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sortings problems
Problem Name Online Judge Year Contest Difficulty Level
1 Arrays Categories Codeforces Codeforces Round #317 [AimFund Thanks-Round] (Div. 2) 1
2 Soldier and Badges Categories Codeforces Codeforces Round #304 (Div. 2) 1
3 USB Flash Drives Categories Codeforces Educational Codeforces Round 3 1
4 Choosing Teams Categories Codeforces Codeforces Round #246 (Div. 2) 1
5 Mahmoud and a Triangle Categories Codeforces Codeforces Round #396 (Div. 2) 1
6 Lucky Division Categories Codeforces Codeforces Beta Round #91 (Div. 2 Only) 1
7 The Great Ball Categories SPOJ 1
8 Amr and Music Categories Codeforces Codeforces Round #287 (Div. 2) 1
9 Division of Nlogonia Categories UVA 1
10 BerSU Ball Categories Codeforces Codeforces Round #277.5 (Div. 2) 1
11 Sort the Array Categories Codeforces Codeforces Round #258 (Div. 2) 1
12 Business trip Categories Codeforces Codeforces Round #106 (Div. 2) 1
13 Football Categories Codeforces Codeforces Beta Round #42 (Div. 2) 1
14 Lala Land and Apple Trees Categories Codeforces Codeforces Round #312 (Div. 2) 1
15 Football (aka Soccer) Categories UVA 1
16 An abandoned sentiment from past Categories Codeforces Codeforces Round #418 (Div. 2) 1
17 Towers Categories Codeforces Codeforces Beta Round #37 1
18 Currency System in Geraldion Categories Codeforces Codeforces Round #313 (Div. 2) 1
19 GukiZ and Contest Categories Codeforces Codeforces Round #307 (Div. 2) 1
20 RoyalTreasurer Categories TopCoder SRM 433 - Div2 easy] (13695) 1
21 Beautiful Paintings Categories Codeforces Codeforces Round #345 (Div. 2) 1
22 Laptops Categories Codeforces Codeforces Round #260 (Div. 2) 1
23 Vito's Family Categories UVA 1
24 Team Olympiad Categories Codeforces Codeforces Round #279 (Div. 2) 1
25 Passwords Categories Codeforces Codeforces Round #374 (Div. 2) 1
26 Kuriyama Mirai's Stones Categories Codeforces Codeforces Round #248 (Div. 2) 1
27 DNA Sorting Categories UVA 1
28 Little Girl and Maximum Sum Categories Codeforces Codeforces Round #169 (Div. 2) 1
29 Appleman and Toastman Categories Codeforces Codeforces Round #263 (Div. 1) & Codeforces Round #263 (Div. 2) 1
30 Gravity Flip Categories Codeforces Codeforces Round #238 (Div. 2) 1
31 Helpful Maths Categories Codeforces Codeforces Round #197 (Div. 2) 1
32 Defense of a Kingdom Categories SPOJ 1
33 Drazil and Factorial Categories Codeforces Codeforces Round #292 (Div. 2) & Codeforces Round #292 (Div. 1) 1
34 Cryptography Categories TopCoder SRM 480 - Div2 easy] (14159) 1
35 Exams Categories Codeforces Codeforces Round #274 (Div. 2) & Codeforces Round #274 (Div. 1) 1
36 Ananagrams Categories UVA 1
37 Vanya and Lanterns Categories Codeforces Codeforces Round #280 (Div. 2) 1
38 Pashmak and Flowers Categories Codeforces Codeforces Round #261 (Div. 2) 1
39 Sale Categories Codeforces Codeforces Beta Round #34 (Div. 2) 1
40 Registration System Categories Codeforces Codeforces Beta Round #4 (Div. 2 Only) 1
41 Digit Sorting Categories TJU 1
42 Building Permutation Categories Codeforces Codeforces Round #175 (Div. 2) 1
43 Julka Categories SPOJ 1
44 Amusing Joke Categories Codeforces Codeforces Round #101 (Div. 2) 1
45 LittleElephantAndBooks Categories TopCoder SRM 592 - Div2 easy] (15704) 1
46 Devu, the Dumb Guy Categories Codeforces Codeforces Round #251 (Div. 2) 1
47 Queue Categories Codeforces Codeforces Round #303 (Div. 2) 1
48 Queries about less or equal elements Categories Codeforces Educational Codeforces Round 2 1
49 Contest Scoreboard Categories UVA 1
50 Alyona and Mex Categories Codeforces Codeforces Round #358 (Div. 2) 1
51 Chat room Categories Codeforces Codeforces Beta Round #54 (Div. 2) 1
52 Kefa and Company Categories Codeforces Codeforces Round #321 (Div. 2) 1
53 Anton and Classes Categories Codeforces Codeforces Round #404 (Div. 2) 1
54 Twins Categories Codeforces Codeforces Round #111 (Div. 2) 1
55 Translation Categories Codeforces Codeforces Beta Round #40 (Div. 2) 1
56 Dragons Categories Codeforces Codeforces Round #142 (Div. 2) 1
57 Summer sell-off Categories Codeforces Codeforces Round #415 (Div. 2) 2
58 Mafia Categories Codeforces Codeforces Round #202 (Div. 1) & Codeforces Round #202 (Div. 2) 2
59 SwapSort Categories Codeforces Codeforces Round #277.5 (Div. 2) 2
60 Pasha and Tea Categories Codeforces Codeforces Round #311 (Div. 2) 2
61 Petya and Staircases Categories Codeforces Codeforces Round #212 (Div. 2) 2
62 Bubbles and Buckets Categories UVA 2
63 Trace Categories Codeforces Codeforces Round #110 (Div. 2) 2
64 Bear and Three Balls Categories Codeforces IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) 2
65 Little Robber Girl's Zoo Categories Codeforces Codeforces Round #359 (Div. 2) 2
66 Sinking Ship Categories Codeforces Codeforces Beta Round #59 (Div. 2) 2
67 Developing Skills Categories Codeforces Codeforces Round #322 (Div. 2) 2
68 Unlucky Ticket Categories Codeforces Codeforces Round #111 (Div. 2) 2
69 Polo the Penguin and Matrix Categories Codeforces Codeforces Round #177 (Div. 2) 2
70 Game of Credit Cards Categories Codeforces Codeforces Round #401 (Div. 2) 2
71 Next Test Categories Codeforces Codeforces Beta Round #27 (Codeforces format, Div. 2) 2
72 Little Elephant and Problem Categories Codeforces Codeforces Round #136 (Div. 1) & Codeforces Round #136 (Div. 2) 2
73 Qualifying Contest Categories Codeforces Codeforces Round #346 (Div. 2) 2
74 The Child and Toy Categories Codeforces Codeforces Round #250 (Div. 2) & Codeforces Round #250 (Div. 1) 2
75 Ljutnja Categories SPOJ 2
76 Fox And Names Categories Codeforces Codeforces Round #290 (Div. 2) & Codeforces Round #290 (Div. 1) 2
77 Towers Categories Codeforces Codeforces Round #274 (Div. 2) 2
78 Handball Categories UVA 2
79 Rank List Categories Codeforces Codeforces Round #113 (Div. 2) 2
80 Ascending Fibonacci Numbers Categories SPOJ 2
81 Chat Order Categories Codeforces VK Cup 2016 - Qualification Round 1 2
82 Restoring Password Categories Codeforces Codeforces Beta Round #76 (Div. 2 Only) 2
83 New Year Ratings Change Categories Codeforces Good Bye 2013 2
84 Squares Categories Codeforces Codeforces Round #161 (Div. 2) 2
85 Jeff and Periods Categories Codeforces Codeforces Round #204 (Div. 2) 2
86 Making a String Categories Codeforces AIM Tech Round (Div. 2) 2
87 Urbanization Categories Codeforces Codeforces Round #382 (Div. 2) 2
88 Counting Kangaroos is Fun Categories Codeforces Codeforces Round #219 (Div. 1) & Codeforces Round #219 (Div. 2) 2
89 New Year Permutation Categories Codeforces Good Bye 2014 2
90 MUH and Important Things Categories Codeforces Codeforces Round #269 (Div. 2) 2
91 Counting heaps Categories Live Archive 2008 Europe - Central 2
92 Vladik and Complicated Book Categories Codeforces Codeforces Round #416 (Div. 2) 2
93 Difference Row Categories Codeforces Codeforces Round #201 (Div. 2) 2
94 Big Segment Categories Codeforces Codeforces Round #149 (Div. 2) 2
95 Buggy Sorting Categories Codeforces Codeforces Round #151 (Div. 2) 2
96 Combination Categories Codeforces Codeforces Round #109 (Div. 2) 2
97 Vanya and Exams Categories Codeforces Codeforces Round #280 (Div. 2) 2
98 Leha and Function Categories Codeforces Codeforces Round #429 (Div. 1) & Codeforces Round #429 (Div. 2) 2
99 Fox and Box Accumulation Categories Codeforces Codeforces Round #228 (Div. 1) & Codeforces Round #228 (Div. 2) 2
100 Equivalent Strings Categories Codeforces Codeforces Round #313 (Div. 1) & Codeforces Round #313 (Div. 2) 2
101 k-Multiple Free Set Categories Codeforces Codeforces Round #168 (Div. 1) & Codeforces Round #168 (Div. 2) 2
102 Sereja and Stairs Categories Codeforces Codeforces Round #223 (Div. 2) 3
103 Ilya and Matrix Categories Codeforces Codeforces Round #186 (Div. 2) 3
104 Ilya and Sticks Categories Codeforces Codeforces Round #297 (Div. 2) 3
105 2D-SORT Categories SPOJ 3
106 The Child and Set Categories Codeforces Codeforces Round #250 (Div. 2) 3
107 Correct Solution? Categories Codeforces Codeforces Beta Round #12 (Div 2 Only) 3
108 To Add or Not to Add Categories Codeforces Codeforces Round #143 (Div. 2) 3
109 Arithmetic Progression Categories Codeforces Codeforces Round #224 (Div. 2) 3
110 Bombs Categories Codeforces Codeforces Round #203 (Div. 2) 3
111 Order Book Categories Codeforces Codeforces Round #317 [AimFund Thanks-Round] (Div. 2) 3
112 Sockets Categories Codeforces Codeforces Round #159 (Div. 2) 3
113 Vasya and Basketball Categories Codeforces Codeforces Round #281 (Div. 2) 3
114 Long Jumps Categories Codeforces Codeforces Round #274 (Div. 2) & Codeforces Round #274 (Div. 1) 3
115 Cellular Network Categories Codeforces Educational Codeforces Round 15 3
116 Reading Categories Codeforces Codeforces Round #145 (Div. 2, ACM-ICPC Rules) 3
117 Spyke Talks Categories Codeforces Croc Champ 2013 - Qualification Round 3
118 Burglar and Matches Categories Codeforces Codeforces Beta Round #16 (Div. 2 Only) 3
119 Megacity Categories Codeforces Codeforces Round #242 (Div. 2) 3
120 Maxim and Discounts Categories Codeforces Codeforces Round #160 (Div. 1) & Codeforces Round #160 (Div. 2) 3
121 Anton and Lines Categories Codeforces Codeforces Round #329 (Div. 2) 3
122 Day at the Beach Categories Codeforces Codeforces Round #332 (Div. 2) 3
123 Photographer Categories Codeforces Codeforces Round #128 (Div. 2) 3
124 z-sort Categories Codeforces Educational Codeforces Round 10 3
125 Mashmokh and Tokens Categories Codeforces Codeforces Round #240 (Div. 2) 3
126 Powerful array Categories Codeforces Yandex.Algorithm 2011 Round 2 3
127 Do you want a date? Categories Codeforces Codeforces Round #415 (Div. 1) & Codeforces Round #415 (Div. 2) 3
128 Finding Team Member Categories Codeforces Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] 3
129 Replacement Categories Codeforces Codeforces Beta Round #97 (Div. 1) & Codeforces Beta Round #97 (Div. 2) 3
130 Longest Regular Bracket Sequence Categories Codeforces Codeforces Beta Round #5 3
131 Maximum Value Categories Codeforces Codeforces Round #276 (Div. 1) & Codeforces Round #276 (Div. 2) 3
132 HELP NERUBAN Categories SPOJ 3
133 Pashmak and Parmida's problem Categories Codeforces Codeforces Round #261 (Div. 2) 3
134 Median Categories Codeforces Codeforces Round #113 (Div. 2) 3
135 Mysterious Present Categories Codeforces Codeforces Beta Round #4 (Div. 2 Only) 3
136 Cards with Numbers Categories Codeforces Codeforces Round #155 (Div. 2) 3
137 Misha and Forest Categories Codeforces Codeforces Round #285 (Div. 2) & Codeforces Round #285 (Div. 1) 3
138 History Categories Codeforces Codeforces Beta Round #98 (Div. 2) 3
139 Troops of Sand Monsters Categories SPOJ 4
140 Devu and his Brother Categories Codeforces Codeforces Round #251 (Div. 2) 4
141 Vanya and Computer Game Categories Codeforces Codeforces Round #280 (Div. 2) 4
142 Pashmak and Graph Categories Codeforces Codeforces Round #261 (Div. 2) 4
143 Queue Categories Codeforces Codeforces Beta Round #75 (Div. 1 Only) & Codeforces Beta Round #75 (Div. 2 Only) 4
144 The Smallest String Concatenation Categories Codeforces Educational Codeforces Round 9 4
145 Choosing Laptop Categories Codeforces Codeforces Beta Round #82 (Div. 2) 4
146 Preparing for Merge Sort Categories Codeforces 2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest, qualification stage (Online Mirror, ACM-ICPC Rules, Teams Preferred) 4
147 Clique Problem Categories Codeforces Codeforces Round #296 (Div. 2) & Codeforces Round #296 (Div. 1) 4
148 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
149 Restore Graph Categories Codeforces Codeforces Round #237 (Div. 2) 4
150 Semifinals Categories Codeforces Codeforces Round #222 (Div. 2) 4
151 Chores Categories Codeforces VK Cup 2012 Round 2 (Unofficial Div. 2 Edition) 4
152 Fruits Categories Codeforces Codeforces Beta Round #12 (Div 2 Only) 4
153 Eight Point Sets Categories Codeforces Codeforces Round #194 (Div. 2) 4
154 Find Pair Categories Codeforces Codeforces Round #111 (Div. 2) 4
155 Division into Teams Categories Codeforces Codeforces Round #106 (Div. 2) 4
156 Matchmaker Categories Codeforces VK Cup 2012 Qualification Round 2 4
157 Lorry Categories Codeforces Codeforces Beta Round #3 4
158 The Child and Zoo Categories Codeforces Codeforces Round #250 (Div. 2) & Codeforces Round #250 (Div. 1) 4
159 One-Dimensional Battle Ships Categories Codeforces Codeforces Round #Pi (Div. 2) 4
160 XK Segments Categories Codeforces Codeforces Round #448 (Div. 2) 4
161 Ksusha and Array Categories Codeforces Croc Champ 2013 - Round 2 (Div. 2 Edition) 4
162 Vanya and Triangles Categories Codeforces Codeforces Round #308 (Div. 2) 4
163 Money Transfers Categories Codeforces Codeforces Round #353 (Div. 2) 4
164 Sereja and Swaps Categories Codeforces Codeforces Round #243 (Div. 1) & Codeforces Round #243 (Div. 2) 4
165 Multitasking Categories Codeforces Codeforces Round #225 (Div. 2) 4
166 Growing Mushrooms Categories Codeforces Codeforces Round #118 (Div. 2) 4
167 Network Configuration Categories Codeforces Coder-Strike 2014 - Round 1 4
168 Case of Fugitive Categories Codeforces Codeforces Round #310 (Div. 1) & Codeforces Round #310 (Div. 2) 4
169 Report Categories Codeforces Codeforces Round #344 (Div. 2) 4
170 Page Numbers Categories Codeforces Codeforces Beta Round #34 (Div. 2) 4
171 Maximum Submatrix 2 Categories Codeforces Codeforces Round #221 (Div. 1) & Codeforces Round #221 (Div. 2) 4
172 Queue Categories Codeforces Codeforces Round #101 (Div. 2) 5
173 Discounts Categories Codeforces VK Cup 2012 Round 1 5
174 Jury Meeting Categories Codeforces Codeforces Round #433 (Div. 1, based on Olympiad of Metropolises) & Codeforces Round #433 (Div. 2, based on Olympiad of Metropolises) 5
175 Dima and Two Sequences Categories Codeforces Codeforces Round #167 (Div. 2) & Codeforces Round #167 (Div. 1) 5
176 Fox and Card Game Categories Codeforces Codeforces Round #228 (Div. 1) & Codeforces Round #228 (Div. 2) 5
177 Preparing for the Contest Categories Codeforces Codeforces Round #222 (Div. 1) & Codeforces Round #222 (Div. 2) 5
178 Cartons of milk Categories Codeforces Codeforces Round #398 (Div. 2) 5
179 Datatypes Categories Codeforces Codeforces Beta Round #83 (Div. 2 Only) 5
180 Array Game Categories Live Archive 2009 Asia - Tehran 5
181 Restaurant Categories Codeforces Testing Round #12 5
182 Happy Line Categories Codeforces Looksery Cup 2015 5
183 The Union of k-Segments Categories Codeforces Educational Codeforces Round 4 5
184 Prime Swaps Categories Codeforces Codeforces Round #246 (Div. 2) 5
185 pSort Categories Codeforces Codeforces Beta Round #28 (Codeforces format) 5
186 DIFFICULT INTERVIEW Categories SPOJ 5
187 New Year Contest Categories Codeforces Codeforces Round #100 5
188 Help Chef Gerasim Categories Codeforces Codeforces Beta Round #78 (Div. 2 Only) 5
189 Spy Syndrome 2 Categories Codeforces Manthan, Codefest 16 5
190 Layer Cake Categories Codeforces 2015-2016 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) 5
191 Colorful Field Categories Codeforces Codeforces Beta Round #71 5
192 Hanoi Factory Categories Codeforces Codeforces Round #401 (Div. 2) 5
193 Nearest vectors Categories Codeforces Educational Codeforces Round 1 5
194 Lawnmower Categories Codeforces Codeforces Beta Round #87 (Div. 1 Only) & Codeforces Beta Round #87 (Div. 2 Only) 5
195 Cards Sorting Categories Codeforces Codeforces Round #424 (Div. 1, rated, based on VK Cup Finals) & Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals) 5
196 Points on Plane Categories Codeforces Codeforces Round #319 (Div. 1) & Codeforces Round #319 (Div. 2) 5
197 Young Table Categories Codeforces Codeforces Round #147 (Div. 2) 5
198 Fancy Number Categories Codeforces Codeforces Beta Round #89 (Div. 2) 5
199 Ryouko's Memory Note Categories Codeforces Codeforces Round #248 (Div. 2) & Codeforces Round #248 (Div. 1) 5
200 A Simple Task Categories Codeforces Codeforces Round #312 (Div. 2) 5
201 Olympiad Categories Codeforces Codeforces Round #137 (Div. 2) 5
202 Wilbur and Points Categories Codeforces Codeforces Round #331 (Div. 2) 5
203 Minimization Categories Codeforces Codeforces Round #317 [AimFund Thanks-Round] (Div. 1) & Codeforces Round #317 [AimFund Thanks-Round] (Div. 2) 5
204 Sequence Categories Codeforces Codeforces Beta Round #13 5
205 The Art of Dealing with ATM Categories Codeforces VK Cup 2015 - Round 1 5
206 Two Heaps Categories Codeforces Codeforces Round #205 (Div. 2) 5
207 Points and Segments (easy) Categories Codeforces Codeforces Round #245 (Div. 2) 5
208 Nested Segments Categories Codeforces Educational Codeforces Round 10 5
209 Fedor and coupons Categories Codeforces Codeforces Round #390 (Div. 2) 5
210 Cottage Village Categories Codeforces Codeforces Beta Round #15 5
211 Pillars Categories Codeforces Codeforces Round #271 (Div. 2) 5
212 Ada and Cucumber Categories SPOJ 6
213 Cunning Gena Categories Codeforces RCC 2014 Warmup (Div. 2) & RCC 2014 Warmup (Div. 1) 6
214 Doctor Categories Codeforces Codeforces Beta Round #72 (Div. 1 Only) & Codeforces Beta Round #72 (Div. 2 Only) 6
215 Unsorting Array Categories Codeforces Codeforces Round #153 (Div. 2) 6
216 Hydra Categories Codeforces Codeforces Round #150 (Div. 1) & Codeforces Round #150 (Div. 2) 6
217 Sereja and the Arrangement of Numbers Categories Codeforces Codeforces Round #215 (Div. 1) & Codeforces Round #215 (Div. 2) 6
218 Phone Talks Categories Codeforces VK Cup 2012 Qualification Round 1 6
219 Infinite Inversions Categories Codeforces Codeforces Round #301 (Div. 2) 6
220 Physical Education Categories Codeforces Codeforces Beta Round #49 (Div. 2) 6
221 Mittens Categories Codeforces Codeforces Round #217 (Div. 2) 6
222 Oh Sweet Beaverette Categories Codeforces ABBYY Cup 3.0 - Finals (online version) 6
223 Distributing Parts Categories Codeforces Codeforces Round #283 (Div. 2) 6
224 Reducing Fractions Categories Codeforces Codeforces Round #137 (Div. 2) 6
225 Yet Another Task with Queens Categories Codeforces Codeforces Beta Round #95 (Div. 2) 6
226 Polycarp and Hay Categories Codeforces Codeforces Round #346 (Div. 2) 6
227 Trading Business Categories Codeforces Croc Champ 2012 - Round 2 6
228 Average Score Categories Codeforces Yandex.Algorithm Open 2011 Qualification 1 6
229 Let's Go Rolling! Categories Codeforces School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) 6
230 Stripe 2 Categories Codeforces Codeforces Alpha Round #21 (Codeforces format) 6
231 Sonya and Problem Wihtout a Legend Categories Codeforces Codeforces Round #371 (Div. 1) & Codeforces Round #371 (Div. 2) 6
232 Double Profiles Categories Codeforces Codeforces Round #109 (Div. 1) & Codeforces Round #109 (Div. 2) 6
233 Polygons Categories Codeforces Codeforces Round #113 (Div. 2) 6
234 Mike and distribution Categories Codeforces Codeforces Round #410 (Div. 2) 6
235 Time to Raid Cowavans Categories Codeforces Codeforces Beta Round #80 (Div. 1 Only) & Codeforces Beta Round #80 (Div. 2 Only) 6
236 Segments Categories Codeforces Codeforces Beta Round #22 (Div. 2 Only) 6
237 Rooter's Song Categories Codeforces Codeforces Round #431 (Div. 1) & Codeforces Round #431 (Div. 2) 6
238 Bus Categories Codeforces Croc Champ 2012 - Qualification Round 6
239 A Heap of Heaps Categories Codeforces Codeforces Round #300 6
240 Characteristics of Rectangles Categories Codeforces Codeforces Round #194 (Div. 1) 6
241 Counter Attack Categories Codeforces Codeforces Round #120 (Div. 2) 7
242 Spider's Web Categories Codeforces Codeforces Round #133 (Div. 2) 7
243 Minimum Sum Categories Codeforces School Regional Team Contest, Saratov, 2011 7
244 Gift Categories Codeforces All-Ukrainian School Olympiad in Informatics 7
245 Mushroom Gnomes - 2 Categories Codeforces Codeforces Beta Round #99 (Div. 1) & Codeforces Beta Round #99 (Div. 2) 7
246 Analyzing Polyline Categories Codeforces Codeforces Round #123 (Div. 2) 7
247 Hostname Aliases Categories Codeforces CROC 2016 - Qualification 7
248 Bug in Code Categories Codeforces Coder-Strike 2014 - Finals (online edition, Div. 2) & Coder-Strike 2014 - Finals (online edition, Div. 1) & Coder-Strike 2014 - Finals (online edition, Div. 2) & Coder-Strike 2014 - Finals (online edition, Div. 1) 7
249 Blood Cousins Return Categories Codeforces Codeforces Round #151 (Div. 2) 7
250 Lovely Matrix Categories Codeforces Codeforces Round #168 (Div. 1) 7
251 Geometry Horse Categories Codeforces Codeforces Round #115 7
252 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
253 Paint Tree Categories Codeforces Codeforces Round #124 (Div. 1) & Codeforces Round #124 (Div. 2) 7
254 Knights Categories Codeforces Codeforces Beta Round #33 (Codeforces format) 7
255 Guess Your Way Out! II Categories Codeforces Codeforces Round #312 (Div. 2) 7
256 Ball Categories Codeforces Codeforces Beta Round #12 (Div 2 Only) 7
257 Edges in MST Categories Codeforces Codeforces Round #111 (Div. 2) 7
258 Domino Principle Categories Codeforces Codeforces Beta Round #52 (Div. 2) 7
259 Group Photo 2 (online mirror version) Categories Codeforces VK Cup 2015 - Round 1 (unofficial online mirror, Div. 1 only) 7
260 Students' Revenge Categories Codeforces Codeforces Round #193 (Div. 2) 7
261 Zebra Tower Categories Codeforces VK Cup 2012 Qualification Round 2 7
262 Bear and Contribution Categories Codeforces VK Cup 2016 - Round 1 7
263 General Mobilization Categories Codeforces Yandex.Algorithm 2011 Qualification 2 7
264 Before Exam Categories Codeforces Codeforces Beta Round #90 7
265 Playlist Categories Codeforces Codeforces Round #164 (Div. 2) 7
266 Event Dates Categories Codeforces School Team Contest #3 (Winter Computer School 2010/11) 7
267 Need For Brake Categories Codeforces Codeforces Beta Round #66 8
268 Wilbur and Trees Categories Codeforces Codeforces Round #331 (Div. 2) 8
269 Oranges and Apples Categories Codeforces Codeforces Beta Round #23 8
270 Parade Categories Codeforces Codeforces Beta Round #35 (Div. 2) 8
271 Summer Earnings Categories Codeforces Codeforces Round #194 (Div. 1) 8
272 Lucky Sorting Categories Codeforces Codeforces Beta Round #84 (Div. 1 Only) 8
273 Dividing Kingdom II Categories Codeforces Codeforces Round #360 (Div. 1) 8
274 Petya and Tree Categories Codeforces Yandex.Algorithm 2011 Round 1 8
275 Conveyor Categories Codeforces VK Cup 2012 Round 2 8
276 Sereja and Straight Lines Categories Codeforces Codeforces Round #187 (Div. 1) 8
277 Guard Towers Categories Codeforces Yandex.Algorithm 2011 Round 1 8
278 Kingdom and its Cities Categories Codeforces Codeforces Round #339 (Div. 1) 8
279 Volcanoes Categories Codeforces Codeforces Round #225 (Div. 1) & Codeforces Round #225 (Div. 2) 8
280 Castle Categories Codeforces Codeforces Beta Round #79 (Div. 1 Only) 8
281 Place Your Ad Here Categories Codeforces VK Cup 2015 - Round 3 (unofficial online mirror, Div. 1 only) 8
282 Printer Categories Codeforces Codeforces Round #154 (Div. 2) 8
283 Lucky Tickets Categories Codeforces Codeforces Beta Round #64 8
284 Gosha is hunting Categories Codeforces Codeforces Round #381 (Div. 1) 8
285 Beautiful Road Categories Codeforces Codeforces Beta Round #73 (Div. 1 Only) 8
286 Item World Categories Codeforces Codeforces Beta Round #81 9
287 Bear and Paradox Categories Codeforces VK Cup 2016 - Round 1 9
288 Cannon Categories Codeforces Codeforces Beta Round #44 (Div. 2) 9
289 Camping Groups Categories Codeforces Croc Champ 2012 - Round 1 9
290 Gerald and Path Categories Codeforces Codeforces Round #313 (Div. 1) 9
291 Shoe Store Categories Codeforces Codeforces Round #113 (Div. 2) 9
292 Map Categories Codeforces Codeforces Beta Round #15 9
293 Roland and Rose Categories Codeforces Codeforces Round #262 (Div. 2) 9
294 Representative Sampling Categories Codeforces ABBYY Cup 2.0 - Hard 9
295 MultiSort Categories SPOJ 9
296 Mike and code of a permutation Categories Codeforces Codeforces Round #410 (Div. 2) 9
297 Donkey and Stars Categories Codeforces Codeforces Round #152 (Div. 1) 9
298 New Year Snowflake Categories Codeforces Codeforces Round #100 9
299 Gripping Story Categories Codeforces Codeforces Round #125 (Div. 1) 9
300 Moon Craters Categories Codeforces School Team Contest #1 (Winter Computer School 2010/11) 9
301 New Year Tree Decorations Categories Codeforces Good Bye 2013 9
302 Optimizer Categories Codeforces Testing Round #6 9
303 Buses and People Categories Codeforces Codeforces Round #111 (Div. 2) 9
304 Transportation Categories Codeforces Codeforces Round #128 (Div. 2) 9
305 Inquisition Categories Codeforces Codeforces Beta Round #58 9
306 Tourists Categories Codeforces Codeforces Round #176 (Div. 1) 9
307 Selling Numbers Categories Codeforces Codeforces Round #402 (Div. 1) 10
308 Berserk Robot Categories Codeforces Codeforces Round #300 10
309 Wavy numbers Categories Codeforces Codeforces Round #273 (Div. 2) 10
310 Snow sellers Categories Codeforces School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round #45 (ACM-ICPC Rules) 10
311 Array sorting Categories Codeforces Unknown Language Round #4 10
312 Table Bowling Categories Codeforces Unknown Language Round #1 10
313 Looking for Owls Categories Codeforces Codeforces Round #203 (Div. 2) 10
314 Triangles 3000 Categories Codeforces Codeforces Round #296 (Div. 1) 10
315 Sort the Table Categories Codeforces Unknown Language Round #1 10
316 Caramel Clouds Categories Codeforces Codeforces Round #426 (Div. 1) 10
317 Furukawa Nagisa's Tree Categories Codeforces Codeforces Round #248 (Div. 1) 10