categories Codeforces Codeforces Round #104 (Div. 2) 1
15 Ilya and Diplomas Categories Codeforces Codeforces Round #311 (Div. 2) 1
16 Shaass and Oskols Categories Codeforces Codeforces Round #178 (Div. 2) 1
17 Valera and Antique Items Categories Codeforces Codeforces Round #252 (Div. 2) 1
18 Alena's Schedule Categories Codeforces Codeforces Round #325 (Div. 2) 1
19 Cheap Travel Categories Codeforces Codeforces Round #266 (Div. 2) 1
20 Opponents Categories Codeforces Codeforces Round #360 (Div. 2) 1
21 Key races Categories Codeforces Codeforces Round #427 (Div. 2) 1
22 Pashmak and Garden Categories Codeforces Codeforces Round #261 (Div. 2) 1
23 Uncowed Forces Categories Codeforces Codeforces Round #334 (Div. 2) 1
24 Counterexample Categories Codeforces Codeforces Round #275 (Div. 2) 1
25 Oath of the Night's Watch Categories Codeforces Divide by Zero 2017 and Codeforces Round #399 (Div. 1 + Div. 2, combined) 1
26 Cloning Toys Categories Codeforces Codeforces Round #461 (Div. 2) 1
27 Winner Categories Codeforces Codeforces Beta Round #2 1
28 Minimum Difficulty Categories Codeforces Codeforces Round #283 (Div. 2) 1
29 A Good Contest Categories Codeforces Codeforces Round #357 (Div. 2) 1
30 Vitaliy and Pie Categories Codeforces Codeforces Round #297 (Div. 2) 1
31 Given Length and Sum of Digits... Categories Codeforces Codeforces Round #277.5 (Div. 2) 1
32 Bus to Udayland Categories Codeforces Codeforces Round #369 (Div. 2) 1
33 An abandoned sentiment from past Categories Codeforces Codeforces Round #418 (Div. 2) 1
34 Petya and Strings Categories Codeforces Codeforces Beta Round #85 (Div. 2 Only) 1
35 IQ test Categories Codeforces Codeforces Beta Round #25 (Div. 2 Only) 1
36 Petr and Book Categories Codeforces Codeforces Beta Round #99 (Div. 2) 1
37 Two Substrings Categories Codeforces Codeforces Round #306 (Div. 2) 1
38 Bit++ Categories Codeforces Codeforces Round #173 (Div. 2) 1
39 Black Square Categories Codeforces Codeforces Round #247 (Div. 2) 1
40 Raising Bacteria Categories Codeforces Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] 1
41 Grasshopper And the String Categories Codeforces Codeforces Round #378 (Div. 2) 1
42 Vladik and flights Categories Codeforces Codeforces Round #384 (Div. 2) 1
43 Rare Order Categories UVA 1
44 Rewards Categories Codeforces Codeforces Round #256 (Div. 2) 1
45 Puzzles Categories Codeforces Codeforces Round #196 (Div. 2) 1
46 Design Tutorial: Learn from Math Categories Codeforces Codeforces Round #270 1
47 Far Relative’s Birthday Cake Categories Codeforces Codeforces Round #343 (Div. 2) 1
48 Mahmoud and Longest Uncommon Subsequence Categories Codeforces Codeforces Round #396 (Div. 2) 1
49 Heist Categories Codeforces Codeforces Round #509 (Div. 2) 1
50 Buying A House Categories Codeforces Codeforces Round #408 (Div. 2) 1
51 Cookies Categories Codeforces Codeforces Beta Round #94 (Div. 2 Only) 1
52 Lights Out Categories Codeforces Codeforces Round #168 (Div. 2) 1
53 Reconnaissance 2 Categories Codeforces Codeforces Beta Round #34 (Div. 2) 1
54 Marks Categories Codeforces Codeforces Round #108 (Div. 2) 1
55 Summer Camp Categories Codeforces Codeforces Round #352 (Div. 2) 1
56 Drazil and Date Categories Codeforces Codeforces Round #292 (Div. 2) 1
57 Fake NP Categories Codeforces Codeforces Round #411 (Div. 2) 1
58 Cards Categories Codeforces Codeforces Round #364 (Div. 2) 1
59 Flipping Game Categories Codeforces Codeforces Round #191 (Div. 2) 1
60 Ultra-Fast Mathematician Categories Codeforces Codeforces Beta Round #57 (Div. 2) 1
61 System of Equations Categories Codeforces Codeforces Round #131 (Div. 2) 1
62 Domino Categories Codeforces Codeforces Round #205 (Div. 2) 1
63 Giga Tower Categories Codeforces Codeforces Round #278 (Div. 2) 1
64 Vitya in the Countryside Categories Codeforces Codeforces Round #373 (Div. 2) 1
65 Trip For Meal Categories Codeforces Codeforces Round #441 (Div. 2, by Moscow Team Olympiad) 1
66 Tiling a Grid With Dominoes Categories Live Archive 2007 North America - Greater NY 1
67 Triangle Categories Codeforces Codeforces Beta Round #6 (Div. 2 Only) 1
68 Amr and Music Categories Codeforces Codeforces Round #287 (Div. 2) 1
69 Fox and Number Game Categories Codeforces Codeforces Round #228 (Div. 2) 1
70 Combination Lock Categories Codeforces Codeforces Round #301 (Div. 2) 1
71 ACM (ACronymMaker) Categories SPOJ 1
72 Andryusha and Socks Categories Codeforces ?????????? 2017 - ????? (?????? ??? ??????-??????????) 1
73 String Task Categories Codeforces Codeforces Beta Round #89 (Div. 2) 1
74 Stones on the Table Categories Codeforces Codeforces Round #163 (Div. 2) 1
75 Valera and X Categories Codeforces Codeforces Round #237 (Div. 2) 1
76 Arrival of the General Categories Codeforces Codeforces Round #103 (Div. 2) 1
77 Case of the Zeros and Ones Categories Codeforces Codeforces Round #310 (Div. 2) 1
78 Devu, the Singer and Churu, the Joker Categories Codeforces Codeforces Round #251 (Div. 2) 1
79 Olesya and Rodion Categories Codeforces Codeforces Round #324 (Div. 2) 1
80 inc ARG Categories Codeforces Codeforces Round #265 (Div. 2) 1
81 Bulbs Categories Codeforces Codeforces Round #338 (Div. 2) 1
82 Vladik and Courtesy Categories Codeforces Codeforces Round #416 (Div. 2) 1
83 Arya and Bran Categories Codeforces Codeforces Round #428 (Div. 2) 1
84 Army Categories Codeforces School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) 1
85 Supercentral Point Categories Codeforces Codeforces Round #112 (Div. 2) 1
86 Ilya and Bank Account Categories Codeforces Codeforces Round #186 (Div. 2) 1
87 Laptops Categories Codeforces Codeforces Round #260 (Div. 2) 1
88 Two Bases Categories Codeforces Codeforces Round #333 (Div. 2) 1
89 Magnets Categories Codeforces Codeforces Round #200 (Div. 2) 1
90 Expression Categories Codeforces Codeforces Round #274 (Div. 2) 1
91 Complicated GCD Categories Codeforces Codeforces Round #347 (Div. 2) 1
92 Snacktower Categories Codeforces Codeforces Round #398 (Div. 2) 1
93 Domino piling Categories Codeforces Codeforces Beta Round #47 1
94 k-String Categories Codeforces Codeforces Round #135 (Div. 2) 1
95 Theatre Square Categories Codeforces Codeforces Beta Round #1 1
96 Chips Categories Codeforces Codeforces Beta Round #75 (Div. 2 Only) 1
97 Bear and Five Cards Categories Codeforces Codeforces Round #356 (Div. 2) 1
98 Sereja and Dima Categories Codeforces Codeforces Round #223 (Div. 2) 1
99 Playing with Paper Categories Codeforces Codeforces Round #296 (Div. 2) 1
100 Brain's Photos Categories Codeforces Codeforces Round #368 (Div. 2) 1
101 Karen and Morning Categories Codeforces Codeforces Round #419 (Div. 2) 1
102 Nearly Lucky Number Categories Codeforces Codeforces Beta Round #84 (Div. 2 Only) 1
103 Mike and Fax Categories Codeforces Codeforces Round #305 (Div. 2) 1
104 Word Capitalization Categories Codeforces Codeforces Round #172 (Div. 2) 1
105 Choosing Teams Categories Codeforces Codeforces Round #246 (Div. 2) 1
106 Multiplication Table Categories Codeforces Codeforces Round #319 (Div. 2) 1
107 Night at the Museum Categories Codeforces Codeforces Round #376 (Div. 2) 1
108 Hongcow Learns the Cyclic Shift Categories Codeforces Codeforces Round #385 (Div. 2) 1
109 Perfect Permutation Categories Codeforces Codeforces Round #144 (Div. 2) 1
110 MUH and Sticks Categories Codeforces Codeforces Round #269 (Div. 2) 1
111 Tetrahedron Categories Codeforces Codeforces Round #113 (Div. 2) 1
112 USB Flash Drives Categories Codeforces Educational Codeforces Round 3 1
113 Anastasia and pebbles Categories Codeforces Codeforces Round #407 (Div. 2) 1
114 Dima and Friends Categories Codeforces Codeforces Round #167 (Div. 2) 1
115 Soft Drinking Categories Codeforces Codeforces Round #107 (Div. 2) 1
116 Array Categories Codeforces Codeforces Round #181 (Div. 2) 1
117 Chewba?ca and Number Categories Codeforces Codeforces Round #291 (Div. 2) 1
118 Launch of Collider Categories Codeforces Codeforces Round #363 (Div. 2) 1
119 Unimodal Array Categories Codeforces Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) 1
120 Football Categories Codeforces Codeforces Beta Round #42 (Div. 2) 1
121 Caisa and Sugar Categories Codeforces Codeforces Round #264 (Div. 2) 1
122 Dubstep Categories Codeforces Codeforces Round #130 (Div. 2) 1
123 Jeff and Digits Categories Codeforces Codeforces Round #204 (Div. 2) 1
124 Crazy Computer Categories Codeforces Codeforces Round #372 (Div. 2) 1
125 Prime Permutations Categories CodeChef 1
126 Balloons Colors Categories A2 Online Judge 1
127 Relational Operators Categories Live Archive 2009 Asia - Phuket 1
128 Way Too Long Words Categories Codeforces Codeforces Beta Round #65 (Div. 2) 1
129 Lineland Mail Categories Codeforces Codeforces Round #Pi (Div. 2) 1
130 Gotta Catch Em' All! Categories Codeforces Codecraft-17 and Codeforces Round #391 (Div. 1 + Div. 2, combined) 1
131 Pupils Redistribution Categories Codeforces Codeforces Round #402 (Div. 2) 1
132 Colorful Stones (Simplified Edition) Categories Codeforces Codeforces Round #162 (Div. 2) 1
133 Kyoya and Photobooks Categories Codeforces Codeforces Round #309 (Div. 2) 1
134 Asphalting Roads Categories Codeforces Codeforces Round #323 (Div. 2) 1
135 Pasha and Stick Categories Codeforces Codeforces Round #337 (Div. 2) 1
136 Rounding Categories Codeforces Codeforces Round #451 (Div. 2) 1
137 Generous Kefa Categories Codeforces Codeforces Round #429 (Div. 2) 1
138 Towers Categories Codeforces Codeforces Beta Round #37 1
139 Twins Categories Codeforces Codeforces Round #111 (Div. 2) 1
140 Little Pony and Crystal Mine Categories Codeforces Codeforces Round #259 (Div. 2) 1
141 Hexadecimal's theorem Categories Codeforces Codeforces Round #125 (Div. 2) 1
142 Patrick and Shopping Categories Codeforces Codeforces Round #332 (Div. 2) 1
143 Initial Bet Categories Codeforces Codeforces Round #273 (Div. 2) 1
144 Round House Categories Codeforces Codeforces Round #346 (Div. 2) 1
145 New Year Candles Categories Codeforces Good Bye 2013 1
146 Vanya and Fence Categories Codeforces Codeforces Round #355 (Div. 2) 1
147 Playing with Dice Categories Codeforces Codeforces Round #222 (Div. 2) 1
148 Pangram Categories Codeforces Codeforces Round #295 (Div. 2) 1
149 Beru-taxi Categories Codeforces Codeforces Round #367 (Div. 2) 1
150 Presents Categories Codeforces Codeforces Beta Round #97 (Div. 2) 1
151 Soldier and Bananas Categories Codeforces Codeforces Round #304 (Div. 2) 1
152 Bear and Elections Categories Codeforces Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) 1
153 Buy a Shovel Categories Codeforces Codeforces Round #377 (Div. 2) 1
154 The Artful Expedient Categories Codeforces Codeforces Round #439 (Div. 2) 1
155 Compote Categories Codeforces Codeforces Round #386 (Div. 2) 1
156 Panoramix's Prediction Categories Codeforces Codeforces Beta Round #69 (Div. 2 Only) 1
157 Team Categories Codeforces Codeforces Round #143 (Div. 2) 1
158 Die Roll Categories Codeforces Codeforces Beta Round #9 (Div. 2 Only) 1
159 Candy Bags Categories Codeforces Codeforces Round #194 (Div. 2) 1
160 I Wanna Be the Guy Categories Codeforces Codeforces Round #268 (Div. 2) 1
161 Wet Shark and Odd and Even Categories Codeforces Codeforces Round #341 (Div. 2) 1
162 Holiday Of Equality Categories Codeforces Codeforces Round #392 (Div. 2) 1
163 Maximum Increase Categories Codeforces Educational Codeforces Round 15 1
164 The Monster Categories Codeforces Codeforces Round #406 (Div. 2) 1
165 The number of positions Categories Codeforces Codeforces Beta Round #92 (Div. 2 Only) 1
166 Beautiful Year Categories Codeforces Codeforces Round #166 (Div. 2) 1
167 Business trip Categories Codeforces Codeforces Round #106 (Div. 2) 1
168 DZY Loves Chessboard Categories Codeforces Codeforces Round #254 (Div. 2) 1
169 Wizards' Duel Categories Codeforces Codeforces Round #327 (Div. 2) 1
170 Pineapple Incident Categories Codeforces Codeforces Round #362 (Div. 2) 1
171 Sasha and Sticks Categories Codeforces Codeforces Round #425 (Div. 2) 1
172 Magic Numbers Categories Codeforces Codeforces Round #189 (Div. 2) 1
173 Word Categories Codeforces Codeforces Beta Round #55 (Div. 2) 1
174 Appleman and Easy Task Categories Codeforces Codeforces Round #263 (Div. 2) 1
175 TL Categories Codeforces Codeforces Round #203 (Div. 2) 1
176 Calculating Function Categories Codeforces Codeforces Round #277 (Div. 2) 1
177 Holidays Categories Codeforces Codeforces Round #350 (Div. 2) 1
178 Fox And Snake Categories Codeforces Codeforces Round #290 (Div. 2) 1
179 Meeting of Old Friends Categories Codeforces Codeforces Round #371 (Div. 2) 1
180 Fair Game Categories Codeforces Codeforces Round #436 (Div. 2) 1
181 Arpa’s hard exam and Mehrdad’s naive cheat Categories Codeforces Codeforces Round #383 (Div. 2) 1
182 Love Triangle Categories Codeforces Codeforces Round #464 (Div. 2) 1
183 Parallelepiped Categories Codeforces Codeforces Round #138 (Div. 2) 1
184 Watermelon Categories Codeforces Codeforces Beta Round #4 (Div. 2 Only) 1
185 Contest Categories Codeforces Codeforces Round #285 (Div. 2) 1
186 Free Ice Cream Categories Codeforces Codeforces Round #359 (Div. 2) 1
187 Bear and Raspberry Categories Codeforces Codeforces Round #226 (Div. 2) 1
188 Tavas and Nafas Categories Codeforces Codeforces Round #299 (Div. 2) 1
189 Currency System in Geraldion Categories Codeforces Codeforces Round #313 (Div. 2) 1
190 Simple Game Categories Codeforces Codeforces Round #316 (Div. 2) 1
191 Shell Game Categories Codeforces Codeforces Round #401 (Div. 2) 1
192 Tram Categories Codeforces Codeforces Beta Round #87 (Div. 2 Only) 1
193 Beautiful Matrix Categories Codeforces Codeforces Round #161 (Div. 2) 1
194 Vanya and Cards Categories Codeforces Codeforces Round #235 (Div. 2) 1
195 Amusing Joke Categories Codeforces Codeforces Round #101 (Div. 2) 1
196 Vanya and Table Categories Codeforces Codeforces Round #308 (Div. 2) 1
197 Slightly Decreasing Permutations Categories Codeforces Codeforces Round #175 (Div. 2) 1
198 Queue on Bus Stop Categories Codeforces Codeforces Round #249 (Div. 2) 1
199 Vasya the Hipster Categories Codeforces Codeforces Round #322 (Div. 2) 1
200 Anton and Danik Categories Codeforces Codeforces Round #379 (Div. 2) 1
201 Primary Arithmetic Categories UVA 1
202 HQ9+ Categories Codeforces Codeforces Beta Round #96 (Div. 2) 1
203 Game With Sticks Categories Codeforces Codeforces Round #258 (Div. 2) 1
204 Dreamoon and Stairs Categories Codeforces Codeforces Round #272 (Div. 2) 1
205 Joysticks Categories Codeforces Codeforces Round #345 (Div. 2) 1
206 Sum of Consecutive Prime Numbers Categories Live Archive 2005 Asia - Tokyo 1
207 Vanya and Cubes Categories Codeforces Codeforces Round #280 (Div. 2) 1
208 Free Cash Categories Codeforces Codeforces Round #147 (Div. 2) 1
209 Nicholas and Permutation Categories Codeforces Codeforces Round #354 (Div. 2) 1
210 A and B and Chess Categories Codeforces Codeforces Round #294 (Div. 2) 1
211 Hulk Categories Codeforces Codeforces Round #366 (Div. 2) 1
212 Cut Ribbon Categories Codeforces Codeforces Round #119 (Div. 2) 1
213 Toy Cars Categories Codeforces Codeforces Round #303 (Div. 2) 1
214 Circle Line Categories Codeforces Codeforces Round #170 (Div. 2) 1
215 Police Recruits Categories Codeforces Codeforces Round #244 (Div. 2) 1
216 Arrays Categories Codeforces Codeforces Round #317 [AimFund Thanks-Round] (Div. 2) 1
217 The New Year: Meeting Friends Categories Codeforces Codeforces Round #375 (Div. 2) 1
218 Dragons Categories Codeforces Codeforces Round #142 (Div. 2) 1
219 Valera and Plates Categories Codeforces Codeforces Round #216 (Div. 2) 1
220 Greg's Workout Categories Codeforces Codeforces Round #156 (Div. 2) 1
221 George and Accommodation Categories Codeforces Codeforces Round #267 (Div. 2) 1
222 Elephant Categories Codeforces Codeforces Round #340 (Div. 2) 1
223 Bear and Big Brother Categories Codeforces Codeforces Round #405 (rated, Div. 2, based on VK Cup 2017 Round 1) 1
224 Lucky Division Categories Codeforces Codeforces Beta Round #91 (Div. 2 Only) 1
225 Fancy Fence Categories Codeforces Codeforces Round #165 (Div. 2) 1
226 Insomnia cure Categories Codeforces Codeforces Round #105 (Div. 2) 1
227 Anton and Letters Categories Codeforces Codeforces Round #253 (Div. 2) 1
228 Duff and Meat Categories Codeforces Codeforces Round #326 (Div. 2) 1
229 A Serial Killer Categories Codeforces ICM Technex 2017 and Codeforces Round #400 (Div. 1 + Div. 2, combined) 1
230 The Useless Toy Categories Codeforces Codeforces Round #426 (Div. 2) 1
231 Translation Categories Codeforces Codeforces Beta Round #40 (Div. 2) 1
232 Even Odds Categories Codeforces Codeforces Round #188 (Div. 2) 1
233 Chat room Categories Codeforces Codeforces Beta Round #54 (Div. 2) 1
234 Vasya and Socks Categories Codeforces Codeforces Round #262 (Div. 2) 1
235 Cinema Line Categories Codeforces Codeforces Round #202 (Div. 2) 1
236 Maximum in Table Categories Codeforces Codeforces Round #289 (Div. 2, ACM ICPC Rules) 1
237 Ostap and Grasshopper Categories Codeforces Codeforces Round #382 (Div. 2) 1
238 Jamie and Alarm Snooze Categories Codeforces Codeforces Round #457 (Div. 2) 1
239 Young Physicist Categories Codeforces Codeforces Beta Round #63 (Div. 2) 1
240 Shortest path of the king Categories Codeforces Codeforces Beta Round #3 1
241 Football Categories Codeforces Codeforces Beta Round #77 (Div. 2 Only) 1
242 Watching a movie Categories Codeforces Codeforces Round #284 (Div. 2) 1
243 Alyona and Numbers Categories Codeforces Codeforces Round #358 (Div. 2) 1
244 Coder Categories Codeforces Codeforces Round #225 (Div. 2) 1
245 Exam Categories Codeforces Codeforces Round #298 (Div. 2) 1
246 Lala Land and Apple Trees Categories Codeforces Codeforces Round #312 (Div. 2) 1
247 Memory and Crow Categories Codeforces Codeforces Round #370 (Div. 2) 1
248 Toy Army Categories Codeforces Codeforces Beta Round #72 (Div. 2 Only) 1
249 Cifera Categories Codeforces Codeforces Beta Round #86 (Div. 2 Only) 1
250 Roma and Lucky Numbers Categories Codeforces Codeforces Round #160 (Div. 2) 1
251 Almost Prime Categories Codeforces Codeforces Beta Round #26 (Codeforces format) 1
252 GukiZ and Contest Categories Codeforces Codeforces Round #307 (Div. 2) 1
253 Kefa and First Steps Categories Codeforces Codeforces Round #321 (Div. 2) 1
254 Spreadsheet Categories Codeforces Codeforces Beta Round #1 1
255 I_love_\%username\% Categories Codeforces Codeforces Round #109 (Div. 2) 1
256 Jzzhu and Children Categories Codeforces Codeforces Round #257 (Div. 2) 1
257 Vitaly and Night Categories Codeforces Codeforces Round #330 (Div. 2) 1
258 Helpful Maths Categories Codeforces Codeforces Round #197 (Div. 2) 1
259 Keyboard Categories Codeforces Codeforces Round #271 (Div. 2) 1
260 Taymyr is calling you Categories Codeforces Codeforces Round #395 (Div. 2) 1
261 Nth Smallest Value Categories A2 Online Judge 1
262 cAPS lOCK Categories Codeforces Codeforces Beta Round #95 (Div. 2) 1
263 Team Olympiad Categories Codeforces Codeforces Round #279 (Div. 2) 1
264 Boy or Girl Categories Codeforces Codeforces Round #146 (Div. 2) 1
265 Infinite Sequence Categories Codeforces Codeforces Round #353 (Div. 2) 1
266 Mike and palindrome Categories Codeforces Codeforces Round #410 (Div. 2) 1
267 Mishka and Game Categories Codeforces Codeforces Round #365 (Div. 2) 1
268 I'm bored with life Categories Codeforces Codeforces Round #422 (Div. 2) 1
269 Cakeminator Categories Codeforces Codeforces Round #192 (Div. 2) 1
270 Sereja and Mugs Categories Codeforces Codeforces Round #243 (Div. 2) 2
271 Sereja and Coat Rack Categories Codeforces Codeforces Round #215 (Div. 2) 2
272 Set of Strings Categories Codeforces Codeforces Round #302 (Div. 2) 2
273 Alyona and flowers Categories Codeforces Codeforces Round #381 (Div. 2) 2
274 Flag Categories Codeforces Codeforces Beta Round #16 (Div. 2 Only) 2
275 Link/Cut Tree Categories Codeforces Codeforces Round #339 (Div. 2) 2
276 Straight <<A>> Categories Codeforces Codeforces Round #415 (Div. 2) 2
277 Rank List Categories Codeforces Codeforces Round #113 (Div. 2) 2
278 Difference Row Categories Codeforces Codeforces Round #201 (Div. 2) 2
279 Little Artem and Presents Categories Codeforces Codeforces Round #348 (VK Cup 2016 Round 2, Div. 2 Edition) 2
280 Pasha and Pixels Categories Codeforces Codeforces Round #288 (Div. 2) 2
281 Little Elephant and Function Categories Codeforces Codeforces Round #136 (Div. 2) 2
282 Levko and Table Categories Codeforces Codeforces Round #210 (Div. 2) 2
283 Restoring Password Categories Codeforces Codeforces Beta Round #76 (Div. 2 Only) 2
284 Ksenia and Pan Scales Categories Codeforces Codeforces Round #224 (Div. 2) 2
285 Eugeny and Array Categories Codeforces Codeforces Round #182 (Div. 2) 2
286 2Char Categories Codeforces Codeforces Round #329 (Div. 2) 2
287 Collecting Beats is Fun Categories Codeforces Codeforces Round #219 (Div. 2) 2
288 Restaurant Tables Categories Codeforces Codeforces Round #423 (Div. 2, rated, based on VK Cup Finals) 2
289 Fenwick Trees Categories SPOJ 2
290 Blackjack Categories Codeforces Codeforces Beta Round #80 (Div. 2 Only) 2
291 Boys and Girls Categories Codeforces Codeforces Round #154 (Div. 2) 2
292 Squats Categories Codeforces Codeforces Round #242 (Div. 2) 2
293 Lesha and array splitting Categories Codeforces Codeforces Round #390 (Div. 2) 2
294 Alyona and copybooks Categories Codeforces Codeforces Round #381 (Div. 2) 2
295 Points on Line Categories Codeforces Codeforces Round #153 (Div. 1) & Codeforces Round #153 (Div. 2) 2
296 Table Categories Codeforces Codeforces Round #209 (Div. 2) 2
297 Digital Counter Categories Codeforces Codeforces Round #282 (Div. 2) 2
298 Adding Digits Categories Codeforces Codeforces Round #158 (Div. 2) 2
299 Bark to Unlock Categories Codeforces Codeforces Round #438 by Sberbank and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 2
300 Book Replacement Categories Live Archive 2005 Asia - Tokyo 2
301 DZY Loves Hash Categories Codeforces Codeforces Round #255 (Div. 2) 2
302 PawnChess Categories Codeforces Codeforces Round #328 (Div. 2) 2
303 Vasily the Bear and Triangle Categories Codeforces Codeforces Round #195 (Div. 2) 2
304 Wasted Time Categories Codeforces Codeforces Beta Round #93 (Div. 2 Only) 2
305 Is it rated? Categories Codeforces Codeforces Round #412 (rated, Div. 2, base on VK Cup 2017 Round 3) 2
306 Ciel and Dancing Categories Codeforces Codeforces Round #190 (Div. 2) 2
307 SwapSort Categories Codeforces Codeforces Round #277.5 (Div. 2) 2
308 Bear and Game Categories Codeforces Codeforces Round #351 (VK Cup 2016 Round 3, Div. 2 Edition) 2
309 Good Number Categories Codeforces Codeforces Round #213 (Div. 2) 2
310 Chat Servers Outgoing Traffic Categories Codeforces Codeforces Beta Round #5 2
311 Mr. Kitayuta's Gift Categories Codeforces Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) 2
312 George and Sleep Categories Codeforces Codeforces Round #227 (Div. 2) 2
313 Cutting Banner Categories Codeforces Codeforces Round #300 2
314 Help Vasilisa the Wise 2 Categories Codeforces Codeforces Round #102 (Div. 2) 2
315 IQ Test Categories Codeforces Codeforces Round #176 (Div. 2) 2
316 The Child and Homework Categories Codeforces Codeforces Round #250 (Div. 2) 2
317 Interview with Oleg Categories Codeforces Technocup 2017 - Elimination Round 2 2
318 Xenia and Divisors Categories Codeforces Codeforces Round #199 (Div. 2) 2
319 Neverending competitions Categories Codeforces Codeforces Round #397 by Kaspersky Lab and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 2
320 Sagheer and Crossroads Categories Codeforces Codeforces Round #417 (Div. 2) 2
321 Dima and Continuous Line Categories Codeforces Codeforces Round #208 (Div. 2) 2
322 Vasya and Football Categories Codeforces Codeforces Round #281 (Div. 2) 2
323 Two Bags of Potatoes Categories Codeforces Codeforces Round #148 (Div. 2) 2
324 Okabe and Future Gadget Laboratory Categories Codeforces Codeforces Round #420 (Div. 2) 2
325 Little Elephant and Chess Categories Codeforces Codeforces Round #157 (Div. 2) 2
326 Palindromic Times Categories Codeforces Codeforces Beta Round #83 (Div. 2 Only) 2
327 Mashmokh and Lights Categories Codeforces Codeforces Round #240 (Div. 2) 2
328 Carrot Cakes Categories Codeforces Playrix Codescapes Cup (Codeforces Round #413, rated, Div. 1 + Div. 2) 2
329 Little Elephant and Rozdil Categories Codeforces Codeforces Round #129 (Div. 2) 2
330 Cupboards Categories Codeforces Codeforces Round #152 (Div. 2) 2
331 Chess Tourney Categories Codeforces Educational Codeforces Round 27 2
332 Next Test Categories Codeforces Codeforces Beta Round #27 (Codeforces format, Div. 2) 2
333 Saitama Destroys Hotel Categories Codeforces Codeforces Round #336 (Div. 2) 2
334 Chess For Three Categories Codeforces Educational Codeforces Round 33 (Rated for Div. 2) 2
335 Game Outcome Categories Codeforces Codeforces Round #110 (Div. 2) 2
336 Wilbur and Swimming Pool Categories Codeforces Codeforces Round #331 (Div. 2) 2
337 The Wall Categories Codeforces Codeforces Round #198 (Div. 2) 2
338 Second Order Statistics Categories Codeforces Codeforces Beta Round #22 (Div. 2 Only) 2
339 Group of Students Categories Codeforces Codeforces Round #207 (Div. 2) 2
340 Lever Categories Codeforces Codeforces Round #221 (Div. 2) 2
341 Vicious Keyboard Categories Codeforces Codeforces Round #409 (rated, Div. 2, based on VK Cup 2017 Round 2) 2
342 Mister B and Book Reading Categories Codeforces Codeforces Round #421 (Div. 2) 2
343 Sinking Ship Categories Codeforces Codeforces Beta Round #59 (Div. 2) 2
344 Chores Categories Codeforces Educational Codeforces Round 30 2
345 Display Size Categories Codeforces Codeforces Round #387 (Div. 2) 2
346 Petr and a calendar Categories Codeforces Codeforces Round #393 (Div. 2) (8VC Venture Cup 2017 - Final Round Div. 2 Edition) 2
347 Line to Cashier Categories Codeforces Codeforces Round #239 (Div. 2) 2
348 Yaroslav and Permutations Categories Codeforces Codeforces Round #179 (Div. 2) 2
349 Bank Robbery Categories Codeforces Tinkoff Challenge - Final Round (Codeforces Round #414, rated, Div. 1 + Div. 2) 2
350 Wizards and Demonstration Categories Codeforces Codeforces Round #114 (Div. 2) 2
351 Magic Spheres Categories Codeforces Codeforces Round #335 (Div. 2) 2
352 Factory Categories Codeforces Codeforces Round #276 (Div. 2) 2
353 Pouring Rain Categories Codeforces Codeforces Round #349 (Div. 2) 2
354 Shooshuns and Sequence Categories Codeforces Codeforces Round #137 (Div. 2) 2
355 Soroban Categories Codeforces Codeforces Round #211 (Div. 2) 2
356 Buggy Sorting Categories Codeforces Codeforces Round #151 (Div. 2) 2
357 Inna and Choose Options Categories Codeforces Codeforces Round #234 (Div. 2) 2
358 Kitahara Haruki's Gift Categories Codeforces Codeforces Round #248 (Div. 2) 2
359 Santa Claus and a Place in a Class Categories Codeforces Technocup 2017 - Elimination Round 3 2
360 Interview Categories Codeforces Codeforces Round #344 (Div. 2) 2
361 Vasya and Digital Root Categories Codeforces Codeforces Round #206 (Div. 2) 2
362 Vitaly and Strings Categories Codeforces Codeforces Round #293 (Div. 2) 2
363 Triangular numbers Categories Codeforces Codeforces Beta Round #44 (Div. 2) 2
364 Comparing Strings Categories Codeforces Codeforces Round #118 (Div. 2) 2
365 Bicycle Chain Categories Codeforces Codeforces Round #132 (Div. 2) 2
366 Kalevitch and Chess Categories Codeforces Codeforces Beta Round #7 3
367 Cards with Numbers Categories Codeforces Codeforces Round #155 (Div. 2) 3
368 Sereja and Bottles Categories Codeforces Codeforces Round #187 (Div. 2) 3
369 LLPS Categories Codeforces Codeforces Round #127 (Div. 2) 3
370 Dividing Orange Categories Codeforces Codeforces Round #150 (Div. 2) 3
371 Increasing Sequence Categories Codeforces Codeforces Beta Round #11 3
372 Sockets Categories Codeforces Codeforces Round #159 (Div. 2) 3
373 Exams Categories Codeforces Codeforces Round #122 (Div. 2) 3
374 Ball Game Categories Codeforces School Personal Contest #2 (Winter Computer School 2010/11) - Codeforces Beta Round #43 (ACM-ICPC Rules) 3
375 Music Categories Codeforces Codeforces Round #315 (Div. 2) 3
376 Dima and Guards Categories Codeforces Codeforces Round #214 (Div. 2) 3
377 Polo the Penguin and Segments Categories Codeforces Codeforces Round #177 (Div. 2) 3
378 Bar Categories Codeforces Codeforces Beta Round #52 (Div. 2) 3
379 Cube Root Categories Live Archive 2004 Europe - Southeastern 3
380 Petya and Java Categories Codeforces Codeforces Beta Round #61 (Div. 2) 3
381 Heads or Tails Categories Codeforces Codeforces Round #149 (Div. 2) 3
382 Postcards and photos Categories Codeforces Codeforces Beta Round #98 (Div. 2) 3
383 Haiku Categories Codeforces Codeforces Beta Round #70 (Div. 2) 3
384 Funky Numbers Categories Codeforces Codeforces Round #121 (Div. 2) 3
385 Guest From the Past Categories Codeforces Codeforces Round #342 (Div. 2) 3
386 K-Periodic Array Categories Codeforces Codeforces Round #218 (Div. 2) 3
387 Dice Tower Categories Codeforces Codeforces Round #139 (Div. 2) 3
388 Little Xor Categories Codeforces Codeforces Round #153 (Div. 2) 3
389 Guess a number! Categories Codeforces Codeforces Round #241 (Div. 2) 3
390 Johnny and the Watermelon Plantation Categories SPOJ 3
391 Letter Categories Codeforces Codeforces Beta Round #14 (Div. 2) 3
392 Nuts Categories Codeforces Codeforces Round #236 (Div. 2) 3
393 Whose sentence is it? Categories Codeforces Codeforces Round #185 (Div. 2) 3
394 Sleuth Categories Codeforces Codeforces Beta Round #46 (Div. 2) 3
395 Vasya and the Bus Categories Codeforces Codeforces Round #120 (Div. 2) 3
396 Point on Spiral Categories Codeforces Codeforces Round #171 (Div. 2) 3
397 Reconnaissance Categories Codeforces Codeforces Beta Round #32 (Div. 2, Codeforces format) 3
398 Snow Footprints Categories Codeforces Codeforces Round #180 (Div. 2) 3
399 Rook, Bishop and King Categories Codeforces Codeforces Round #217 (Div. 2) 3
400 Help Far Away Kingdom Categories Codeforces Codeforces Beta Round #78 (Div. 2 Only) 3
401 Numbers Categories Codeforces Codeforces Beta Round #13 3
402 Array Categories Codeforces Codeforces Round #138 (Div. 2) 3
403 Tiling with Hexagons Categories Codeforces Codeforces Round #133 (Div. 2) 3
404 The Map Categories SPOJ 3
405 Room Leader Categories Codeforces Codeforces Beta Round #68 3
406 Card Game Categories Codeforces Codeforces Beta Round #82 (Div. 2) 3
407 Noldbach problem Categories Codeforces Codeforces Beta Round #17 3
408 Worms Evolution Categories Codeforces Codeforces Beta Round #31 (Div. 2, Codeforces format) 3
409 Down the Hatch! Categories Codeforces Codeforces Round #193 (Div. 2) 3
410 Mike and Cellphone Categories Codeforces Codeforces Round #361 (Div. 2) 3
411 Two Problems Categories Codeforces Codeforces Round #128 (Div. 2) 3
412 Super Agent Categories Codeforces Codeforces Beta Round #12 (Div 2 Only) 3
413 New Year Table Categories Codeforces Codeforces Round #100 3
414 Cows and Primitive Roots Categories Codeforces Codeforces Round #174 (Div. 2) 3
415 Pythagorean Theorem II Categories Codeforces Codeforces Round #183 (Div. 2) 3
416 Let's Watch Football Categories Codeforces Codeforces Round #123 (Div. 2) 3
417 Irrational problem Categories Codeforces Codeforces Beta Round #62 4
418 Bus Game Categories Codeforces Codeforces Beta Round #71 4
419 BerOS file system Categories Codeforces Codeforces Alpha Round #20 (Codeforces format) 4
420 Lefthanders and Righthanders Categories Codeforces Codeforces Round #145 (Div. 2, ACM-ICPC Rules) 4
421 Where do I Turn? Categories Codeforces Codeforces Round #140 (Div. 2) 4
422 Spit Problem Categories Codeforces Codeforces Beta Round #29 (Div. 2, Codeforces format) 4
423 Ring road Categories Codeforces Codeforces Beta Round #24 4
424 Power Consumption Calculation Categories Codeforces Codeforces Beta Round #10 4
425 Where Are My Flakes? Categories Codeforces Codeforces Beta Round #56 4
426 You're Given a String... Categories Codeforces Codeforces Beta Round #23 4
427 Mountain Scenery Categories Codeforces Codeforces Round #134 (Div. 2) 4
428 Cableway Categories Codeforces Codeforces Beta Round #74 (Div. 2 Only) 4
429 Triangle Categories Codeforces Codeforces Beta Round #18 (Div. 2 Only) 4
430 Cookies Categories Codeforces Codeforces Beta Round #64 4
431 Two Semiknights Meet Categories Codeforces Codeforces Round #212 (Div. 2) 4
432 Strange Addition Categories Codeforces Codeforces Round #184 (Div. 2) 4
433 Plate Game Categories Codeforces Codeforces Round #124 (Div. 2) 4
434 Chord Categories Codeforces Codeforces Beta Round #73 (Div. 2 Only) 4
435 Train and Peter Categories Codeforces Codeforces Beta Round #8 4
436 Nineteen Categories Codeforces Codeforces Round #230 (Div. 2) 4
437 K-Palindrome Categories A2 Online Judge 4
438 Binary Search Categories Live Archive 2000 Europe - Northeastern 4
439 Shell Game Categories Codeforces Codeforces Beta Round #35 (Div. 2) 4
440 Autocomplete Categories Codeforces Codeforces Beta Round #49 (Div. 2) 4
441 A Student's Dream Categories Codeforces Codeforces Beta Round #58 4
442 Inna and Alarm Clock Categories Codeforces Codeforces Round #229 (Div. 2) 5
443 Game with String Categories Codeforces Codeforces Round #468 (Div. 1, based on Technocup 2018 Final Round) & Codeforces Round #468 (Div. 2, based on Technocup 2018 Final Round) 5
444 Accounting Categories Codeforces Codeforces Beta Round #30 (Codeforces format) 5
445 Find Color Categories Codeforces Codeforces Beta Round #39 5
446 Square Earth? Categories Codeforces Codeforces Beta Round #53 5
447 Pages Categories Codeforces Codeforces Round #233 (Div. 2) 5
448 Cottage Village Categories Codeforces Codeforces Beta Round #15 5
449 Chef and The Recursive Algorithm Categories CodeChef 5
450 World Football Cup Categories Codeforces Codeforces Beta Round #19 5
451 What is for dinner? Categories Codeforces Codeforces Beta Round #33 (Codeforces format) 5
452 Clothes Categories Codeforces Codeforces Beta Round #79 (Div. 2 Only) 5
453 Elevator Categories Codeforces Codeforces Beta Round #88 5
454 Flea travel Categories Codeforces Codeforces Beta Round #51 5
455 April Fools' Problem (easy) Categories Codeforces Helvetic Coding Contest 2017 online mirror (teams allowed, unrated) 5
456 Counting Sticks Categories Codeforces Codeforces Round #231 (Div. 2) 5
457 Points and Segments (easy) Categories Codeforces Codeforces Round #245 (Div. 2) 5
458 Guilty --- to the kitchen! Categories Codeforces Codeforces Beta Round #41 5
459 Robot Bicorn Attack Categories Codeforces Codeforces Round #115 5
460 Extra-terrestrial Intelligence Categories Codeforces Codeforces Beta Round #36 5
461 Rock-paper-scissors Categories Codeforces School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round #45 (ACM-ICPC Rules) 5
462 InfiniteSequence Categories TopCoder SRM 413 - Div2 hard] (13504) 5
463 Inna and Pink Pony Categories Codeforces Codeforces Round #220 (Div. 2) 5
464 Transmigration Categories Codeforces Codeforces Beta Round #81 6
465 Cheaterius's Problem Categories Codeforces Codeforces Beta Round #48 6
466 The Elder Trolls IV: Oblivon Categories Codeforces Codeforces Beta Round #66 6
467 On Segment's Own Points Categories Codeforces Codeforces Round #232 (Div. 2) 6
468 Harry Potter and Three Spells Categories Codeforces Codeforces Beta Round #60 6
469 Presents Categories Codeforces Codeforces Beta Round #50 6
470 Grasshopper Categories UVA 6
471 Bender Problem Categories Codeforces Codeforces Beta Round #28 (Codeforces format) 7
472 Vasya and Types Categories Codeforces Codeforces Beta Round #73 (Div. 1 Only) & Codeforces Beta Round #73 (Div. 2 Only) 7
473 Jabber ID Categories Codeforces Codeforces Alpha Round #21 (Codeforces format) 7
474 Prefix Sums Categories Codeforces Educational Codeforces Round 26 8
475 Cinema Categories Codeforces Codeforces Round #126 (Div. 2) 8
476 Defragmentation Categories Codeforces Codeforces Round #116 (Div. 2, ACM-ICPC Rules) 8
477 Amr and Math Categories SPOJ 8
478 Watermelons Categories TJU 8
479 Battlefield Categories Codeforces Codeforces Round #117 (Div. 2) 9
480 Flags Categories Codeforces Codeforces Beta Round #76 (Div. 1 Only) 9
481 Dynamic Programming Categories A2 Online Judge 10
482 bfs Categories SPOJ 10