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brute force problems
Problem Name Online Judge Year Contest Difficulty Level
1 Mike and palindrome Categories Codeforces Codeforces Round #410 (Div. 2) 1
2 Two Substrings Categories Codeforces Codeforces Round #306 (Div. 2) 1
3 Appleman and Easy Task Categories Codeforces Codeforces Round #263 (Div. 2) 1
4 Dreamoon and WiFi Categories Codeforces Codeforces Round #272 (Div. 2) 1
5 Grouping Problem Categories TJU 1
6 Minimum Difficulty Categories Codeforces Codeforces Round #283 (Div. 2) 1
7 Han Solo and Lazer Gun Categories Codeforces Codeforces Round #291 (Div. 2) 1
8 Array Categories Codeforces Codeforces Round #181 (Div. 2) 1
9 Taymyr is calling you Categories Codeforces Codeforces Round #395 (Div. 2) 1
10 Candy I Categories SPOJ 1
11 Ice Skating Categories Codeforces Codeforces Round #134 (Div. 1) & Codeforces Round #134 (Div. 2) 1
12 Games Categories Codeforces Codeforces Round #164 (Div. 2) 1
13 Burger Time? Categories UVA 1
14 Soldier and Cards Categories Codeforces Codeforces Round #304 (Div. 2) 1
15 System of Equations Categories Codeforces Codeforces Round #131 (Div. 2) 1
16 Vasya and Socks Categories Codeforces Codeforces Round #262 (Div. 2) 1
17 Cut Ribbon Categories Codeforces Codeforces Round #119 (Div. 2) 1
18 Magic Numbers Categories Codeforces Codeforces Round #189 (Div. 2) 1
19 Kefa and First Steps Categories Codeforces Codeforces Round #321 (Div. 2) 1
20 Generous Kefa Categories Codeforces Codeforces Round #429 (Div. 2) 1
21 Preparing Olympiad Categories Codeforces Codeforces Round #306 (Div. 2) 1
22 Lala Land and Apple Trees Categories Codeforces Codeforces Round #312 (Div. 2) 1
23 Books Categories Codeforces Codeforces Round #171 (Div. 2) 1
24 TL Categories Codeforces Codeforces Round #203 (Div. 2) 1
25 The Artful Expedient Categories Codeforces Codeforces Round #439 (Div. 2) 1
26 Bus to Udayland Categories Codeforces Codeforces Round #369 (Div. 2) 1
27 I_love_\%username\% Categories Codeforces Codeforces Round #109 (Div. 2) 1
28 Parallelepiped Categories Codeforces Codeforces Round #138 (Div. 2) 1
29 Beautiful Year Categories Codeforces Codeforces Round #166 (Div. 2) 1
30 Karen and Morning Categories Codeforces Codeforces Round #419 (Div. 2) 1
31 Pangram Categories Codeforces Codeforces Round #295 (Div. 2) 1
32 Kyoya and Photobooks Categories Codeforces Codeforces Round #309 (Div. 2) 1
33 Maximum in Table Categories Codeforces Codeforces Round #289 (Div. 2, ACM ICPC Rules) 1
34 Flipping Game Categories Codeforces Codeforces Round #191 (Div. 2) 1
35 Triangle Categories Codeforces Codeforces Beta Round #6 (Div. 2 Only) 1
36 Playing with Dice Categories Codeforces Codeforces Round #222 (Div. 2) 1
37 Divisibility by Eight Categories Codeforces Codeforces Round #306 (Div. 2) 1
38 Expression Categories Codeforces Codeforces Round #274 (Div. 2) 1
39 Fence Categories Codeforces Codeforces Round #211 (Div. 2) 1
40 Vladik and Courtesy Categories Codeforces Codeforces Round #416 (Div. 2) 1
41 Team Categories Codeforces Codeforces Round #143 (Div. 2) 1
42 Giga Tower Categories Codeforces Codeforces Round #278 (Div. 2) 1
43 Mike and Fax Categories Codeforces Codeforces Round #305 (Div. 2) 1
44 The Monster Categories Codeforces Codeforces Round #406 (Div. 2) 1
45 Cakeminator Categories Codeforces Codeforces Round #192 (Div. 2) 1
46 Gerald's Hexagon Categories Codeforces Codeforces Round #313 (Div. 1) & Codeforces Round #313 (Div. 2) 1
47 Number of Ways Categories Codeforces Codeforces Round #266 (Div. 2) 1
48 QAQ Categories Codeforces Codeforces Round #447 (Div. 2) 1
49 Amr and Pins Categories Codeforces Codeforces Round #287 (Div. 2) 1
50 Far Relative’s Birthday Cake Categories Codeforces Codeforces Round #343 (Div. 2) 1
51 Hexadecimal's theorem Categories Codeforces Codeforces Round #125 (Div. 2) 1
52 Beru-taxi Categories Codeforces Codeforces Round #367 (Div. 2) 1
53 Tavas and SaDDas Categories Codeforces Codeforces Round #299 (Div. 2) 1
54 Lucky Sum of Digits Categories Codeforces Codeforces Beta Round #84 (Div. 1 Only) & Codeforces Beta Round #84 (Div. 2 Only) 1
55 Lucky Division Categories Codeforces Codeforces Beta Round #91 (Div. 2 Only) 1
56 IQ test Categories Codeforces Codeforces Beta Round #25 (Div. 2 Only) 1
57 Watermelon Categories Codeforces Codeforces Beta Round #4 (Div. 2 Only) 1
58 Fedor and New Game Categories Codeforces Codeforces Round #267 (Div. 2) 1
59 Counterexample Categories Codeforces Codeforces Round #275 (Div. 2) 1
60 Bear and Raspberry Categories Codeforces Codeforces Round #226 (Div. 2) 1
61 Fraction Categories Codeforces Codeforces Round #433 (Div. 2, based on Olympiad of Metropolises) 1
62 Jeff and Digits Categories Codeforces Codeforces Round #204 (Div. 2) 1
63 Soldier and Badges Categories Codeforces Codeforces Round #304 (Div. 2) 1
64 Panoramix's Prediction Categories Codeforces Codeforces Beta Round #69 (Div. 2 Only) 1
65 Play with Dates Categories SPOJ 1
66 Candy Categories SPOJ 1
67 Dima and Continuous Line Categories Codeforces Codeforces Round #208 (Div. 2) 2
68 Ice Sculptures Categories Codeforces VK Cup 2012 Qualification Round 1 2
69 Cutting Banner Categories Codeforces Codeforces Round #300 2
70 Multiplication Table Categories Codeforces Codeforces Round #256 (Div. 2) 2
71 Lucky Substring Categories Codeforces Codeforces Beta Round #91 (Div. 2 Only) 2
72 Ebony and Ivory Categories Codeforces Manthan, Codefest 16 2
73 Chtholly's request Categories Codeforces Codeforces Round #449 (Div. 2) 2
74 Robot Sequence Categories Codeforces 8VC Venture Cup 2016 - Elimination Round 2
75 Valuable Resources Categories Codeforces Codeforces Round #276 (Div. 2) 2
76 Bear and Strings Categories Codeforces Codeforces Round #226 (Div. 2) 2
77 Polo the Penguin and Matrix Categories Codeforces Codeforces Round #177 (Div. 2) 2
78 Ilya and tic-tac-toe game Categories Codeforces Codeforces Round #390 (Div. 2) 2
79 Interview Categories Codeforces Codeforces Round #344 (Div. 2) 2
80 Pasha and Pixels Categories Codeforces Codeforces Round #288 (Div. 2) 2
81 Mike and strings Categories Codeforces Codeforces Round #410 (Div. 2) 2
82 Second Order Statistics Categories Codeforces Codeforces Beta Round #22 (Div. 2 Only) 2
83 GRADE POINT AVERAGE Categories SPOJ 2
84 Hacking Cypher Categories Codeforces Codeforces Round #279 (Div. 2) 2
85 Little Elephant and Chess Categories Codeforces Codeforces Round #157 (Div. 2) 2
86 Shower Line Categories Codeforces Codeforces Round #247 (Div. 2) 2
87 Another Problem on Strings Categories Codeforces Codeforces Round #112 (Div. 2) 2
88 Tourist's Notes Categories Codeforces Codeforces Round #300 2
89 Restoring Painting Categories Codeforces Codeforces Round #353 (Div. 2) 2
90 Hexadecimal's Numbers Categories Codeforces Codeforces Beta Round #9 (Div. 2 Only) 2
91 2Char Categories Codeforces Codeforces Round #329 (Div. 2) 2
92 Drazil and His Happy Friends Categories Codeforces Codeforces Round #292 (Div. 1) & Codeforces Round #292 (Div. 2) & Codeforces Round #292 (Div. 1) & Codeforces Round #292 (Div. 2) 2
93 Bear and Three Musketeers Categories Codeforces Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) 2
94 Little Dima and Equation Categories Codeforces Codeforces Round #262 (Div. 2) 2
95 Kirill And The Game Categories Codeforces Codeforces Round #430 (Div. 2) 2
96 Sail Categories Codeforces Codeforces Round #180 (Div. 2) 2
97 Lucky Numbers (easy) Categories Codeforces Codeforces Beta Round #77 (Div. 2 Only) 2
98 Pride Categories Codeforces Codeforces Round #446 (Div. 1) & Codeforces Round #446 (Div. 2) 2
99 Mr. Kitayuta's Colorful Graph Categories Codeforces Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) 2
100 Little Elephant and Rozdil Categories Codeforces Codeforces Round #129 (Div. 2) 2
101 Okabe and Banana Trees Categories Codeforces Codeforces Round #420 (Div. 2) 2
102 Football Kit Categories Codeforces Codeforces Round #246 (Div. 2) 2
103 Economy Game Categories Codeforces Codeforces Round #357 (Div. 2) 2
104 Removing Columns Categories Codeforces Codeforces Round #283 (Div. 2) & Codeforces Round #283 (Div. 1) 2
105 Strongly Connected City Categories Codeforces Bayan 2015 Contest Warm Up 2
106 Triangular numbers Categories Codeforces Codeforces Beta Round #44 (Div. 2) 2
107 Bear and Three Balls Categories Codeforces IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) 2
108 Prime Matrix Categories Codeforces Codeforces Round #166 (Div. 2) 2
109 Vicious Keyboard Categories Codeforces Codeforces Round #409 (rated, Div. 2, based on VK Cup 2017 Round 2) 2
110 Bicycle Chain Categories Codeforces Codeforces Round #132 (Div. 2) 2
111 Ohana Cleans Up Categories Codeforces Codeforces Round #309 (Div. 2) 2
112 Group of Students Categories Codeforces Codeforces Round #207 (Div. 2) 2
113 Thor Categories Codeforces Codeforces Round #366 (Div. 1) & Codeforces Round #366 (Div. 2) 2
114 Little Elephant and Magic Square Categories Codeforces Codeforces Round #157 (Div. 2) 2
115 Letters Categories Codeforces Codeforces Round #481 (Div. 3) 2
116 Link/Cut Tree Categories Codeforces Codeforces Round #339 (Div. 2) 2
117 Mr. Kitayuta's Colorful Graph Categories Codeforces Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) & Codeforces Round #286 (Div. 2) 2
118 Towers Categories Codeforces Codeforces Round #274 (Div. 2) 2
119 Alyona and copybooks Categories Codeforces Codeforces Round #381 (Div. 2) 2
120 Kitahara Haruki's Gift Categories Codeforces Codeforces Round #248 (Div. 2) 2
121 Vladik and fractions Categories Codeforces Codeforces Round #384 (Div. 2) 2
122 George and Round Categories Codeforces Codeforces Round #227 (Div. 2) 2
123 Mike and Fun Categories Codeforces Codeforces Round #305 (Div. 2) 2
124 Case of Fake Numbers Categories Codeforces Codeforces Round #310 (Div. 2) 2
125 Game Outcome Categories Codeforces Codeforces Round #110 (Div. 2) 2
126 Shooshuns and Sequence Categories Codeforces Codeforces Round #137 (Div. 2) 2
127 Simple Molecules Categories Codeforces Codeforces Round #200 (Div. 2) 2
128 Pizza Separation Categories Codeforces Codeforces Round #448 (Div. 2) 2
129 Help Vasilisa the Wise 2 Categories Codeforces Codeforces Round #102 (Div. 2) 2
130 IQ Test Categories Codeforces Codeforces Round #176 (Div. 2) 2
131 Parallelogram is Back Categories Codeforces Codeforces Round #388 (Div. 2) 2
132 Prizes, Prizes, more Prizes Categories Codeforces Codeforces Round #130 (Div. 2) 2
133 Far Relative’s Problem Categories Codeforces Codeforces Round #343 (Div. 2) 2
134 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
135 Hamburgers Categories Codeforces Codeforces Round #218 (Div. 2) 2
136 Petya and Countryside Categories Codeforces Codeforces Beta Round #61 (Div. 2) 2
137 New Year and Old Property Categories Codeforces Good Bye 2015 2
138 Two Problems Categories Codeforces Codeforces Round #128 (Div. 2) 3
139 Mahmoud and a Message Categories Codeforces Codeforces Round #396 (Div. 2) 3
140 Students and Shoelaces Categories Codeforces Codeforces Beta Round #94 (Div. 2 Only) 3
141 Reconnaissance Categories Codeforces Codeforces Beta Round #32 (Div. 2, Codeforces format) 3
142 Vasya and Robot Categories Codeforces Codeforces Round #206 (Div. 1) & Codeforces Round #206 (Div. 2) 3
143 A + B Strikes Back Categories Codeforces April Fools Day Contest 2014 3
144 Robbers' watch Categories Codeforces Codeforces Round #359 (Div. 1) & Codeforces Round #359 (Div. 2) 3
145 Tic-tac-toe Categories Codeforces Codeforces Beta Round #3 3
146 The Text Splitting Categories Codeforces Educational Codeforces Round 4 3
147 Colorful Graph Categories Codeforces Codeforces Round #151 (Div. 2) 3
148 Masha and geometric depression Categories Codeforces Codeforces Round #407 (Div. 2) 3
149 A Trivial Problem Categories Codeforces Manthan, Codefest 16 3
150 Block Towers Categories Codeforces 8VC Venture Cup 2016 - Elimination Round 3
151 Secret Combination Categories Codeforces Codeforces Round #283 (Div. 2) 3
152 Coach Categories Codeforces Codeforces Round #181 (Div. 2) 3
153 Let's Watch Football Categories Codeforces Codeforces Round #123 (Div. 2) 3
154 Dima and To-do List Categories Codeforces Codeforces Round #214 (Div. 2) 3
155 Bear and Prime Numbers Categories Codeforces Codeforces Round #226 (Div. 2) 3
156 Ball Game Categories Codeforces School Personal Contest #2 (Winter Computer School 2010/11) - Codeforces Beta Round #43 (ACM-ICPC Rules) 3
157 Heads or Tails Categories Codeforces Codeforces Round #149 (Div. 2) 3
158 Art Union Categories Codeforces Codeforces Round #241 (Div. 2) 3
159 Funky Numbers Categories Codeforces Codeforces Round #121 (Div. 2) 3
160 Polo the Penguin and Segments Categories Codeforces Codeforces Round #177 (Div. 2) 3
161 Dress'em in Vests! Categories Codeforces VK Cup 2012 Round 1 3
162 An impassioned circulation of affection Categories Codeforces Codeforces Round #418 (Div. 2) 3
163 Searching for Graph Categories Codeforces Codeforces Round #236 (Div. 2) & Codeforces Round #236 (Div. 1) 3
164 Non-square Equation Categories Codeforces Codeforces Round #144 (Div. 2) 3
165 Color Stripe Categories Codeforces Codeforces Round #135 (Div. 2) 3
166 LLPS Categories Codeforces Codeforces Round #127 (Div. 2) 3
167 Catch Me If You Can Categories SPOJ 3
168 Gennady the Dentist Categories Codeforces Codeforces Round #325 (Div. 1) & Codeforces Round #325 (Div. 2) 3
169 Little Xor Categories Codeforces Codeforces Round #153 (Div. 2) 3
170 Cows and Poker Game Categories Codeforces Codeforces Round #174 (Div. 2) 3
171 Common Divisors Categories Codeforces Codeforces Round #117 (Div. 2) 3
172 Triangle Categories Codeforces Codeforces Round #239 (Div. 1) & Codeforces Round #239 (Div. 2) 3
173 Perfect Pair Categories Codeforces Codeforces Round #188 (Div. 1) & Codeforces Round #188 (Div. 2) 3
174 Noldbach problem Categories Codeforces Codeforces Beta Round #17 3
175 Phone Code Categories Codeforces Croc Champ 2012 - Qualification Round 3
176 Pythagorean Theorem II Categories Codeforces Codeforces Round #183 (Div. 2) 3
177 Karen and Game Categories Codeforces Codeforces Round #419 (Div. 1) & Codeforces Round #419 (Div. 2) 3
178 "Or" Game Categories Codeforces Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] & Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] 3
179 Bear and Compressing Categories Codeforces IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) 3
180 Point on Spiral Categories Codeforces Codeforces Round #171 (Div. 2) 3
181 Permutations Categories Codeforces Rockethon 2015 3
182 Sereja and Bottles Categories Codeforces Codeforces Round #187 (Div. 2) 3
183 Sagheer, the Hausmeister Categories Codeforces Codeforces Round #417 (Div. 2) 3
184 Kalevitch and Chess Categories Codeforces Codeforces Beta Round #7 3
185 Vasya and Basketball Categories Codeforces Codeforces Round #281 (Div. 2) 3
186 Inna and New Matrix of Candies Categories Codeforces Codeforces Round #234 (Div. 2) 3
187 Primes or Palindromes? Categories Codeforces Codeforces Round #315 (Div. 1) & Codeforces Round #315 (Div. 2) 3
188 Vanya and Scales Categories Codeforces Codeforces Round #308 (Div. 2) 3
189 Mike and Cellphone Categories Codeforces Codeforces Round #361 (Div. 2) 3
190 King of Thieves Categories Codeforces ZeptoLab Code Rush 2015 3
191 Finding Team Member Categories Codeforces Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] 3
192 Unbearable Controversy of Being Categories Codeforces Codeforces Round #277.5 (Div. 2) 3
193 New Problem Categories Codeforces Codeforces Round #170 (Div. 2) 4
194 Arthur and Table Categories Codeforces Codeforces Round #311 (Div. 2) 4
195 View Angle Categories Codeforces Codeforces Round #159 (Div. 2) 4
196 Two Tables Categories Codeforces Codeforces Round #141 (Div. 2) 4
197 Balls Game Categories Codeforces Codeforces Round #245 (Div. 2) 4
198 Roads not only in Berland Categories Codeforces Codeforces Beta Round #25 (Div. 2 Only) 4
199 Palindrome pairs Categories Codeforces VK Cup 2012 Qualification Round 2 4
200 Running Student Categories Codeforces Codeforces Beta Round #9 (Div. 2 Only) 4
201 Letter Categories Codeforces Codeforces Round #116 (Div. 2, ACM-ICPC Rules) 4
202 MUH and House of Cards Categories Codeforces Codeforces Round #269 (Div. 2) 4
203 Lucky Mask Categories Codeforces Codeforces Round #104 (Div. 2) 4
204 TWO BISHOPS Categories SPOJ 4
205 Game of the Rows Categories Codeforces Codeforces Round #428 (Div. 2) 4
206 Devu and Partitioning of the Array Categories Codeforces Codeforces Round #251 (Div. 2) 4
207 Elevator Categories Codeforces School Regional Team Contest, Saratov, 2011 4
208 Brute-force Algorithm Categories Live Archive 2009 Asia - Shanghai 4
209 Pair of Numbers Categories Codeforces Codeforces Round #209 (Div. 2) 4
210 String Manipulation 1.0 Categories Codeforces VK Cup 2012 Qualification Round 2 4
211 Tournament Categories Codeforces Codeforces Beta Round #27 (Codeforces format, Div. 2) 4
212 Shifts Categories Codeforces Codeforces Round #142 (Div. 1) & Codeforces Round #142 (Div. 2) 4
213 Tell Your World Categories Codeforces Codeforces Round #431 (Div. 2) 4
214 Trees in a Row Categories Codeforces Codeforces Round #236 (Div. 2) 4
215 Captain Marmot Categories Codeforces Codeforces Round #271 (Div. 2) 4
216 Fight the Monster Categories Codeforces Codeforces Round #278 (Div. 1) & Codeforces Round #278 (Div. 2) 4
217 Amity Assessment Categories Codeforces CROC 2016 - Elimination Round 4
218 Hometask Categories Codeforces Codeforces Round #131 (Div. 2) 4
219 Alice, Bob, Two Teams Categories Codeforces Educational Codeforces Round 9 4
220 Counting Rhombi Categories Codeforces Codeforces Round #119 (Div. 2) 4
221 Choosing Laptop Categories Codeforces Codeforces Beta Round #82 (Div. 2) 4
222 Three Logos Categories Codeforces Codeforces Round #322 (Div. 2) 4
223 Mountain Scenery Categories Codeforces Codeforces Round #134 (Div. 2) 4
224 Amr and Chemistry Categories Codeforces Codeforces Round #312 (Div. 2) 4
225 Wonder Room Categories Codeforces Codeforces Round #266 (Div. 2) 4
226 Ancient Prophesy Categories Codeforces Codeforces Round #158 (Div. 2) 4
227 Predict Outcome of the Game Categories Codeforces Codeforces Round #258 (Div. 2) 4
228 Resort Categories Codeforces Codeforces Round #203 (Div. 2) 4
229 Weird Chess Categories Codeforces Codeforces Round #300 4
230 Beautiful Numbers Categories Codeforces Codeforces Round #181 (Div. 2) 4
231 Message Categories Codeforces Codeforces Round #110 (Div. 1) & Codeforces Round #110 (Div. 2) 4
232 Strange Addition Categories Codeforces Codeforces Round #184 (Div. 2) 4
233 Undoubtedly Lucky Numbers Categories Codeforces Codeforces Round #150 (Div. 2) 4
234 Xenia and Spies Categories Codeforces Codeforces Round #199 (Div. 2) 4
235 Fox And Jumping Categories Codeforces Codeforces Round #290 (Div. 2) & Codeforces Round #290 (Div. 1) 4
236 Kolya and Tandem Repeat Categories Codeforces Codeforces Round #253 (Div. 2) 4
237 You're Given a String... Categories Codeforces Codeforces Beta Round #23 4
238 Fire Again Categories Codeforces Codeforces Beta Round #35 (Div. 2) 4
239 Ksusha and Array Categories Codeforces Croc Champ 2013 - Round 2 (Div. 2 Edition) 4
240 Walking in the Rain Categories Codeforces Codeforces Round #121 (Div. 2) 4
241 Tennis Game Categories Codeforces Codeforces Round #283 (Div. 2) & Codeforces Round #283 (Div. 1) 4
242 ZgukistringZ Categories Codeforces Codeforces Round #307 (Div. 2) 4
243 Sereja and Prefixes Categories Codeforces Codeforces Round #223 (Div. 1) & Codeforces Round #223 (Div. 2) 4
244 Little Pony and Harmony Chest Categories Codeforces Codeforces Round #259 (Div. 1) & Codeforces Round #259 (Div. 2) 4
245 Spit Problem Categories Codeforces Codeforces Beta Round #29 (Div. 2, Codeforces format) 4
246 Orchestra Categories Codeforces 8VC Venture Cup 2016 - Final Round (Div. 2 Edition) & 8VC Venture Cup 2016 - Final Round (Div. 1 Edition) 4
247 Magic Box Categories Codeforces Codeforces Round #143 (Div. 2) 4
248 Little Elephant and Sorting Categories Codeforces Codeforces Round #129 (Div. 2) 4
249 Chord Categories Codeforces Codeforces Beta Round #73 (Div. 2 Only) 4
250 Almost Arithmetical Progression Categories Codeforces Codeforces Round #156 (Div. 2) & Codeforces Round #156 (Div. 1) 4
251 Dima and Text Messages Categories Codeforces Codeforces Round #208 (Div. 2) 4
252 Sereja and Swaps Categories Codeforces Codeforces Round #243 (Div. 1) & Codeforces Round #243 (Div. 2) 4
253 DZY Loves Modification Categories Codeforces Codeforces Round #255 (Div. 1) & Codeforces Round #255 (Div. 2) 4
254 Remove Extra One Categories Codeforces Codeforces Round #450 (Div. 2) 4
255 Minion Circle Categories CodeChef 4
256 Promocodes with Mistakes Categories Codeforces VK Cup 2016 - Qualification Round 1 4
257 Vanya and Triangles Categories Codeforces Codeforces Round #308 (Div. 2) 4
258 Triangle Categories Codeforces Codeforces Beta Round #18 (Div. 2 Only) 4
259 Spongebob and Squares Categories Codeforces Codeforces Round #332 (Div. 2) 4
260 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
261 Beauty Pageant Categories Codeforces Codeforces Round #151 (Div. 2) 5
262 Roman and Numbers Categories Codeforces Codeforces Round #235 (Div. 2) 5
263 Om Nom and Candies Categories Codeforces ZeptoLab Code Rush 2015 5
264 Robot Bicorn Attack Categories Codeforces Codeforces Round #115 5
265 Petya and His Friends Categories Codeforces Codeforces Beta Round #61 (Div. 2) 5
266 Continued Fractions Categories Codeforces Codeforces Round #184 (Div. 2) 5
267 Bitwise Formula Categories Codeforces Codeforces Round #402 (Div. 1) & Codeforces Round #402 (Div. 2) 5
268 Counting Rectangles is Fun Categories Codeforces Codeforces Round #219 (Div. 1) & Codeforces Round #219 (Div. 2) 5
269 Game on Paper Categories Codeforces Codeforces Round #128 (Div. 2) 5
270 Permutations Categories Codeforces Codeforces Beta Round #92 (Div. 2 Only) 5
271 Martian Dollar Categories Codeforces Codeforces Beta Round #40 (Div. 2) 5
272 Series of Crimes Categories Codeforces Croc Champ 2012 - Round 2 (Unofficial Div. 2 Edition) 5
273 Clothes Categories Codeforces Codeforces Beta Round #79 (Div. 2 Only) 5
274 Compatible Numbers Categories Codeforces Codeforces Round #112 (Div. 2) 5
275 Network Mask Categories Codeforces Croc Champ 2013 - Qualification Round 5
276 Jury Size Categories Codeforces Codeforces Round #155 (Div. 2) 5
277 Brute-force Algorithm EXTREME Categories SPOJ 5
278 Vasya and Beautiful Arrays Categories Codeforces Codeforces Round #206 (Div. 1) & Codeforces Round #206 (Div. 2) 5
279 Mike and Frog Categories Codeforces Codeforces Round #305 (Div. 1) & Codeforces Round #305 (Div. 2) 5
280 Borya and Hanabi Categories Codeforces Codeforces Round #253 (Div. 1) & Codeforces Round #253 (Div. 2) 5
281 Three Sons Categories Codeforces School Regional Team Contest, Saratov, 2011 5
282 Bargaining Table Categories Codeforces Codeforces Beta Round #22 (Div. 2 Only) 5
283 Petr# Categories Codeforces Codeforces Beta Round #86 (Div. 1 Only) & Codeforces Beta Round #86 (Div. 2 Only) 5
284 The Queue Categories Codeforces Codeforces Round #398 (Div. 2) 5
285 Skills Categories Codeforces Codeforces Round #339 (Div. 1) & Codeforces Round #339 (Div. 2) 5
286 Chocolate Categories Codeforces Codeforces Round #279 (Div. 2) 5
287 Restore Cube Categories Codeforces Codeforces Round #265 (Div. 1) 5
288 Help Farmer Categories Codeforces Codeforces Round #102 (Div. 1) & Codeforces Round #102 (Div. 2) 5
289 Nearest Fraction Categories Codeforces Codeforces Round #172 (Div. 2) 5
290 Number With The Given Amount Of Divisors Categories Codeforces Codeforces Beta Round #27 (Codeforces format, Div. 2) 5
291 Fibonacci-ish Categories Codeforces Manthan, Codefest 16 5
292 Shopping Categories Codeforces Educational Codeforces Round 12 5
293 Four Segments Categories Codeforces Codeforces Beta Round #14 (Div. 2) 5
294 Jerry's Protest Categories Codeforces 8VC Venture Cup 2016 - Elimination Round 5
295 PFAST Inc. Categories Codeforces Codeforces Beta Round #86 (Div. 2 Only) 5
296 Broken checker Categories Codeforces April Fools Day Contest 5
297 Rectangle and Square Categories Codeforces Codeforces Beta Round #97 (Div. 1) & Codeforces Beta Round #97 (Div. 2) 5
298 Average Numbers Categories Codeforces Codeforces Testing Round #3 5
299 Hanoi Factory Categories Codeforces Codeforces Round #401 (Div. 2) 5
300 4-point polyline Categories Codeforces MemSQL Start[c]UP 2.0 - Round 1 5
301 Chocolate Bar Categories Codeforces Educational Codeforces Round 1 5
302 Candy Boxes Categories Codeforces Codeforces Round #278 (Div. 2) 5
303 CGCDSSQ Categories Codeforces Bayan 2015 Contest Warm Up 5
304 Chess Categories Codeforces School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) 5
305 Boulevard Categories Codeforces 2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) 5
306 Inversions problem Categories Codeforces Rockethon 2015 5
307 Ksusha the Squirrel Categories Codeforces Croc Champ 2013 - Round 2 (Div. 2 Edition) 5
308 Vasily the Bear and Sequence Categories Codeforces Codeforces Round #195 (Div. 2) 5
309 Accounting Categories Codeforces Codeforces Beta Round #30 (Codeforces format) 5
310 Fancy Number Categories Codeforces Codeforces Beta Round #89 (Div. 2) 5
311 Calendar Categories Codeforces Codeforces Round #183 (Div. 2) 5
312 Bear and Up-Down Categories Codeforces IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) 6
313 Land Lot Categories Codeforces School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round #45 (ACM-ICPC Rules) 6
314 Lucky Probability Categories Codeforces Codeforces Beta Round #84 (Div. 1 Only) & Codeforces Beta Round #84 (Div. 2 Only) 6
315 Blinds Categories Codeforces School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) 6
316 EKG Categories Codeforces ABBYY Cup 3.0 6
317 Platforms Categories Codeforces Codeforces Beta Round #18 (Div. 2 Only) 6
318 Heroes Categories Codeforces Codeforces Beta Round #69 (Div. 1 Only) & Codeforces Beta Round #69 (Div. 2 Only) 6
319 Vanya and Brackets Categories Codeforces Codeforces Round #308 (Div. 2) 6
320 Wonderful Randomized Sum Categories Codeforces Codeforces Beta Round #33 (Codeforces format) 6
321 Little Elephant and Elections Categories Codeforces Codeforces Round #157 (Div. 1) & Codeforces Round #157 (Div. 2) 6
322 Caisa and Tree Categories Codeforces Codeforces Round #264 (Div. 2) 6
323 New Year Cards Categories Codeforces Codeforces Round #100 6
324 Divisors Categories Codeforces Codeforces Round #256 (Div. 2) 6
325 Characteristics of Rectangles Categories Codeforces Codeforces Round #194 (Div. 1) 6
326 Sum of Medians Categories Codeforces Yandex.Algorithm 2011 Round 1 6
327 Karen and Supermarket Categories Codeforces Codeforces Round #419 (Div. 1) & Codeforces Round #419 (Div. 2) 6
328 Maximal Area Quadrilateral Categories Codeforces Codeforces Round #198 (Div. 2) 6
329 Little Elephant and LCM Categories Codeforces Codeforces Round #157 (Div. 1) & Codeforces Round #157 (Div. 2) 6
330 Smallest number Categories Codeforces Codeforces Beta Round #51 6
331 Hot Bath Categories Codeforces Codeforces Beta Round #93 (Div. 1 Only) & Codeforces Beta Round #93 (Div. 2 Only) 6
332 Number of Triplets Categories Codeforces Croc Champ 2012 - Round 2 (Unofficial Div. 2 Edition) 6
333 Time to Raid Cowavans Categories Codeforces Codeforces Beta Round #80 (Div. 1 Only) & Codeforces Beta Round #80 (Div. 2 Only) 6
334 Summer Homework Categories Codeforces ABBYY Cup 3.0 6
335 Harry Potter and the History of Magic Categories Codeforces Codeforces Beta Round #60 6
336 Fly, freebies, fly! Categories Codeforces Testing Round #9 6
337 FLING1 Categories SPOJ 6
338 Karen and Test Categories Codeforces Codeforces Round #419 (Div. 1) & Codeforces Round #419 (Div. 2) 6
339 Kingdoms Categories UVA 6
340 Lucky Permutation Categories Codeforces Codeforces Beta Round #91 (Div. 1 Only) & Codeforces Beta Round #91 (Div. 2 Only) 6
341 Longest Subsequence Categories Codeforces Educational Codeforces Round 9 6
342 Lizards and Basements 2 Categories Codeforces Codeforces Beta Round #6 (Div. 2 Only) 6
343 Restoring Increasing Sequence Categories Codeforces Codeforces Round #279 (Div. 2) 6
344 New Year Letter Categories Codeforces Good Bye 2013 6
345 Trees Categories Codeforces Codeforces Beta Round #54 (Div. 2) 6
346 Encrypting Messages Categories Codeforces ABBYY Cup 2.0 - Easy 6
347 A Heap of Heaps Categories Codeforces Codeforces Round #300 6
348 Bulls and Cows Categories Codeforces Codeforces Beta Round #59 (Div. 2) 6
349 Vladik and cards Categories Codeforces Codeforces Round #384 (Div. 2) 6
350 Anya and Cubes Categories Codeforces Codeforces Round #297 (Div. 2) 6
351 Very Interesting Game Categories Codeforces Codeforces Beta Round #88 6
352 Oh Sweet Beaverette Categories Codeforces ABBYY Cup 3.0 - Finals (online version) 6
353 Party Categories Codeforces ABBYY Cup 2.0 - Easy 6
354 Unsorting Array Categories Codeforces Codeforces Round #153 (Div. 2) 6
355 String Categories Codeforces Codeforces Beta Round #94 (Div. 1 Only) & Codeforces Beta Round #94 (Div. 2 Only) 6
356 Easy Tape Programming Categories Codeforces Codeforces Round #148 (Div. 2) 6
357 Ants Categories Codeforces Codeforces Round #188 (Div. 1) & Codeforces Round #188 (Div. 2) 6
358 Mr. Bender and Square Categories Codeforces Codeforces Round #156 (Div. 2) & Codeforces Round #156 (Div. 1) 6
359 Blackboard Fibonacci Categories Codeforces Codeforces Round #134 (Div. 1) & Codeforces Round #134 (Div. 2) 7
360 Subset Sums Categories Codeforces Codeforces Round #202 (Div. 1) & Codeforces Round #202 (Div. 2) 7
361 Binary Table Categories Codeforces CROC 2016 - Final Round [Private, For Onsite Finalists Only] 7
362 Help Victoria the Wise Categories Codeforces Codeforces Beta Round #78 (Div. 1 Only) & Codeforces Beta Round #78 (Div. 2 Only) 7
363 Hongcow Buys a Deck of Cards Categories Codeforces Codeforces Round #385 (Div. 1) & Codeforces Round #385 (Div. 2) 7
364 Table with Letters - 2 Categories Codeforces Codeforces Round #154 (Div. 2) 7
365 Three-dimensional Turtle Super Computer Categories Codeforces VK Cup 2016 - Qualification Round 2 7
366 Divisor Tree Categories Codeforces Codeforces Round #196 (Div. 2) & Codeforces Round #196 (Div. 1) 7
367 Football Championship Categories Codeforces Codeforces Round #126 (Div. 2) 7
368 Double Happiness Categories Codeforces Codeforces Beta Round #86 (Div. 1 Only) & Codeforces Beta Round #86 (Div. 2 Only) 7
369 Seller Bob Categories Codeforces Codeforces Beta Round #18 (Div. 2 Only) 7
370 Pairs of Numbers Categories Codeforces Codeforces Testing Round #3 7
371 Fuzzy Search Categories Codeforces Codeforces Round #296 (Div. 1) 7
372 Peterson Polyglot Categories Codeforces Codeforces Round #402 (Div. 1) & Codeforces Round #402 (Div. 2) 7
373 ucyhf Categories Codeforces April Fools Day Contest 7
374 Edo and Magnets Categories Codeforces Codeforces Round #330 (Div. 1) & Codeforces Round #330 (Div. 2) 7
375 Game Categories Codeforces Codeforces Beta Round #46 (Div. 2) 7
376 Anton and Permutation Categories Codeforces Codeforces Round #404 (Div. 2) 7
377 Beautiful IP Addresses Categories Codeforces Croc Champ 2013 - Round 1 7
378 Minimum Modular Categories Codeforces Codeforces Round #183 (Div. 1) & Codeforces Round #183 (Div. 2) 7
379 Little Victor and Set Categories Codeforces Codeforces Round #262 (Div. 2) 7
380 Group Photo 2 (online mirror version) Categories Codeforces VK Cup 2015 - Round 1 (unofficial online mirror, Div. 1 only) 7
381 Treasure Island Categories Codeforces Codeforces Beta Round #82 (Div. 2) 7
382 Wrong Floyd Categories Codeforces Codeforces Round #203 (Div. 2) 7
383 Journey Categories Codeforces Codeforces Beta Round #42 (Div. 2) 7
384 Dark Assembly Categories Codeforces Codeforces Beta Round #81 7
385 Special Grid Categories Codeforces Codeforces Round #249 (Div. 2) 7
386 THE N WITTY FRIENDS Categories SPOJ 7
387 Kamal-ol-molk's Painting Categories Codeforces Bayan 2015 Contest Warm Up 7
388 Log Stream Analysis Categories Codeforces CROC-MBTU 2012, Elimination Round (ACM-ICPC) 7
389 Brand New Easy Problem Categories Codeforces Codeforces Round #127 (Div. 2) 7
390 Rat Kwesh and Cheese Categories Codeforces Codeforces Round #341 (Div. 2) 7
391 Xor Categories Codeforces Codeforces Round #122 (Div. 1) & Codeforces Round #122 (Div. 2) 7
392 Bamboo Partition Categories Codeforces Codeforces Round #424 (Div. 1, rated, based on VK Cup Finals) & Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) 7
393 Programming Language Categories Codeforces Codeforces Round #126 (Div. 2) 7
394 Elections Categories Codeforces MemSQL Start[c]UP 2.0 - Round 2 7
395 Vladik and chat Categories Codeforces Codeforces Round #390 (Div. 2) 7
396 Curious Array Categories Codeforces Codeforces Round #239 (Div. 1) & Codeforces Round #239 (Div. 2) 7
397 Spiral Maximum Categories Codeforces Croc Champ 2012 - Round 1 7
398 Kay and Eternity Categories Codeforces Codeforces Round #359 (Div. 1) 8
399 Vanya and Balloons Categories Codeforces Codeforces Round #355 (Div. 2) 8
400 Ghd Categories Codeforces Codeforces Round #213 (Div. 1) 8
401 Dividing Kingdom II Categories Codeforces Codeforces Round #360 (Div. 1) 8
402 Mother of Dragons Categories Codeforces Codeforces Round #428 (Div. 2) 8
403 Gosha is hunting Categories Codeforces Codeforces Round #381 (Div. 1) 8
404 Collisions Categories Codeforces Codeforces Beta Round #34 (Div. 2) 8
405 Mad Joe Categories Codeforces CROC-MBTU 2012, Final Round (Online version, Div. 2) 8
406 Summer Earnings Categories Codeforces Codeforces Round #194 (Div. 1) 8
407 Safe cracking Categories Codeforces Codeforces Beta Round #41 8
408 Dima and Magic Guitar Categories Codeforces Codeforces Round #214 (Div. 2) 8
409 Biathlon Track Categories Codeforces Codeforces Round #242 (Div. 2) 8
410 Help Caretaker Categories Codeforces Codeforces Round #102 (Div. 1) & Codeforces Round #102 (Div. 2) 8
411 Polycarpus the Safecracker Categories Codeforces VK Cup 2012 Round 1 8
412 Broken Monitor Categories Codeforces Codeforces Round #217 (Div. 2) 8
413 Distinct Paths Categories Codeforces Croc Champ 2013 - Round 2 8
414 Safe Categories Codeforces Codeforces Beta Round #44 (Div. 2) 8
415 Timofey and remoduling Categories Codeforces Codeforces Round #395 (Div. 1) & Codeforces Round #395 (Div. 2) 8
416 Suggested Friends Categories Codeforces CROC-MBTU 2012, Elimination Round (ACM-ICPC) 8
417 Crosses Categories Codeforces Codeforces Round #132 (Div. 2) 8
418 Magic Matrix Categories Codeforces Educational Codeforces Round 9 8
419 Sereja and Tree Categories Codeforces Codeforces Round #223 (Div. 1) & Codeforces Round #223 (Div. 2) 8
420 Beautiful Set Categories Codeforces Codeforces Round #213 (Div. 1) & Codeforces Round #213 (Div. 2) 8
421 Mushroom Strife Categories Codeforces Codeforces Beta Round #56 8
422 The Diameter of Tree Categories Live Archive 2014 Asia - Xian 8
423 Zoo Categories Codeforces Croc Champ 2012 - Final 8
424 Cinema Categories Codeforces Codeforces Round #126 (Div. 2) 8
425 Cube Problem Categories Codeforces Croc Champ 2013 - Round 2 8
426 Chip Play Categories Codeforces Codeforces Beta Round #74 (Div. 1 Only) & Codeforces Beta Round #74 (Div. 2 Only) 8
427 Dima and Kicks Categories Codeforces Codeforces Round #208 (Div. 2) 9
428 Lucky Tickets Categories Codeforces Codeforces Round #194 (Div. 1) & Codeforces Round #194 (Div. 2) 9
429 Task processing Categories Codeforces 2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) 9
430 Fibonacci Number Categories Codeforces Codeforces Round #122 (Div. 1) 9
431 Sign Posts Categories Codeforces Codeforces Round #315 (Div. 1) 9
432 Minimum Diameter Categories Codeforces VK Cup 2012 Round 3 9
433 Savior Categories Codeforces Codeforces Beta Round #56 9
434 Race Categories Codeforces Bayan 2012-2013 Elimination Round (ACM ICPC Rules, English statements) 9
435 The Tournament Categories Codeforces Rockethon 2014 9
436 Shaass and Painter Robot Categories Codeforces Codeforces Round #178 (Div. 2) 9
437 Azembler Categories Codeforces Codeforces Beta Round #76 (Div. 1 Only) & Codeforces Beta Round #76 (Div. 2 Only) 9
438 Synchrophasotron Categories Codeforces Codeforces Beta Round #62 9
439 Bitonix' Patrol Categories Codeforces Codeforces Round #134 (Div. 1) 9
440 Writing a Song Categories Codeforces Codeforces Beta Round #50 9
441 PE Lesson Categories Codeforces ABBYY Cup 3.0 9
442 Frames Categories Codeforces Codeforces Round #108 (Div. 2) 9
443 Prime Segment Categories Codeforces Unknown Language Round #1 9
444 BLOCK_D SOLVER Categories SPOJ 9
445 Brand New Problem Categories Codeforces Codeforces Round #127 (Div. 1) 9
446 Supercollider Categories Codeforces Rockethon 2014 9
447 Plane of Tanks: Duel Categories Codeforces Codeforces Round #115 9
448 Solitaire Categories Codeforces Codeforces Beta Round #65 (Div. 2) 9
449 Dividing Kingdom Categories Codeforces Codeforces Round #158 (Div. 2) 9
450 Pasha and Pipe Categories Codeforces Codeforces Round #293 (Div. 2) 9
451 Gripping Story Categories Codeforces Codeforces Round #125 (Div. 1) 9
452 Rats Categories Codeforces Codeforces Round #155 (Div. 2) 9
453 Ever-Hungry Krakozyabra Categories Codeforces Codeforces Round #426 (Div. 1) & Codeforces Round #426 (Div. 2) 9
454 Pumping Stations Categories Codeforces Codeforces Round #200 (Div. 1) 9
455 Domino Categories Codeforces Yandex.Algorithm 2011 Finals 9
456 Fetch the Treasure Categories Codeforces Codeforces Round #185 (Div. 1) & Codeforces Round #185 (Div. 2) 9
457 Power Defence Categories Codeforces Codeforces Round #115 9
458 Physical Education and Buns Categories Codeforces Codeforces Round #231 (Div. 2) 9
459 Rectangles and Square Categories Codeforces MemSQL start[c]up Round 2 - online version 9
460 Maxim and Calculator Categories Codeforces Codeforces Round #160 (Div. 1) 9
461 Bear and Chase Categories Codeforces Codeforces Round #356 (Div. 1) 9
462 Harry Potter and the Sorting Hat Categories Codeforces Codeforces Beta Round #60 9
463 Walls Categories Live Archive 2012 North America - Southeast USA 9
464 The Last Hole! Categories Codeforces Codeforces Round #168 (Div. 1) & Codeforces Round #168 (Div. 2) 9
465 Roland and Rose Categories Codeforces Codeforces Round #262 (Div. 2) 9
466 Cycle Categories Codeforces Codeforces Beta Round #97 (Div. 1) 9
467 Dasha and cyclic table Categories Codeforces Codeforces Round #390 (Div. 2) 9
468 Large Refrigerator Categories Codeforces VK Cup 2012 Round 2 9
469 Race Categories Codeforces Codeforces Beta Round #42 (Div. 2) 9
470 Rhombus Categories Codeforces Codeforces Round #161 (Div. 2) 9
471 Item World Categories Codeforces Codeforces Beta Round #81 9
472 Travelling Through the Snow Queen's Kingdom Categories Codeforces Codeforces Round #359 (Div. 1) 9
473 Word Folding Categories Codeforces Rockethon 2014 9
474 Hellish Constraints Categories Codeforces Codeforces Beta Round #99 (Div. 1) 10
475 The Overdosing Ubiquity Categories Codeforces Codeforces Round #439 (Div. 2) 10
476 Toys Categories Codeforces School Team Contest #2 (Winter Computer School 2010/11) 10
477 Lift and Throw Categories Codeforces Codeforces Beta Round #81 10
478 Entertaining Geodetics Categories Codeforces Codeforces Beta Round #81 10
479 Wavy numbers Categories Codeforces Codeforces Round #273 (Div. 2) 10
480 Lucky Interval Categories Codeforces Codeforces Beta Round #84 (Div. 1 Only) 10
481 To Hack or not to Hack Categories Codeforces CROC 2016 - Final Round [Private, For Onsite Finalists Only] 10
482 Chain Reaction Categories Codeforces Codeforces Round #349 (Div. 1) & Codeforces Round #349 (Div. 2) 10
483 Tennis Rackets Categories Codeforces Croc Champ 2013 - Finals (online version, Div. 1) 10
484 Long sequence Categories Codeforces Yandex.Algorithm 2011 Round 2 10
485 Party Categories Codeforces Bubble Cup 8 - Finals [Online Mirror] 10
486 Two Circles Categories Codeforces Codeforces Round #211 (Div. 2) 10
487 Ali goes shopping Categories Codeforces Unknown Language Round #2 10
488 Pills Categories Codeforces Codeforces Beta Round #93 (Div. 1 Only) 10
489 Gears Categories Codeforces Codeforces Round #283 (Div. 1) 10
490 Mrs. Hudson's Pancakes Categories Codeforces Codeforces Round #110 (Div. 1) 10
491 Robot in Basement Categories Codeforces Yandex.Algorithm 2011 Finals 10
492 Plane of Tanks Categories Codeforces Codeforces Beta Round #66 10
493 Banners Categories Codeforces Zepto Code Rush 2014 10