Sorting

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