You must be logged in to add problems to this category

Best Problem Setters problems
Problem Name Online Judge Contest Difficulty Level
1 Raising Bacteria Categories Codeforces Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] 1
2 New Year and Counting Cards Categories Codeforces Good Bye 2017 1
3 Dreamoon and WiFi Categories Codeforces Codeforces Round #272 (Div. 2) 1
4 Roadside Trees (Simplified Edition) Categories Codeforces Codeforces Round #162 (Div. 2) 1
5 Hongcow Learns the Cyclic Shift Categories Codeforces Codeforces Round #385 (Div. 2) 1
6 Two Buttons Categories Codeforces Codeforces Round #295 (Div. 2) 1
7 Trip For Meal Categories Codeforces Codeforces Round #441 (Div. 2, by Moscow Team Olympiad) 1
8 Christmas Spruce Categories Codeforces Hello 2018 1
9 Bear and Finding Criminals Categories Codeforces Codeforces Round #356 (Div. 2) 1
10 Free Ice Cream Categories Codeforces Codeforces Round #359 (Div. 2) 1
11 Design Tutorial: Learn from Math Categories Codeforces Codeforces Round #270 1
12 Classroom Watch Categories Codeforces Codeforces Round #441 (Div. 1, by Moscow Team Olympiad) & Codeforces Round #441 (Div. 2, by Moscow Team Olympiad) 1
13 Dreamoon and Stairs Categories Codeforces Codeforces Round #272 (Div. 2) 1
14 Colorful Stones (Simplified Edition) Categories Codeforces Codeforces Round #162 (Div. 2) 1
15 Pangram Categories Codeforces Codeforces Round #295 (Div. 2) 1
16 New Year and Days Categories Codeforces Good Bye 2015 1
17 I_love_\%username\% Categories Codeforces Codeforces Round #109 (Div. 2) 1
18 Modular Exponentiation Categories Codeforces Hello 2018 1
19 Bear and Five Cards Categories Codeforces Codeforces Round #356 (Div. 2) 1
20 Fraction Categories Codeforces Codeforces Round #433 (Div. 2, based on Olympiad of Metropolises) 1
21 Andryusha and Socks Categories Codeforces ?????????? 2017 - ????? (?????? ??? ??????-??????????) 1
22 Drazil and Date Categories Codeforces Codeforces Round #292 (Div. 2) 1
23 New Year and North Pole Categories Codeforces Good Bye 2016 1
24 Olympiad Categories Codeforces Codeforces Round #467 (Div. 2) 1
25 Drazil and Factorial Categories Codeforces Codeforces Round #292 (Div. 2) & Codeforces Round #292 (Div. 1) 1
26 Launch of Collider Categories Codeforces Codeforces Round #363 (Div. 2) 1
27 Fox And Snake Categories Codeforces Codeforces Round #290 (Div. 2) 1
28 Fox and Number Game Categories Codeforces Codeforces Round #228 (Div. 2) 1
29 Bear and Big Brother Categories Codeforces Codeforces Round #405 (rated, Div. 2, based on VK Cup 2017 Round 1) 1
30 Petr and Book Categories Codeforces Codeforces Beta Round #99 (Div. 2) 1
31 Cells Not Under Attack Categories Codeforces Codeforces Round #364 (Div. 2) 1
32 Kyoya and Photobooks Categories Codeforces Codeforces Round #309 (Div. 2) 1
33 Appleman and Easy Task Categories Codeforces Codeforces Round #263 (Div. 2) 1
34 New Year and Hurry Categories Codeforces Good Bye 2016 1
35 Bear and Elections Categories Codeforces Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) 1
36 Appleman and Toastman Categories Codeforces Codeforces Round #263 (Div. 1) & Codeforces Round #263 (Div. 2) 1
37 Minimum Difficulty Categories Codeforces Codeforces Round #283 (Div. 2) 1
38 Bear and Poker Categories Codeforces Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 1) & Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) 1
39 Quasi Binary Categories Codeforces Codeforces Round #300 1
40 Vacations Categories Codeforces Codeforces Round #363 (Div. 1) & Codeforces Round #363 (Div. 2) 1
41 Bear and Friendship Condition Categories Codeforces VK Cup 2017 - Round 1 2
42 Design Tutorial: Learn from Life Categories Codeforces Codeforces Round #270 2
43 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
44 Andryusha and Colored Balloons Categories Codeforces ?????????? 2017 - ????? (?????? ??? ??????-??????????) 2
45 Guess the Permutation Categories Codeforces Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) 2
46 Ciel and Dancing Categories Codeforces Codeforces Round #190 (Div. 2) 2
47 New Year and Old Property Categories Codeforces Good Bye 2015 2
48 Combination Categories Codeforces Codeforces Round #109 (Div. 2) 2
49 Cutting Banner Categories Codeforces Codeforces Round #300 2
50 Jumping Ball Categories Codeforces Canada Cup 2016 2
51 Maxim Buys an Apartment Categories Codeforces Codeforces Round #433 (Div. 2, based on Olympiad of Metropolises) 2
52 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
53 New Year and Rating Categories Codeforces Good Bye 2016 2
54 Slime Combining Categories Codeforces Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) 2
55 Valued Keys Categories Codeforces Codeforces Round #409 (rated, Div. 2, based on VK Cup 2017 Round 2) 2
56 One Bomb Categories Codeforces Codeforces Round #363 (Div. 2) 2
57 Fox And Two Dots Categories Codeforces Codeforces Round #290 (Div. 2) 2
58 Gena's Code Categories Codeforces Codeforces Round #339 (Div. 2) 2
59 Fox and Cross Categories Codeforces Codeforces Round #228 (Div. 2) 2
60 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
61 Vile Grasshoppers Categories Codeforces Codeforces Round #467 (Div. 2) 2
62 Planning Categories Codeforces Codeforces Round #433 (Div. 1, based on Olympiad of Metropolises) & Codeforces Round #433 (Div. 2, based on Olympiad of Metropolises) 2
63 Table Tennis Game 2 Categories Codeforces Codeforces Round #397 by Kaspersky Lab and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 2
64 Bear and Prime 100 Categories Codeforces Codeforces Round #356 (Div. 1) & Codeforces Round #356 (Div. 2) 2
65 They Are Everywhere Categories Codeforces Codeforces Round #364 (Div. 2) 2
66 Ohana Cleans Up Categories Codeforces Codeforces Round #309 (Div. 2) 2
67 Collecting Beats is Fun Categories Codeforces Codeforces Round #219 (Div. 2) 2
68 Appleman and Card Game Categories Codeforces Codeforces Round #263 (Div. 2) 2
69 Bear and Three Musketeers Categories Codeforces Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) 2
70 Bear and Forgotten Tree 3 Categories Codeforces VK Cup 2016 - Round 1 2
71 Vicious Keyboard Categories Codeforces Codeforces Round #409 (rated, Div. 2, based on VK Cup 2017 Round 2) 2
72 New Year and Curling Categories Codeforces Good Bye 2017 2
73 Counting Kangaroos is Fun Categories Codeforces Codeforces Round #219 (Div. 1) & Codeforces Round #219 (Div. 2) 2
74 Link/Cut Tree Categories Codeforces Codeforces Round #339 (Div. 2) 2
75 Fox and Box Accumulation Categories Codeforces Codeforces Round #228 (Div. 1) & Codeforces Round #228 (Div. 2) 2
76 Bark to Unlock Categories Codeforces Codeforces Round #438 by Sberbank and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 2
77 Code obfuscation Categories Codeforces Codeforces Round #397 by Kaspersky Lab and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 2
78 Petr and a calendar Categories Codeforces Codeforces Round #393 (Div. 2) (8VC Venture Cup 2017 - Final Round Div. 2 Edition) 2
79 Tourist's Notes Categories Codeforces Codeforces Round #300 2
80 Is it rated? Categories Codeforces Codeforces Round #412 (rated, Div. 2, base on VK Cup 2017 Round 3) 2
81 Fox And Names Categories Codeforces Codeforces Round #290 (Div. 2) & Codeforces Round #290 (Div. 1) 2
82 Bear and Different Names Categories Codeforces VK Cup 2017 - Round 1 2
83 Design Tutorial: Make It Nondeterministic Categories Codeforces Codeforces Round #270 2
84 Bear and Displayed Friends Categories Codeforces VK Cup 2016 - Round 1 2
85 New Year and Buggy Bot Categories Codeforces Good Bye 2017 2
86 Kyoya and Colored Balls Categories Codeforces Codeforces Round #309 (Div. 1) & Codeforces Round #309 (Div. 2) 2
87 Escape from Stones Categories Codeforces Codeforces Round #162 (Div. 1) & Codeforces Round #162 (Div. 2) 2
88 Ciel and Flowers Categories Codeforces Codeforces Round #190 (Div. 2) 2
89 Removing Columns Categories Codeforces Codeforces Round #283 (Div. 2) & Codeforces Round #283 (Div. 1) 2
90 Neverending competitions Categories Codeforces Codeforces Round #397 by Kaspersky Lab and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 2
91 Divisiblity of Differences Categories Codeforces Codeforces Round #441 (Div. 2, by Moscow Team Olympiad) 2
92 New Year and Domino Categories Codeforces Good Bye 2015 2
93 Arpa and a research in Mexican wave Categories Codeforces Codeforces Round #432 (Div. 2, based on IndiaHacks Final Round 2017) 2
94 Bear and Three Balls Categories Codeforces IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) 2
95 Bear and Game Categories Codeforces Codeforces Round #351 (VK Cup 2016 Round 3, Div. 2 Edition) 2
96 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
97 Santa Claus and a Place in a Class Categories Codeforces Technocup 2017 - Elimination Round 3 2
98 Little Robber Girl's Zoo Categories Codeforces Codeforces Round #359 (Div. 2) 2
99 Sorting the Coins Categories Codeforces Codeforces Round #441 (Div. 1, by Moscow Team Olympiad) & Codeforces Round #441 (Div. 2, by Moscow Team Olympiad) 3
100 Seating On Bus Categories Codeforces Educational Codeforces Round 11 3
101 Success Rate Categories Codeforces VK Cup 2017 - Round 3 3
102 Food on the Plane Categories Codeforces Canada Cup 2016 3
103 Mr. Kitayuta, the Treasure Hunter Categories Codeforces Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) 3
104 Bear and String Distance Categories Codeforces Educational Codeforces Round 8 3
105 "Or" Game Categories Codeforces Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] & Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] 3
106 Hongcow Builds A Nation Categories Codeforces Codeforces Round #385 (Div. 1) & Codeforces Round #385 (Div. 2) 3
107 Co-prime Array Categories Codeforces Educational Codeforces Round 11 3
108 The Meeting Place Cannot Be Changed Categories Codeforces ?????????? 2017 - ????? (?????? ??? ??????-??????????) 3
109 Dreamoon and Sums Categories Codeforces Codeforces Round #272 (Div. 2) & Codeforces Round #272 (Div. 1) 3
110 z-sort Categories Codeforces Educational Codeforces Round 10 3
111 Petya and Catacombs Categories Codeforces ?????????? 2018 - ?????????? ????? 3 3
112 LLPS Categories Codeforces Codeforces Round #127 (Div. 2) 3
113 No to Palindromes! Categories Codeforces Codeforces Round #265 (Div. 1) & Codeforces Round #265 (Div. 2) 3
114 A Problem about Polyline Categories Codeforces Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] & Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] 3
115 New Skateboard Categories Codeforces Educational Codeforces Round 8 3
116 Bear and Reverse Radewoosh Categories Codeforces VK Cup 2016 - Round 1 (Div. 2 Edition) 3
117 DNA Alignment Categories Codeforces Codeforces Round #295 (Div. 2) & Codeforces Round #295 (Div. 1) 3
118 Bear and Colors Categories Codeforces VK Cup 2016 - Round 3 3
119 Frodo and pillows Categories Codeforces Codeforces Round #393 (Div. 2) (8VC Venture Cup 2017 - Final Round Div. 2 Edition) 3
120 T-Shirt Hunt Categories Codeforces Codeforces Round #412 (rated, Div. 2, base on VK Cup 2017 Round 3) 3
121 Santa Claus and Robot Categories Codeforces Technocup 2017 - Elimination Round 3 3
122 Secret Combination Categories Codeforces Codeforces Round #283 (Div. 2) 3
123 Tennis Tournament Categories Codeforces Educational Codeforces Round 8 3
124 Good Sequences Categories Codeforces Codeforces Round #162 (Div. 1) & Codeforces Round #162 (Div. 2) 3
125 Bear and Blocks Categories Codeforces Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 1) & Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) 3
126 Voltage Keepsake Categories Codeforces VK Cup 2017 - Round 2 3
127 Save Energy! Categories Codeforces Codeforces Round #467 (Div. 1) & Codeforces Round #467 (Div. 2) 3
128 Arpa and an exam about geometry Categories Codeforces Codeforces Round #432 (Div. 2, based on IndiaHacks Final Round 2017) 3
129 Bear and Compressing Categories Codeforces IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) 3
130 Robbers' watch Categories Codeforces Codeforces Round #359 (Div. 1) & Codeforces Round #359 (Div. 2) 3
131 Fix a Tree Categories Codeforces Codeforces Round #363 (Div. 1) & Codeforces Round #363 (Div. 2) 3
132 Santa Claus and Keyboard Check Categories Codeforces Technocup 2017 - Elimination Round 3 3
133 Hard Process Categories Codeforces Educational Codeforces Round 11 3
134 Finding Team Member Categories Codeforces Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] 3
135 Constellation Categories Codeforces Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) 3
136 Hongcow Solves A Puzzle Categories Codeforces Codeforces Round #385 (Div. 2) 3
137 Party Lemonade Categories Codeforces Hello 2018 3
138 Travel Card Categories Codeforces 8VC Venture Cup 2017 - Final Round 4
139 Connecting Universities Categories Codeforces Codeforces Round #364 (Div. 1) & Codeforces Round #364 (Div. 2) 4
140 Dreamoon and Sets Categories Codeforces Codeforces Round #272 (Div. 2) & Codeforces Round #272 (Div. 1) 4
141 New Year and Fireworks Categories Codeforces Good Bye 2016 4
142 Five Dimensional Points Categories Codeforces Codeforces Round #432 (Div. 1, based on IndiaHacks Final Round 2017) & Codeforces Round #432 (Div. 2, based on IndiaHacks Final Round 2017) 4
143 Peter and Snow Blower Categories Codeforces Codeforces Round #339 (Div. 1) & Codeforces Round #339 (Div. 2) 4
144 Ciel and Robot Categories Codeforces Codeforces Round #190 (Div. 1) & Codeforces Round #190 (Div. 2) 4
145 Bear and Two Paths Categories Codeforces VK Cup 2016 - Round 3 4
146 Qualification Rounds Categories Codeforces Codeforces Round #438 by Sberbank and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 4
147 Pavel and barbecue Categories Codeforces 8VC Venture Cup 2017 - Final Round 4
148 As Fast As Possible Categories Codeforces Codeforces Round #364 (Div. 1) & Codeforces Round #364 (Div. 2) 4
149 The Smallest String Concatenation Categories Codeforces Educational Codeforces Round 9 4
150 Drazil and Tiles Categories Codeforces Codeforces Round #292 (Div. 2) & Codeforces Round #292 (Div. 1) 4
151 Race Against Time Categories Codeforces Codeforces Round #438 by Sberbank and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 4
152 Volatile Kite Categories Codeforces VK Cup 2017 - Round 2 4
153 Fox And Jumping Categories Codeforces Codeforces Round #290 (Div. 2) & Codeforces Round #290 (Div. 1) 4
154 Gabriel and Caterpillar Categories Codeforces Educational Codeforces Round 10 4
155 Weird Chess Categories Codeforces Codeforces Round #300 4
156 Design Tutorial: Inverse the Problem Categories Codeforces Codeforces Round #270 4
157 Alice, Bob, Two Teams Categories Codeforces Educational Codeforces Round 9 4
158 Appleman and Tree Categories Codeforces Codeforces Round #263 (Div. 1) & Codeforces Round #263 (Div. 2) 4
159 Tennis Game Categories Codeforces Codeforces Round #283 (Div. 2) & Codeforces Round #283 (Div. 1) 4
160 Colliders Categories Codeforces Codeforces Round #109 (Div. 1) & Codeforces Round #109 (Div. 2) 4
161 Problems for Round Categories Codeforces Codeforces Round #351 (VK Cup 2016 Round 3, Div. 2 Edition) 4
162 Too Easy Problems Categories Codeforces Hello 2018 4
163 Grandma Laura and Apples Categories Codeforces Educational Codeforces Round 9 4
164 Ciel the Commander Categories Codeforces Codeforces Round #190 (Div. 1) & Codeforces Round #190 (Div. 2) 4
165 Innokenty and a Football League Categories Codeforces ?????????? 2017 - ????? (?????? ??? ??????-??????????) 4
166 Hidden Word Categories Codeforces Canada Cup 2016 4
167 Bus Game Categories Codeforces Codeforces Beta Round #71 4
168 Hometask Categories Codeforces Codeforces Round #109 (Div. 1) & Codeforces Round #109 (Div. 2) 4
169 Weakness and Poorness Categories Codeforces Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] & Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] 4
170 Skills Categories Codeforces Codeforces Round #339 (Div. 1) & Codeforces Round #339 (Div. 2) 5
171 Ciel and Duel Categories Codeforces Codeforces Round #190 (Div. 1) & Codeforces Round #190 (Div. 2) 5
172 Foe Pairs Categories Codeforces Educational Codeforces Round 10 5
173 Board Game Categories Codeforces VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) 5
174 Restore Cube Categories Codeforces Codeforces Round #265 (Div. 1) 5
175 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
176 Artsem and Saunders Categories Codeforces Codeforces Round #397 by Kaspersky Lab and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 5
177 Bear and Tower of Cubes Categories Codeforces Codeforces Round #356 (Div. 1) & Codeforces Round #356 (Div. 2) 5
178 Fox and Card Game Categories Codeforces Codeforces Round #228 (Div. 1) & Codeforces Round #228 (Div. 2) 5
179 Making Sequences is Fun Categories Codeforces Codeforces Round #219 (Div. 2) 5
180 Counting Rectangles is Fun Categories Codeforces Codeforces Round #219 (Div. 1) & Codeforces Round #219 (Div. 2) 5
181 Fox and Minimal path Categories Codeforces Codeforces Round #228 (Div. 1) & Codeforces Round #228 (Div. 2) 5
182 Sleepy Game Categories Codeforces Codeforces Round #467 (Div. 1) & Codeforces Round #467 (Div. 2) 5
183 Choosing Balls Categories Codeforces Codeforces Round #162 (Div. 1) & Codeforces Round #162 (Div. 2) 5
184 Kay and Snowflake Categories Codeforces Codeforces Round #359 (Div. 1) & Codeforces Round #359 (Div. 2) 5
185 Correcting Mistakes Categories Codeforces VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) 5
186 Bear and Tree Jumps Categories Codeforces VK Cup 2017 - Round 1 5
187 Number of Parallelograms Categories Codeforces Educational Codeforces Round 11 5
188 Underground Lab Categories Codeforces ?????????? 2017 - ????? (?????? ??? ??????-??????????) 5
189 Contest Balloons Categories Codeforces Canada Cup 2016 5
190 Colorful Field Categories Codeforces Codeforces Beta Round #71 5
191 Kyoya and Permutation Categories Codeforces Codeforces Round #309 (Div. 1) & Codeforces Round #309 (Div. 2) 5
192 Clear Symmetry Categories Codeforces Codeforces Round #127 (Div. 1) & Codeforces Round #127 (Div. 2) 5
193 New Year and Ancient Prophecy Categories Codeforces Good Bye 2015 5
194 Literature Lesson Categories Codeforces Codeforces Beta Round #99 (Div. 1) & Codeforces Beta Round #99 (Div. 2) 5
195 Nested Segments Categories Codeforces Educational Codeforces Round 10 5
196 Substitutes in Number Categories Codeforces Codeforces Round #265 (Div. 1) & Codeforces Round #265 (Div. 2) 6
197 Hongcow's Game Categories Codeforces Codeforces Round #385 (Div. 1) & Codeforces Round #385 (Div. 2) 6
198 Pluses everywhere Categories Codeforces Codeforces Round #295 (Div. 2) & Codeforces Round #295 (Div. 1) 6
199 Boredom Categories Codeforces Codeforces Round #433 (Div. 1, based on Olympiad of Metropolises) & Codeforces Round #433 (Div. 2, based on Olympiad of Metropolises) 6
200 Tree Folding Categories Codeforces Codeforces Round #397 by Kaspersky Lab and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 6
201 A Heap of Heaps Categories Codeforces Codeforces Round #300 6
202 Restoration of string Categories Codeforces ?????????? 2018 - ?????????? ????? 3 6
203 Longest Subsequence Categories Codeforces Educational Codeforces Round 9 6
204 Santa Claus and Tangerines Categories Codeforces Technocup 2017 - Elimination Round 3 6
205 Drazil and Park Categories Codeforces Codeforces Round #292 (Div. 2) & Codeforces Round #292 (Div. 1) 6
206 Watching Fireworks is Fun Categories Codeforces Codeforces Round #219 (Div. 1) & Codeforces Round #219 (Div. 2) 6
207 Cubes Categories Codeforces Codeforces Round #295 (Div. 2) & Codeforces Round #295 (Div. 1) 6
208 Delivery Bears Categories Codeforces IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) 6
209 Fox And Dinner Categories Codeforces Codeforces Round #290 (Div. 2) & Codeforces Round #290 (Div. 1) 6
210 Demiurges Play Again Categories Codeforces Codeforces Round #300 6
211 Bear and Polynomials Categories Codeforces VK Cup 2016 - Round 1 6
212 Ciel and Gondolas Categories Codeforces Codeforces Round #190 (Div. 1) 6
213 Santa Claus and a Palindrome Categories Codeforces Technocup 2017 - Elimination Round 3 6
214 Appleman and a Sheet of Paper Categories Codeforces Codeforces Round #263 (Div. 1) & Codeforces Round #263 (Div. 2) 6
215 Beaver Categories Codeforces Codeforces Beta Round #71 6
216 New Year and Arbitrary Arrangement Categories Codeforces Good Bye 2017 6
217 Love Triangles Categories Codeforces Codeforces Round #309 (Div. 1) & Codeforces Round #309 (Div. 2) 6
218 Magic Numbers Categories Codeforces Educational Codeforces Round 8 6
219 Guess That Car! Categories Codeforces Codeforces Round #127 (Div. 1) & Codeforces Round #127 (Div. 2) 6
220 Distributing Parts Categories Codeforces Codeforces Round #283 (Div. 2) 6
221 Double Profiles Categories Codeforces Codeforces Round #109 (Div. 1) & Codeforces Round #109 (Div. 2) 6
222 Wallpaper Categories Codeforces Codeforces Beta Round #99 (Div. 2) 6
223 Bear and Up-Down Categories Codeforces IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) 6
224 High Cry Categories Codeforces Codeforces Round #441 (Div. 1, by Moscow Team Olympiad) & Codeforces Round #441 (Div. 2, by Moscow Team Olympiad) 6
225 Hamiltonian Spanning Tree Categories Codeforces Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) 6
226 National Property Categories Codeforces Codeforces Round #441 (Div. 1, by Moscow Team Olympiad) & Codeforces Round #441 (Div. 2, by Moscow Team Olympiad) 6
227 Dynamic Problem Scoring Categories Codeforces VK Cup 2017 - Round 3 6
228 Mr. Kitayuta's Technology Categories Codeforces Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) 6
229 Dreamoon and Strings Categories Codeforces Codeforces Round #272 (Div. 2) & Codeforces Round #272 (Div. 1) 6
230 Arpa and a list of numbers Categories Codeforces Codeforces Round #432 (Div. 1, based on IndiaHacks Final Round 2017) & Codeforces Round #432 (Div. 2, based on IndiaHacks Final Round 2017) 6
231 Work Group Categories Codeforces VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) 6
232 Set Theory Categories Codeforces Russian Code Cup 2017 - Finals [Unofficial Mirror, Div. 1 Only Recommended, Teams Allowed] 7
233 Levels and Regions Categories Codeforces VK Cup 2016 - Round 3 7
234 Huge Strings Categories Codeforces Codeforces Round #438 by Sberbank and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 7
235 Bear and Forgotten Tree 2 Categories Codeforces IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) 7
236 Bear and Square Grid Categories Codeforces Codeforces Round #356 (Div. 1) & Codeforces Round #356 (Div. 2) 7
237 Bear and Contribution Categories Codeforces VK Cup 2016 - Round 1 7
238 Nudist Beach Categories Codeforces Codeforces Round #309 (Div. 1) 7
239 Fragile Bridges Categories Codeforces Codeforces Round #127 (Div. 1) & Codeforces Round #127 (Div. 2) 7
240 Vulnerable Kerbals Categories Codeforces VK Cup 2017 - Round 2 7
241 Lock Puzzle Categories Codeforces Codeforces Round #467 (Div. 1) & Codeforces Round #467 (Div. 2) 7
242 Encoding Categories Codeforces VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) 7
243 Bear and Company Categories Codeforces VK Cup 2017 - Round 1 7
244 Axel and Marston in Bitland Categories Codeforces ?????????? 2017 - ????? (?????? ??? ??????-??????????) 7
245 Mushroom Gnomes - 2 Categories Codeforces Codeforces Beta Round #99 (Div. 1) & Codeforces Beta Round #99 (Div. 2) 7
246 Bear and Drawing Categories Codeforces Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 1) & Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) 7
247 New Year and Three Musketeers Categories Codeforces Good Bye 2015 7
248 LRU Categories Codeforces Codeforces Round #363 (Div. 1) & Codeforces Round #363 (Div. 2) 7
249 Digits Permutations Categories Codeforces Codeforces Beta Round #99 (Div. 1) & Codeforces Beta Round #99 (Div. 2) 7
250 Prairie Partition Categories Codeforces VK Cup 2017 - Round 3 7
251 Bacterial Melee Categories Codeforces 8VC Venture Cup 2017 - Final Round 7
252 Pursuit For Artifacts Categories Codeforces Educational Codeforces Round 10 7
253 Arpa and a game with Mojtaba Categories Codeforces Codeforces Round #432 (Div. 1, based on IndiaHacks Final Round 2017) & Codeforces Round #432 (Div. 2, based on IndiaHacks Final Round 2017) 7
254 Necklace Categories Codeforces Codeforces Round #339 (Div. 1) & Codeforces Round #339 (Div. 2) 7
255 Hongcow Buys a Deck of Cards Categories Codeforces Codeforces Round #385 (Div. 1) & Codeforces Round #385 (Div. 2) 7
256 Brand New Easy Problem Categories Codeforces Codeforces Round #127 (Div. 2) 7
257 Nikita and stack Categories Codeforces 8VC Venture Cup 2017 - Final Round 7
258 Break Up Categories Codeforces Codeforces Round #364 (Div. 1) & Codeforces Round #364 (Div. 2) 7
259 New Year and Old Subsequence Categories Codeforces Good Bye 2016 7
260 Thief in a Shop Categories Codeforces Educational Codeforces Round 9 7
261 New Year and Rainbow Roads Categories Codeforces Good Bye 2017 7
262 Kay and Eternity Categories Codeforces Codeforces Round #359 (Div. 1) 8
263 Bear and Bowling 4 Categories Codeforces Educational Codeforces Round 11 8
264 Binary Blocks Categories Codeforces IndiaHacks 2nd Elimination 2017 (unofficial, unrated mirror, ICPC rules) 8
265 Password Categories Codeforces Codeforces Beta Round #71 8
266 New Year and Entity Enumeration Categories Codeforces Good Bye 2017 8
267 Zbazi in Zeydabad Categories Codeforces Educational Codeforces Round 8 8
268 Double Knapsack Categories Codeforces Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) 8
269 New Year and Cleaning Categories Codeforces Good Bye 2015 8
270 Delivery Club Categories Codeforces Codeforces Round #441 (Div. 1, by Moscow Team Olympiad) 8
271 Royal Questions Categories Codeforces Codeforces Round #441 (Div. 1, by Moscow Team Olympiad) 8
272 Different Subsets For All Tuples Categories Codeforces Educational Codeforces Round 11 8
273 Too Much Money Categories Codeforces Canada Cup 2016 8
274 Robot Arm Categories Codeforces Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) 8
275 Logical Expression Categories Codeforces Hello 2018 8
276 Kingdom and its Cities Categories Codeforces Codeforces Round #339 (Div. 1) 8
277 Yet Another Minimization Problem Categories Codeforces Codeforces Round #438 by Sberbank and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 8
278 LCS Again Categories Codeforces Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] & Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] 8
279 Magic Matrix Categories Codeforces Educational Codeforces Round 9 8
280 Drazil and Morning Exercise Categories Codeforces Codeforces Round #292 (Div. 1) 8
281 World of Darkraft - 2 Categories Codeforces Codeforces Round #265 (Div. 1) 8
282 Shop Categories Codeforces Codeforces Round #295 (Div. 1) 8
283 Souvenirs Categories Codeforces Codeforces Round #397 by Kaspersky Lab and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 8
284 New Year and Original Order Categories Codeforces Good Bye 2017 8
285 Paper task Categories Codeforces IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) 8
286 Michael and Charging Stations Categories Codeforces Codeforces Round #433 (Div. 1, based on Olympiad of Metropolises) 8
287 Maximum Element Categories Codeforces ?????????? 2018 - ?????????? ????? 3 8
288 Santa Clauses and a Soccer Championship Categories Codeforces Technocup 2017 - Elimination Round 3 8
289 Choosing Subtree is Fun Categories Codeforces Codeforces Round #219 (Div. 1) 8
290 Bear and Fair Set Categories Codeforces Educational Codeforces Round 8 9
291 Brand New Problem Categories Codeforces Codeforces Round #127 (Div. 1) 9
292 Varying Kibibits Categories Codeforces VK Cup 2017 - Round 2 9
293 The Beaver's Problem - 2 Categories Codeforces ABBYY Cup 2.0 - Hard 9
294 Roadside Trees Categories Codeforces Codeforces Round #162 (Div. 1) 9
295 Fox And Travelling Categories Codeforces Codeforces Round #290 (Div. 1) 9
296 Fox and Perfect Sets Categories Codeforces Codeforces Round #228 (Div. 1) 9
297 Design Tutorial: Change the Goal Categories Codeforces Codeforces Round #270 9
298 Andryusha and Nervous Barriers Categories Codeforces ?????????? 2017 - ????? (?????? ??? ??????-??????????) 9
299 World of Darkraft Categories Codeforces Codeforces Beta Round #99 (Div. 1) 9
300 Beaver's Calculator 1.0 Categories Codeforces Abbyy Cup 2.0 - Final (unofficial) 9
301 Appleman and Complicated Task Categories Codeforces Codeforces Round #263 (Div. 1) 9
302 Family Photos Categories Codeforces Canada Cup 2016 9
303 Bear and Cavalry Categories Codeforces Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 1) 9
304 Flatland Fencing Categories Codeforces Codeforces Round #109 (Div. 1) 9
305 Colorful Stones Categories Codeforces Codeforces Round #162 (Div. 1) 9
306 Strongly Connected Tournament Categories Codeforces Hello 2018 9
307 Optimal Point Categories Codeforces Codeforces Round #359 (Div. 1) & Codeforces Round #359 (Div. 2) 9
308 Limak and Shooting Points Categories Codeforces Codeforces Round #363 (Div. 1) & Codeforces Round #363 (Div. 2) 9
309 Convex Countour Categories Codeforces IndiaHacks 2nd Elimination 2017 (unofficial, unrated mirror, ICPC rules) 9
310 Masha and Cactus Categories Codeforces Russian Code Cup 2017 - Finals [Unofficial Mirror, Div. 1 Only Recommended, Teams Allowed] 9
311 Perishable Roads Categories Codeforces VK Cup 2017 - Round 3 9
312 Huffman Coding on Segment Categories Codeforces Codeforces Round #364 (Div. 1) 9
313 Tournament Construction Categories Codeforces Codeforces Round #432 (Div. 1, based on IndiaHacks Final Round 2017) 9
314 Walking! Categories Codeforces Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] 9
315 Military Trainings Categories Codeforces Abbyy Cup 2.0 - Final (unofficial) 9
316 Cycling City Categories Codeforces Codeforces Round #295 (Div. 1) 9
317 The Classic Problem Categories Codeforces Codeforces Round #265 (Div. 1) 9
318 Eleventh Birthday Categories Codeforces Russian Code Cup 2017 - Finals [Unofficial Mirror, Div. 1 Only Recommended, Teams Allowed] 9
319 Ciel and Flipboard Categories Codeforces Codeforces Round #190 (Div. 1) 9
320 Bear and Destroying Subtrees Categories Codeforces VK Cup 2016 - Round 3 9
321 Thoroughly Bureaucratic Organization Categories Codeforces Codeforces Round #127 (Div. 1) 9
322 Move by Prime Categories Codeforces IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) 9
323 Bear and Bad Powers of 42 Categories Codeforces Codeforces Round #356 (Div. 1) 9
324 Cool Slogans Categories Codeforces Codeforces Round #364 (Div. 1) 9
325 New Year and Finding Roots Categories Codeforces Good Bye 2016 9
326 Mr. Kitayuta vs. Bamboos Categories Codeforces Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) 9
327 Dreamoon and Binary Categories Codeforces Codeforces Round #272 (Div. 1) 9
328 Beaver's Calculator 1.0 Categories Codeforces Abbyy Cup 2.0 - Final (unofficial) 9
329 Similar Words Categories Codeforces Russian Code Cup 2017 - Finals [Unofficial Mirror, Div. 1 Only Recommended, Teams Allowed] 9
330 Policeman and a Tree Categories Codeforces Codeforces Round #438 by Sberbank and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 9
331 Bear and Chase Categories Codeforces Codeforces Round #356 (Div. 1) 9
332 Fox And Polygon Categories Codeforces Codeforces Round #290 (Div. 1) 9
333 Travelling Through the Snow Queen's Kingdom Categories Codeforces Codeforces Round #359 (Div. 1) 9
334 Design Tutorial: Increase the Constraints Categories Codeforces Codeforces Round #270 9
335 Bear and Paradox Categories Codeforces VK Cup 2016 - Round 1 9
336 Beaver's Calculator 1.0 Categories Codeforces Abbyy Cup 2.0 - Final (unofficial) 9
337 Diverging Directions Categories Codeforces IndiaHacks 2nd Elimination 2017 (unofficial, unrated mirror, ICPC rules) 9
338 Combining Slimes Categories Codeforces Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) 10
339 Bear and Bowling Categories Codeforces Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 1) 10
340 Subsequences Return Categories Codeforces Codeforces Round #283 (Div. 1) 10
341 World of Tank Categories Codeforces Codeforces Round #467 (Div. 1) 10
342 New Year and Cake Categories Codeforces Good Bye 2015 10
343 Martian Colony Categories Codeforces Codeforces Round #109 (Div. 1) 10
344 Military Trainings Categories Codeforces Abbyy Cup 2.0 - Final (unofficial) 10
345 Power Substring Categories Codeforces Hello 2018 10
346 Cron Categories Codeforces Codeforces Round #363 (Div. 1) 10
347 Satellites Categories Codeforces Russian Code Cup 2017 - Finals [Unofficial Mirror, Div. 1 Only Recommended, Teams Allowed] 10
348 Rainbow Balls Categories Codeforces Codeforces Round #432 (Div. 1, based on IndiaHacks Final Round 2017) 10
349 Expected Earnings Categories Codeforces IndiaHacks 2nd Elimination 2017 (unofficial, unrated mirror, ICPC rules) 10
350 Bear and Rectangle Strips Categories Codeforces VK Cup 2017 - Round 1 10
351 Choosing Ads Categories Codeforces VK Cup 2016 - Round 3 10
352 The Beaver's Problem - 3 Categories Codeforces Abbyy Cup 2.0 - Final (unofficial) 10
353 Berland Miners Categories Codeforces VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) 10
354 Blog Post Rating Categories Codeforces VK Cup 2017 - Round 3 10
355 Long number Categories Codeforces 8VC Venture Cup 2017 - Final Round 10
356 New Year and Snowy Grid Categories Codeforces Good Bye 2016 10
357 Dynamic Shortest Path Categories Codeforces AIM Tech Round 4 (Div. 1) 10
358 The Beaver's Problem - 3 Categories Codeforces Abbyy Cup 2.0 - Final (unofficial) 10
359 Gears Categories Codeforces Codeforces Round #283 (Div. 1) 10
360 Military Trainings Categories Codeforces Abbyy Cup 2.0 - Final (unofficial) 10
361 Random Elections Categories Codeforces Codeforces Round #432 (Div. 1, based on IndiaHacks Final Round 2017) 10
362 The Beaver's Problem - 3 Categories Codeforces Abbyy Cup 2.0 - Final (unofficial) 10
363 Mirror Box Categories Codeforces Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] 10
364 Hongcow Masters the Cyclic Shift Categories Codeforces Codeforces Round #385 (Div. 1) 10
365 Design Tutorial: Learn from a Game Categories Codeforces Codeforces Round #270 10
366 Puzzle Lover Categories Codeforces Codeforces Round #339 (Div. 1) 10
367 Bears and Juice Categories Codeforces VK Cup 2016 - Round 3 10
368 El Toll Caves Categories Codeforces Codeforces Round #438 by Sberbank and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 10
369 The Beaver's Problem - 3 Categories Codeforces Abbyy Cup 2.0 - Final (unofficial) 10
370 Byteland coins Categories Codeforces 8VC Venture Cup 2017 - Final Round 10
371 New Year and Binary Tree Paths Categories Codeforces Good Bye 2016 10
372 Ants on a Circle Categories Codeforces Educational Codeforces Round 10 10
373 Mod Mod Mod Categories Codeforces Codeforces Round #445 (Div. 1, based on Technocup 2018 Elimination Round 3) 10
374 Game with Two Trees Categories Codeforces Abbyy Cup 2.0 - Final (unofficial) 10
375 The Beaver's Problem - 3 Categories Codeforces Abbyy Cup 2.0 - Final (unofficial) 10
376 Dreamoon and Notepad Categories Codeforces Codeforces Round #272 (Div. 1) 10
377 Future Failure Categories Codeforces IndiaHacks 2nd Elimination 2017 (unofficial, unrated mirror, ICPC rules) 10
378 Hongcow Draws a Circle Categories Codeforces Codeforces Round #385 (Div. 1) 10
379 New Year and Boolean Bridges Categories Codeforces Good Bye 2017 10
380 The Beaver's Problem - 3 Categories Codeforces Abbyy Cup 2.0 - Final (unofficial) 10
381 Math, math everywhere Categories Codeforces Codeforces Round #397 by Kaspersky Lab and Barcelona Bootcamp (Div. 1 + Div. 2 combined) 10
382 Lada Malina Categories Codeforces Codeforces Round #433 (Div. 1, based on Olympiad of Metropolises) 10
383 Summer Dichotomy Categories Codeforces Codeforces Round #300 10
384 Symmetric Projections Categories Codeforces ?????????? 2018 - ?????????? ????? 3 10
385 Bear and Chemistry Categories Codeforces VK Cup 2016 - Round 1 10
386 Game with Two Trees Categories Codeforces Abbyy Cup 2.0 - Final (unofficial) 10
387 Airplane Arrangements Categories Codeforces IndiaHacks 2nd Elimination 2017 (unofficial, unrated mirror, ICPC rules) 10
388 The Beaver's Problem - 3 Categories Codeforces Abbyy Cup 2.0 - Final (unofficial) 10
389 Drawing Circles is Fun Categories Codeforces Codeforces Round #219 (Div. 1) 10
390 Landmarks Categories Codeforces VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) 10
391 Bearish Fanpages Categories Codeforces VK Cup 2016 - Round 3 10
392 Verifying Kingdom Categories Codeforces VK Cup 2017 - Round 2 10
393 The Beaver's Problem - 3 Categories Codeforces Abbyy Cup 2.0 - Final (unofficial) 10
394 Iqea Categories Codeforces Codeforces Round #467 (Div. 1) 10
395 New Year and Forgotten Tree Categories Codeforces Good Bye 2015 10
396 Game with Two Trees Categories Codeforces Abbyy Cup 2.0 - Final (unofficial) 10
397 Don't Exceed Categories Codeforces Hello 2018 10
398 Coprime Permutation Categories Codeforces Codeforces Round #363 (Div. 1) 10
399 Fox and Meteor Shower Categories Codeforces Codeforces Round #228 (Div. 1) 10
400 Berserk Robot Categories Codeforces Codeforces Round #300 10
401 To Play or not to Play Categories Codeforces Russian Code Cup 2017 - Finals [Unofficial Mirror, Div. 1 Only Recommended, Teams Allowed] 10
402 Bear and Isomorphic Points Categories Codeforces VK Cup 2017 - Round 1 10
403 Intranet of Buses Categories Codeforces ?????????? 2017 - ????? (?????? ??? ??????-??????????) 10
404 Hellish Constraints Categories Codeforces Codeforces Beta Round #99 (Div. 1) 10
405 The Beaver's Problem - 3 Categories Codeforces Abbyy Cup 2.0 - Final (unofficial) 10
406 Appleman and a Game Categories Codeforces Codeforces Round #263 (Div. 1) 10
407 Test Data Generation Categories Codeforces VK Cup 2017 - Round 3 10
408 Messages on a Tree Categories Codeforces Canada Cup 2016 10
409 Security System Categories Codeforces Codeforces Beta Round #71 10
410 Kyoya and Train Categories Codeforces Codeforces Round #309 (Div. 1) 10