| Problem Name | Online Judge | Contest | Difficulty Level | |
|---|---|---|---|---|
| 1 | Tetrahedron | Codeforces | Codeforces Round #113 (Div. 2) | 1 |
| 2 | Expression | Codeforces | Codeforces Round #274 (Div. 2) | 1 |
| 3 | Sereja and Brackets | Codeforces | Codeforces Round #223 (Div. 1) & Codeforces Round #223 (Div. 2) | 3 |
| 4 | New Reform | Codeforces | Codeforces Round #346 (Div. 2) | 3 |
| 5 | Enemy is weak | Codeforces | Codeforces Beta Round #57 (Div. 2) | 4 |
| 6 | Fools and Roads | Codeforces | Codeforces Round #121 (Div. 1) & Codeforces Round #121 (Div. 2) | 4 |
| 7 | XOR on Segment | Codeforces | Codeforces Round #149 (Div. 2) | 4 |
| 8 | Ciel the Commander | Codeforces | Codeforces Round #190 (Div. 1) & Codeforces Round #190 (Div. 2) | 4 |
| 9 | Xenia and Tree | Codeforces | Codeforces Round #199 (Div. 2) | 4 |
| 10 | Propagating tree | Codeforces | Codeforces Round #225 (Div. 1) & Codeforces Round #225 (Div. 2) | 4 |
| 11 | Civilization | Codeforces | Codeforces Round #260 (Div. 1) & Codeforces Round #260 (Div. 2) | 4 |
| 12 | Pashmak and Graph | Codeforces | Codeforces Round #261 (Div. 2) | 4 |
| 13 | Riding in a Lift | Codeforces | Codeforces Round #274 (Div. 2) & Codeforces Round #274 (Div. 1) | 4 |
| 14 | A and B and Lecture Rooms | Codeforces | Codeforces Round #294 (Div. 2) | 4 |
| 15 | Paths and Trees | Codeforces | Codeforces Round #303 (Div. 2) | 4 |
| 16 | Gerald and Giant Chess | Codeforces | Codeforces Round #313 (Div. 1) & Codeforces Round #313 (Div. 2) | 4 |
| 17 | Weakness and Poorness | Codeforces | Codeforces Round #320 (Div. 1) [Bayan Thanks-Round] & Codeforces Round #320 (Div. 2) [Bayan Thanks-Round] | 4 |
| 18 | XOR and Favorite Number | Codeforces | Codeforces Round #340 (Div. 2) | 4 |
| 19 | Correct Bracket Sequence Editor | Codeforces | Codeforces Round #350 (Div. 2) | 4 |
| 20 | The Values You Can Make | Codeforces | Codeforces Round #360 (Div. 1) & Codeforces Round #360 (Div. 2) | 4 |
| 21 | Connecting Universities | Codeforces | Codeforces Round #364 (Div. 1) & Codeforces Round #364 (Div. 2) | 4 |
| 22 | Fire | Codeforces | Codeforces Round #436 (Div. 2) | 4 |
| 23 | Squares and not squares | Codeforces | Codeforces Round #451 (Div. 2) | 4 |
| 24 | Exposition | Codeforces | Codeforces Beta Round #6 (Div. 2 Only) | 5 |
| 25 | Number With The Given Amount Of Divisors | Codeforces | Codeforces Beta Round #27 (Codeforces format, Div. 2) | 5 |
| 26 | Subsegments | Codeforces | Codeforces Beta Round #63 (Div. 2) | 5 |
| 27 | Games with Rectangle | Codeforces | Codeforces Beta Round #94 (Div. 1 Only) & Codeforces Beta Round #94 (Div. 2 Only) | 5 |
| 28 | Logo Turtle | Codeforces | Codeforces Beta Round #96 (Div. 1) & Codeforces Beta Round #96 (Div. 2) | 5 |
| 29 | Porcelain | Codeforces | Codeforces Round #105 (Div. 2) | 5 |
| 30 | Compatible Numbers | Codeforces | Codeforces Round #112 (Div. 2) | 5 |
| 31 | Blood Cousins | Codeforces | Codeforces Round #130 (Div. 2) | 5 |
| 32 | Choosing Balls | Codeforces | Codeforces Round #162 (Div. 1) & Codeforces Round #162 (Div. 2) | 5 |
| 33 | Sausage Maximization | Codeforces | Codeforces Round #173 (Div. 2) | 5 |
| 34 | Polo the Penguin and XOR operation | Codeforces | Codeforces Round #177 (Div. 1) & Codeforces Round #177 (Div. 2) | 5 |
| 35 | Kalila and Dimna in the Logging Industry | Codeforces | Codeforces Round #189 (Div. 1) & Codeforces Round #189 (Div. 2) | 5 |
| 36 | Iahub and Permutations | Codeforces | Codeforces Round #198 (Div. 2) & Codeforces Round #198 (Div. 1) | 5 |
| 37 | Read Time | Codeforces | Codeforces Round #200 (Div. 1) & Codeforces Round #200 (Div. 2) | 5 |
| 38 | Vasya and Beautiful Arrays | Codeforces | Codeforces Round #206 (Div. 1) & Codeforces Round #206 (Div. 2) | 5 |
| 39 | Fox and Card Game | Codeforces | Codeforces Round #228 (Div. 1) & Codeforces Round #228 (Div. 2) | 5 |
| 40 | Mashmokh and Reverse Operation | Codeforces | Codeforces Round #240 (Div. 1) & Codeforces Round #240 (Div. 2) | 5 |
| 41 | Pillars | Codeforces | Codeforces Round #271 (Div. 2) | 5 |
| 42 | Array and Operations | Codeforces | Codeforces Round #284 (Div. 1) & Codeforces Round #284 (Div. 2) | 5 |
| 43 | Breaking Good | Codeforces | Codeforces Round #287 (Div. 2) | 5 |
| 44 | Pretty Song | Codeforces | Codeforces Round #289 (Div. 2, ACM ICPC Rules) | 5 |
| 45 | Soldier and Traveling | Codeforces | Codeforces Round #304 (Div. 2) | 5 |
| 46 | Case of Chocolate | Codeforces | Codeforces Round #310 (Div. 1) & Codeforces Round #310 (Div. 2) | 5 |
| 47 | A Simple Task | Codeforces | Codeforces Round #312 (Div. 2) | 5 |
| 48 | Points on Plane | Codeforces | Codeforces Round #319 (Div. 1) & Codeforces Round #319 (Div. 2) | 5 |
| 49 | Duff in the Army | Codeforces | Codeforces Round #326 (Div. 1) & Codeforces Round #326 (Div. 2) | 5 |
| 50 | Three States | Codeforces | Codeforces Round #327 (Div. 1) & Codeforces Round #327 (Div. 2) | 5 |
| 51 | Wet Shark and Blocks | Codeforces | Codeforces Round #341 (Div. 2) | 5 |
| 52 | Little Artem and Time Machine | Codeforces | VK Cup 2016 - Round 2 | 5 |
| 53 | Sasha and Array | Codeforces | Codeforces Round #373 (Div. 1) & Codeforces Round #373 (Div. 2) | 5 |
| 54 | Anton and Tree | Codeforces | Codeforces Round #379 (Div. 2) | 5 |
| 55 | Subordinates | Codeforces | Technocup 2017 - Elimination Round 2 | 5 |
| 56 | Comments | Codeforces | Codeforces Round #387 (Div. 2) | 5 |
| 57 | Game of Stones | Codeforces | Divide by Zero 2017 and Codeforces Round #399 (Div. 1 + Div. 2, combined) | 5 |
| 58 | Hanoi Factory | Codeforces | Codeforces Round #401 (Div. 2) | 5 |
| 59 | Bitwise Formula | Codeforces | Codeforces Round #402 (Div. 1) & Codeforces Round #402 (Div. 2) | 5 |
| 60 | Underground Lab | Codeforces | ?????????? 2017 - ????? (?????? ??? ??????-??????????) | 5 |
| 61 | 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 |
| 62 | Maximize! | Codeforces | Codeforces Round #464 (Div. 2) | 5 |
| 63 | Minimum spanning tree for each edge | Codeforces | Educational Codeforces Round 3 | 5 |
| 64 | Holes | Codeforces | Codeforces Beta Round #13 | 6 |
| 65 | Fish | Codeforces | Codeforces Beta Round #16 (Div. 2 Only) | 6 |
| 66 | Test | Codeforces | Codeforces Beta Round #25 (Div. 2 Only) | 6 |
| 67 | Let's Go Rolling! | Codeforces | School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round #38 (ACM-ICPC Rules) | 6 |
| 68 | 3-cycles | Codeforces | Codeforces Beta Round #40 (Div. 2) | 6 |
| 69 | Interesting Game | Codeforces | Codeforces Beta Round #73 (Div. 1 Only) & Codeforces Beta Round #73 (Div. 2 Only) | 6 |
| 70 | Time to Raid Cowavans | Codeforces | Codeforces Beta Round #80 (Div. 1 Only) & Codeforces Beta Round #80 (Div. 2 Only) | 6 |
| 71 | Bertown roads | Codeforces | Codeforces Beta Round #89 (Div. 2) | 6 |
| 72 | Lucky Permutation | Codeforces | Codeforces Beta Round #91 (Div. 1 Only) & Codeforces Beta Round #91 (Div. 2 Only) | 6 |
| 73 | Yet Another Task with Queens | Codeforces | Codeforces Beta Round #95 (Div. 2) | 6 |
| 74 | Zero-One | Codeforces | Codeforces Beta Round #97 (Div. 1) & Codeforces Beta Round #97 (Div. 2) | 6 |
| 75 | Lucky Subsequence | Codeforces | Codeforces Round #104 (Div. 1) & Codeforces Round #104 (Div. 2) | 6 |
| 76 | Martian Strings | Codeforces | Codeforces Round #106 (Div. 2) | 6 |
| 77 | Double Profiles | Codeforces | Codeforces Round #109 (Div. 1) & Codeforces Round #109 (Div. 2) | 6 |
| 78 | Cipher | Codeforces | Codeforces Round #110 (Div. 1) & Codeforces Round #110 (Div. 2) | 6 |
| 79 | Relay Race | Codeforces | Codeforces Round #131 (Div. 1) & Codeforces Round #131 (Div. 2) | 6 |
| 80 | Decoding Genome | Codeforces | Codeforces Round #137 (Div. 2) | 6 |
| 81 | Partial Sums | Codeforces | Codeforces Round #138 (Div. 1) & Codeforces Round #138 (Div. 2) | 6 |
| 82 | The Road to Berland is Paved With Good Intentions | Codeforces | Codeforces Round #141 (Div. 2) | 6 |
| 83 | Triangles | Codeforces | Codeforces Round #142 (Div. 1) & Codeforces Round #142 (Div. 2) | 6 |
| 84 | Little Elephant and LCM | Codeforces | Codeforces Round #157 (Div. 1) & Codeforces Round #157 (Div. 2) | 6 |
| 85 | Flawed Flow | Codeforces | Codeforces Round #165 (Div. 1) & Codeforces Round #165 (Div. 2) | 6 |
| 86 | Beautiful Decomposition | Codeforces | Codeforces Round #171 (Div. 2) | 6 |
| 87 | Game on Tree | Codeforces | Codeforces Round #172 (Div. 1) & Codeforces Round #172 (Div. 2) | 6 |
| 88 | Main Sequence | Codeforces | Codeforces Round #176 (Div. 1) & Codeforces Round #176 (Div. 2) | 6 |
| 89 | Greg and Friends | Codeforces | Codeforces Round #179 (Div. 1) & Codeforces Round #179 (Div. 2) | 6 |
| 90 | Sereja and Subsequences | Codeforces | Codeforces Round #187 (Div. 1) & Codeforces Round #187 (Div. 2) | 6 |
| 91 | Number Transformation II | Codeforces | Codeforces Round #201 (Div. 1) & Codeforces Round #201 (Div. 2) | 6 |
| 92 | Compartments | Codeforces | Codeforces Round #207 (Div. 1) & Codeforces Round #207 (Div. 2) | 6 |
| 93 | Sereja and the Arrangement of Numbers | Codeforces | Codeforces Round #215 (Div. 1) & Codeforces Round #215 (Div. 2) | 6 |
| 94 | Valera and Queries | Codeforces | Codeforces Round #216 (Div. 2) | 6 |
| 95 | Watching Fireworks is Fun | Codeforces | Codeforces Round #219 (Div. 1) & Codeforces Round #219 (Div. 2) | 6 |
| 96 | On Changing Tree | Codeforces | Codeforces Round #232 (Div. 1) & Codeforces Round #232 (Div. 2) | 6 |
| 97 | Strictly Positive Matrix | Codeforces | Codeforces Round #236 (Div. 2) & Codeforces Round #236 (Div. 1) | 6 |
| 98 | Police Patrol | Codeforces | Codeforces Round #244 (Div. 2) | 6 |
| 99 | Artem and Array | Codeforces | Codeforces Round #253 (Div. 1) | 6 |
| 100 | DZY Loves Colors | Codeforces | Codeforces Round #254 (Div. 1) & Codeforces Round #254 (Div. 2) | 6 |
| 101 | Divisors | Codeforces | Codeforces Round #256 (Div. 2) | 6 |
| 102 | Jzzhu and Apples | Codeforces | Codeforces Round #257 (Div. 1) & Codeforces Round #257 (Div. 2) | 6 |
| 103 | Devu and Flowers | Codeforces | Codeforces Round #258 (Div. 2) | 6 |
| 104 | Little Pony and Summer Sun Celebration | Codeforces | Codeforces Round #259 (Div. 1) & Codeforces Round #259 (Div. 2) | 6 |
| 105 | Appleman and a Sheet of Paper | Codeforces | Codeforces Round #263 (Div. 1) & Codeforces Round #263 (Div. 2) | 6 |
| 106 | Caisa and Tree | Codeforces | Codeforces Round #264 (Div. 2) | 6 |
| 107 | Substitutes in Number | Codeforces | Codeforces Round #265 (Div. 1) & Codeforces Round #265 (Div. 2) | 6 |
| 108 | Information Graph | Codeforces | Codeforces Round #266 (Div. 2) | 6 |
| 109 | Dreamoon and Strings | Codeforces | Codeforces Round #272 (Div. 2) & Codeforces Round #272 (Div. 1) | 6 |
| 110 | LIS of Sequence | Codeforces | Codeforces Round #277 (Div. 2) | 6 |
| 111 | Prefix Product Sequence | Codeforces | Codeforces Round #278 (Div. 2) & Codeforces Round #278 (Div. 1) & Codeforces Round #278 (Div. 2) & Codeforces Round #278 (Div. 1) | 6 |
| 112 | Restoring Increasing Sequence | Codeforces | Codeforces Round #279 (Div. 2) | 6 |
| 113 | Vanya and Field | Codeforces | Codeforces Round #280 (Div. 2) | 6 |
| 114 | Distributing Parts | Codeforces | Codeforces Round #283 (Div. 2) | 6 |
| 115 | Arthur and Brackets | Codeforces | Codeforces Round #288 (Div. 2) | 6 |
| 116 | Fox And Dinner | Codeforces | Codeforces Round #290 (Div. 2) & Codeforces Round #290 (Div. 1) | 6 |
| 117 | Drazil and Park | Codeforces | Codeforces Round #292 (Div. 2) & Codeforces Round #292 (Div. 1) | 6 |
| 118 | Pluses everywhere | Codeforces | Codeforces Round #295 (Div. 2) & Codeforces Round #295 (Div. 1) | 6 |
| 119 | Anya and Cubes | Codeforces | Codeforces Round #297 (Div. 2) | 6 |
| 120 | Demiurges Play Again | Codeforces | Codeforces Round #300 | 6 |
| 121 | Infinite Inversions | Codeforces | Codeforces Round #301 (Div. 2) | 6 |
| 122 | Brackets in Implications | Codeforces | Codeforces Round #306 (Div. 2) | 6 |
| 123 | GukiZ and GukiZiana | Codeforces | Codeforces Round #307 (Div. 2) | 6 |
| 124 | Vanya and Brackets | Codeforces | Codeforces Round #308 (Div. 2) | 6 |
| 125 | Love Triangles | Codeforces | Codeforces Round #309 (Div. 1) & Codeforces Round #309 (Div. 2) | 6 |
| 126 | Pig and Palindromes | Codeforces | Codeforces Round #316 (Div. 2) | 6 |
| 127 | Kefa and Watch | Codeforces | Codeforces Round #321 (Div. 2) | 6 |
| 128 | Anton and Ira | Codeforces | Codeforces Round #324 (Div. 2) | 6 |
| 129 | Lieges of Legendre | Codeforces | Codeforces Round #334 (Div. 1) & Codeforces Round #334 (Div. 2) | 6 |
| 130 | Table Compression | Codeforces | Codeforces Round #345 (Div. 1) & Codeforces Round #345 (Div. 2) | 6 |
| 131 | Trains and Statistic | Codeforces | Codeforces Round #353 (Div. 2) | 6 |
| 132 | Mike and Geometry Problem | Codeforces | Codeforces Round #361 (Div. 2) | 6 |
| 133 | PLEASE | Codeforces | Codeforces Round #362 (Div. 1) & Codeforces Round #362 (Div. 2) | 6 |
| 134 | ZS and The Birthday Paradox | Codeforces | Codeforces Round #369 (Div. 2) | 6 |
| 135 | Sonya and Problem Wihtout a Legend | Codeforces | Codeforces Round #371 (Div. 1) & Codeforces Round #371 (Div. 2) | 6 |
| 136 | One-Way Reform | Codeforces | Codeforces Round #375 (Div. 2) | 6 |
| 137 | Sockets | Codeforces | Codeforces Round #377 (Div. 2) | 6 |
| 138 | Arpa’s overnight party and Mehrdad’s silent entering | Codeforces | Codeforces Round #383 (Div. 1) & Codeforces Round #383 (Div. 2) | 6 |
| 139 | Numbers Exchange | Codeforces | Codeforces Round #386 (Div. 2) | 6 |
| 140 | Vladik and cards | Codeforces | Codeforces Round #384 (Div. 2) | 6 |
| 141 | New Year Domino | Codeforces | Good Bye 2014 | 6 |
| 142 | Santa Claus and Tangerines | Codeforces | Technocup 2017 - Elimination Round 3 | 6 |
| 143 | Dasha and Puzzle | Codeforces | Codeforces Round #394 (Div. 2) | 6 |
| 144 | Mahmoud and a xor trip | Codeforces | Codeforces Round #396 (Div. 2) | 6 |
| 145 | Tree Folding | Codeforces | Codeforces Round #397 by Kaspersky Lab and Barcelona Bootcamp (Div. 1 + Div. 2 combined) | 6 |
| 146 | The Holmes Children | Codeforces | ICM Technex 2017 and Codeforces Round #400 (Div. 1 + Div. 2, combined) | 6 |
| 147 | The Great Mixing | Codeforces | Codeforces Round #407 (Div. 1) & Codeforces Round #407 (Div. 2) | 6 |
| 148 | Ice cream coloring | Codeforces | Codeforces Round #411 (Div. 1) & Codeforces Round #411 (Div. 2) | 6 |
| 149 | Karen and Supermarket | Codeforces | Codeforces Round #419 (Div. 1) & Codeforces Round #419 (Div. 2) | 6 |
| 150 | DNA Evolution | Codeforces | Codeforces Round #423 (Div. 1, rated, based on VK Cup Finals) & Codeforces Round #423 (Div. 2, rated, based on VK Cup Finals) | 6 |
| 151 | Okabe and El Psy Kongroo | Codeforces | Codeforces Round #420 (Div. 2) | 6 |
| 152 | National Property | Codeforces | Codeforces Round #441 (Div. 1, by Moscow Team Olympiad) & Codeforces Round #441 (Div. 2, by Moscow Team Olympiad) | 6 |
| 153 | Bindian Signalizing | Codeforces | Codeforces Beta Round #5 | 7 |
| 154 | Camels | Codeforces | Codeforces Beta Round #14 (Div. 2) | 7 |
| 155 | Fairy | Codeforces | Codeforces Beta Round #19 | 7 |
| 156 | TV Game | Codeforces | Codeforces Beta Round #31 (Div. 2, Codeforces format) | 7 |
| 157 | Comb | Codeforces | School Personal Contest #2 (Winter Computer School 2010/11) - Codeforces Beta Round #43 (ACM-ICPC Rules) | 7 |
| 158 | Domino Principle | Codeforces | Codeforces Beta Round #52 (Div. 2) | 7 |
| 159 | Shortest Path | Codeforces | Codeforces Beta Round #55 (Div. 2) | 7 |
| 160 | Beavermuncher-0xFF | Codeforces | Codeforces Beta Round #69 (Div. 1 Only) & Codeforces Beta Round #69 (Div. 2 Only) | 7 |
| 161 | Ski Base | Codeforces | Codeforces Beta Round #75 (Div. 1 Only) & Codeforces Beta Round #75 (Div. 2 Only) | 7 |
| 162 | Petya and Spiders | Codeforces | Codeforces Beta Round #85 (Div. 1 Only) & Codeforces Beta Round #85 (Div. 2 Only) | 7 |
| 163 | Double Happiness | Codeforces | Codeforces Beta Round #86 (Div. 1 Only) & Codeforces Beta Round #86 (Div. 2 Only) | 7 |
| 164 | Last Chance | Codeforces | Codeforces Beta Round #98 (Div. 2) | 7 |
| 165 | Mushroom Gnomes - 2 | Codeforces | Codeforces Beta Round #99 (Div. 1) & Codeforces Beta Round #99 (Div. 2) | 7 |
| 166 | Cubes | Codeforces | Codeforces Round #116 (Div. 2, ACM-ICPC Rules) | 7 |
| 167 | Wooden Fence | Codeforces | Codeforces Round #117 (Div. 2) | 7 |
| 168 | Weak Memory | Codeforces | Codeforces Round #119 (Div. 1) & Codeforces Round #119 (Div. 2) | 7 |
| 169 | Counter Attack | Codeforces | Codeforces Round #120 (Div. 2) | 7 |
| 170 | Paint Tree | Codeforces | Codeforces Round #124 (Div. 1) & Codeforces Round #124 (Div. 2) | 7 |
| 171 | Fragile Bridges | Codeforces | Codeforces Round #127 (Div. 1) & Codeforces Round #127 (Div. 2) | 7 |
| 172 | Little Elephant and Furik and Rubik | Codeforces | Codeforces Round #129 (Div. 1) & Codeforces Round #129 (Div. 2) | 7 |
| 173 | Little Elephant and Shifts | Codeforces | Codeforces Round #136 (Div. 1) & Codeforces Round #136 (Div. 2) | 7 |
| 174 | Cactus | Codeforces | Codeforces Round #143 (Div. 2) | 7 |
| 175 | Champions' League | Codeforces | Codeforces Round #145 (Div. 2, ACM-ICPC Rules) | 7 |
| 176 | Cyclical Quest | Codeforces | Codeforces Round #146 (Div. 1) & Codeforces Round #146 (Div. 2) | 7 |
| 177 | Build String | Codeforces | Codeforces Round #147 (Div. 2) | 7 |
| 178 | World Eater Brothers | Codeforces | Codeforces Round #148 (Div. 1) & Codeforces Round #148 (Div. 2) | 7 |
| 179 | Blood Cousins Return | Codeforces | Codeforces Round #151 (Div. 2) | 7 |
| 180 | Number Transformation | Codeforces | Codeforces Round #153 (Div. 1) & Codeforces Round #153 (Div. 2) | 7 |
| 181 | Furlo and Rublo and Game | Codeforces | Codeforces Round #156 (Div. 2) & Codeforces Round #156 (Div. 1) | 7 |
| 182 | Maxim and Matrix | Codeforces | Codeforces Round #160 (Div. 1) & Codeforces Round #160 (Div. 2) | 7 |
| 183 | Playlist | Codeforces | Codeforces Round #164 (Div. 2) | 7 |
| 184 | Dima and Horses | Codeforces | Codeforces Round #167 (Div. 2) & Codeforces Round #167 (Div. 1) | 7 |
| 185 | Little Girl and Problem on Trees | Codeforces | Codeforces Round #169 (Div. 2) | 7 |
| 186 | Coin Troubles | Codeforces | Codeforces Round #174 (Div. 1) & Codeforces Round #174 (Div. 2) | 7 |
| 187 | Splitting the Uniqueness | Codeforces | Codeforces Round #180 (Div. 1) & Codeforces Round #180 (Div. 2) | 7 |
| 188 | Empire Strikes Back | Codeforces | Codeforces Round #181 (Div. 2) | 7 |
| 189 | Minimum Modular | Codeforces | Codeforces Round #183 (Div. 1) & Codeforces Round #183 (Div. 2) | 7 |
| 190 | Axis Walking | Codeforces | Codeforces Round #191 (Div. 2) | 7 |
| 191 | Graph Reconstruction | Codeforces | Codeforces Round #192 (Div. 1) & Codeforces Round #192 (Div. 2) | 7 |
| 192 | Divisor Tree | Codeforces | Codeforces Round #196 (Div. 2) & Codeforces Round #196 (Div. 1) | 7 |
| 193 | Subset Sums | Codeforces | Codeforces Round #202 (Div. 1) & Codeforces Round #202 (Div. 2) | 7 |
| 194 | Wrong Floyd | Codeforces | Codeforces Round #203 (Div. 2) | 7 |
| 195 | Levko and Strings | Codeforces | Codeforces Round #210 (Div. 1) & Codeforces Round #210 (Div. 2) | 7 |
| 196 | Subway Innovation | Codeforces | Codeforces Round #218 (Div. 2) | 7 |
| 197 | Captains Mode | Codeforces | Codeforces Round #222 (Div. 1) & Codeforces Round #222 (Div. 2) | 7 |
| 198 | George and Cards | Codeforces | Codeforces Round #227 (Div. 2) | 7 |
| 199 | Inna and Binary Logic | Codeforces | Codeforces Round #234 (Div. 2) | 7 |
| 200 | Graph Cutting | Codeforces | Codeforces Round #238 (Div. 2) & Codeforces Round #238 (Div. 1) | 7 |
| 201 | Curious Array | Codeforces | Codeforces Round #239 (Div. 1) & Codeforces Round #239 (Div. 2) | 7 |
| 202 | President's Path | Codeforces | Codeforces Round #241 (Div. 2) | 7 |
| 203 | Sereja and Two Sequences | Codeforces | Codeforces Round #243 (Div. 1) & Codeforces Round #243 (Div. 2) | 7 |
| 204 | Guess the Tree | Codeforces | Codeforces Round #245 (Div. 1) & Codeforces Round #245 (Div. 2) | 7 |
| 205 | Devu and Birthday Celebration | Codeforces | Codeforces Round #251 (Div. 2) | 7 |
| 206 | Hack it! | Codeforces | Codeforces Round #268 (Div. 1) & Codeforces Round #268 (Div. 2) | 7 |
| 207 | Hiking | Codeforces | Codeforces Round #277.5 (Div. 2) | 7 |
| 208 | Darth Vader and Tree | Codeforces | Codeforces Round #291 (Div. 2) | 7 |
| 209 | Arthur and Questions | Codeforces | Codeforces Round #293 (Div. 2) | 7 |
| 210 | Data Center Drama | Codeforces | Codeforces Round #296 (Div. 2) & Codeforces Round #296 (Div. 1) | 7 |
| 211 | Tavas and Pashmaks | Codeforces | Codeforces Round #299 (Div. 2) & Codeforces Round #299 (Div. 1) | 7 |
| 212 | Remembering Strings | Codeforces | Codeforces Round #302 (Div. 1) & Codeforces Round #302 (Div. 2) | 7 |
| 213 | Ann and Half-Palindrome | Codeforces | Codeforces Round #311 (Div. 2) | 7 |
| 214 | President and Roads | Codeforces | Codeforces Round #Pi (Div. 2) | 7 |
| 215 | Bear and Drawing | Codeforces | Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 1) & Codeforces Round #318 [RussianCodeCup Thanks-Round] (Div. 2) | 7 |
| 216 | Alice, Bob, Oranges and Apples | Codeforces | Codeforces Round #325 (Div. 1) & Codeforces Round #325 (Div. 2) | 7 |
| 217 | Edo and Magnets | Codeforces | Codeforces Round #330 (Div. 1) & Codeforces Round #330 (Div. 2) | 7 |
| 218 | Kleofáš and the n-thlon | Codeforces | Codeforces Round #333 (Div. 1) & Codeforces Round #333 (Div. 2) | 7 |
| 219 | Freelancer's Dreams | Codeforces | Codeforces Round #335 (Div. 1) & Codeforces Round #335 (Div. 2) | 7 |
| 220 | Marbles | Codeforces | Codeforces Round #336 (Div. 1) & Codeforces Round #336 (Div. 2) | 7 |
| 221 | Hexagons | Codeforces | Codeforces Round #338 (Div. 2) | 7 |
| 222 | Necklace | Codeforces | Codeforces Round #339 (Div. 1) & Codeforces Round #339 (Div. 2) | 7 |
| 223 | Famil Door and Roads | Codeforces | Codeforces Round #343 (Div. 2) | 7 |
| 224 | Product Sum | Codeforces | Codeforces Round #344 (Div. 2) | 7 |
| 225 | Levels and Regions | Codeforces | VK Cup 2016 - Round 3 | 7 |
| 226 | The Last Fight Between Human and AI | Codeforces | Codeforces Round #354 (Div. 2) | 7 |
| 227 | Bear and Square Grid | Codeforces | Codeforces Round #356 (Div. 1) & Codeforces Round #356 (Div. 2) | 7 |
| 228 | LRU | Codeforces | Codeforces Round #363 (Div. 1) & Codeforces Round #363 (Div. 2) | 7 |
| 229 | Working routine | Codeforces | Codeforces Round #367 (Div. 2) | 7 |
| 230 | Garlands | Codeforces | Codeforces Round #368 (Div. 2) | 7 |
| 231 | Digit Tree | Codeforces | Codeforces Round #372 (Div. 1) & Codeforces Round #372 (Div. 2) | 7 |
| 232 | Funny Game | Codeforces | Codeforces Round #376 (Div. 2) | 7 |
| 233 | Alyona and towers | Codeforces | Codeforces Round #381 (Div. 1) & Codeforces Round #381 (Div. 2) | 7 |
| 234 | Hongcow Buys a Deck of Cards | Codeforces | Codeforces Round #385 (Div. 1) & Codeforces Round #385 (Div. 2) | 7 |
| 235 | Bash Plays with Functions | Codeforces | Codecraft-17 and Codeforces Round #391 (Div. 1 + Div. 2, combined) | 7 |
| 236 | Nikita and stack | Codeforces | 8VC Venture Cup 2017 - Final Round | 7 |
| 237 | Change-free | Codeforces | Codeforces Round #398 (Div. 2) | 7 |
| 238 | Anton and Permutation | Codeforces | Codeforces Round #404 (Div. 2) | 7 |
| 239 | Bear and Company | Codeforces | VK Cup 2017 - Round 1 | 7 |
| 240 | Till I Collapse | Codeforces | Codeforces Round #406 (Div. 1) & Codeforces Round #406 (Div. 2) | 7 |
| 241 | Sagheer and Apple Tree | Codeforces | Codeforces Round #417 (Div. 2) | 7 |
| 242 | Aquarium decoration | Codeforces | Playrix Codescapes Cup (Codeforces Round #413, rated, Div. 1 + Div. 2) | 7 |
| 243 | Prairie Partition | Codeforces | VK Cup 2017 - Round 3 | 7 |
| 244 | Vulnerable Kerbals | Codeforces | VK Cup 2017 - Round 2 | 7 |
| 245 | On the Bench | Codeforces | Codeforces Round #429 (Div. 1) & Codeforces Round #429 (Div. 2) | 7 |
| 246 | Points, Lines and Ready-made Titles | Codeforces | Technocup 2018 - Elimination Round 2 | 7 |
| 247 | The Untended Antiquity | Codeforces | Codeforces Round #439 (Div. 2) | 7 |
| 248 | Short Code | Codeforces | Codeforces Round #476 (Div. 2) [Thanks, Telegram!] | 7 |
| 249 | Army Creation | Codeforces | Educational Codeforces Round 22 | 7 |
| 250 | Defining Macros | Codeforces | Codeforces Beta Round #7 | 8 |
| 251 | Beads | Codeforces | Codeforces Beta Round #8 | 8 |
| 252 | Interestring graph and Apples | Codeforces | Codeforces Beta Round #9 (Div. 2 Only) | 8 |
| 253 | Greedy Change | Codeforces | Codeforces Beta Round #10 | 8 |
| 254 | Start of the session | Codeforces | Codeforces Beta Round #12 (Div 2 Only) | 8 |
| 255 | Palisection | Codeforces | Codeforces Beta Round #17 | 8 |
| 256 | Flag 2 | Codeforces | Codeforces Beta Round #18 (Div. 2 Only) | 8 |
| 257 | Scheme | Codeforces | Codeforces Beta Round #22 (Div. 2 Only) | 8 |
| 258 | Tree | Codeforces | Codeforces Beta Round #23 | 8 |
| 259 | Berland collider | Codeforces | Codeforces Beta Round #24 | 8 |
| 260 | Quarrel | Codeforces | Codeforces Beta Round #29 (Div. 2, Codeforces format) | 8 |
| 261 | Tricky and Clever Password | Codeforces | Codeforces Beta Round #30 (Codeforces format) | 8 |
| 262 | Collisions | Codeforces | Codeforces Beta Round #34 (Div. 2) | 8 |
| 263 | Parade | Codeforces | Codeforces Beta Round #35 (Div. 2) | 8 |
| 264 | Number Table | Codeforces | Codeforces Beta Round #39 | 8 |
| 265 | Common ancestor | Codeforces | Codeforces Beta Round #46 (Div. 2) | 8 |
| 266 | Dead Ends | Codeforces | Codeforces Beta Round #49 (Div. 2) | 8 |
| 267 | Very simple problem | Codeforces | Codeforces Beta Round #51 | 8 |
| 268 | Sweets Game | Codeforces | Codeforces Beta Round #59 (Div. 2) | 8 |
| 269 | Petya and Post | Codeforces | Codeforces Beta Round #61 (Div. 2) | 8 |
| 270 | Chip Play | Codeforces | Codeforces Beta Round #74 (Div. 1 Only) & Codeforces Beta Round #74 (Div. 2 Only) | 8 |
| 271 | Vectors | Codeforces | Codeforces Beta Round #79 (Div. 1 Only) & Codeforces Beta Round #79 (Div. 2 Only) | 8 |
| 272 | Space Rescuers | Codeforces | Codeforces Beta Round #82 (Div. 2) | 8 |
| 273 | Plumber | Codeforces | Codeforces Beta Round #87 (Div. 1 Only) & Codeforces Beta Round #87 (Div. 2 Only) | 8 |
| 274 | Brackets | Codeforces | Codeforces Beta Round #92 (Div. 1 Only) & Codeforces Beta Round #92 (Div. 2 Only) | 8 |
| 275 | E-reader Display | Codeforces | Codeforces Beta Round #93 (Div. 1 Only) & Codeforces Beta Round #93 (Div. 2 Only) | 8 |
| 276 | New Year Garland | Codeforces | Codeforces Round #100 | 8 |
| 277 | Clearing Up | Codeforces | Codeforces Round #101 (Div. 2) | 8 |
| 278 | Help Caretaker | Codeforces | Codeforces Round #102 (Div. 1) & Codeforces Round #102 (Div. 2) | 8 |
| 279 | Competition | Codeforces | Codeforces Round #103 (Div. 2) | 8 |
| 280 | Smart Cheater | Codeforces | Codeforces Round #107 (Div. 1) & Codeforces Round #107 (Div. 2) | 8 |
| 281 | Wizards and Numbers | Codeforces | Codeforces Round #114 (Div. 1) & Codeforces Round #114 (Div. 2) | 8 |
| 282 | Hamming Distance | Codeforces | Codeforces Round #122 (Div. 1) & Codeforces Round #122 (Div. 2) | 8 |
| 283 | Building Forest | Codeforces | Codeforces Round #123 (Div. 2) | 8 |
| 284 | Periodical Numbers | Codeforces | Codeforces Round #132 (Div. 2) | 8 |
| 285 | Martian Luck | Codeforces | Codeforces Round #133 (Div. 2) | 8 |
| 286 | Parking Lot | Codeforces | Codeforces Round #135 (Div. 2) | 8 |
| 287 | Unsolvable | Codeforces | Codeforces Round #139 (Div. 2) | 8 |
| 288 | Anniversary | Codeforces | Codeforces Round #140 (Div. 1) & Codeforces Round #140 (Div. 2) | 8 |
| 289 | Colorado Potato Beetle | Codeforces | Codeforces Round #150 (Div. 1) & Codeforces Round #150 (Div. 2) | 8 |
| 290 | Printer | Codeforces | Codeforces Round #154 (Div. 2) | 8 |
| 291 | More Queries to Array... | Codeforces | Codeforces Round #163 (Div. 2) | 8 |
| 292 | Three Horses | Codeforces | Codeforces Round #166 (Div. 2) | 8 |
| 293 | Game | Codeforces | Codeforces Round #170 (Div. 1) & Codeforces Round #170 (Div. 2) | 8 |
| 294 | Positions in Permutations | Codeforces | Codeforces Round #175 (Div. 2) | 8 |
| 295 | Shaass the Great | Codeforces | Codeforces Round #178 (Div. 2) | 8 |
| 296 | Yaroslav and Algorithm | Codeforces | Codeforces Round #182 (Div. 1) & Codeforces Round #182 (Div. 2) | 8 |
| 297 | Playing with String | Codeforces | Codeforces Round #184 (Div. 2) | 8 |
| 298 | Ilya and Two Numbers | Codeforces | Codeforces Round #186 (Div. 2) | 8 |
| 299 | Balance | Codeforces | Codeforces Round #188 (Div. 1) & Codeforces Round #188 (Div. 2) | 8 |
| 300 | Three Swaps | Codeforces | Codeforces Round #197 (Div. 2) | 8 |
| 301 | Jeff and Brackets | Codeforces | Codeforces Round #204 (Div. 1) & Codeforces Round #204 (Div. 2) | 8 |
| 302 | Antichain | Codeforces | Codeforces Round #205 (Div. 2) | 8 |
| 303 | Petya and Pipes | Codeforces | Codeforces Round #212 (Div. 2) | 8 |
| 304 | Beautiful Set | Codeforces | Codeforces Round #213 (Div. 1) & Codeforces Round #213 (Div. 2) | 8 |
| 305 | Dima and Magic Guitar | Codeforces | Codeforces Round #214 (Div. 2) | 8 |
| 306 | Volcanoes | Codeforces | Codeforces Round #225 (Div. 1) & Codeforces Round #225 (Div. 2) | 8 |
| 307 | Bear in the Field | Codeforces | Codeforces Round #226 (Div. 2) | 8 |
| 308 | Maze 1D | Codeforces | Codeforces Round #237 (Div. 2) | 8 |
| 309 | Square Tiling | Codeforces | Codeforces Round #246 (Div. 2) | 8 |
| 310 | The Child and Polygon | Codeforces | Codeforces Round #250 (Div. 2) & Codeforces Round #250 (Div. 1) | 8 |
| 311 | Alex and Complicated Task | Codeforces | Codeforces Round #267 (Div. 2) | 8 |
| 312 | Game with Strings | Codeforces | Codeforces Round #275 (Div. 1) & Codeforces Round #275 (Div. 2) | 8 |
| 313 | Strange Sorting | Codeforces | Codeforces Round #276 (Div. 1) & Codeforces Round #276 (Div. 2) | 8 |
| 314 | Vasya and Polynomial | Codeforces | Codeforces Round #281 (Div. 2) | 8 |
| 315 | Helping People | Codeforces | Codeforces Round #282 (Div. 1) & Codeforces Round #282 (Div. 2) | 8 |
| 316 | Misha and Palindrome Degree | Codeforces | Codeforces Round #285 (Div. 2) & Codeforces Round #285 (Div. 1) | 8 |
| 317 | Mike and Friends | Codeforces | Codeforces Round #305 (Div. 1) | 8 |
| 318 | New Language | Codeforces | Codeforces Round #315 (Div. 1) & Codeforces Round #315 (Div. 2) | 8 |
| 319 | CNF 2 | Codeforces | Codeforces Round #317 [AimFund Thanks-Round] (Div. 1) & Codeforces Round #317 [AimFund Thanks-Round] (Div. 2) | 8 |
| 320 | Superior Periodic Subarrays | Codeforces | Codeforces Round #323 (Div. 1) & Codeforces Round #323 (Div. 2) | 8 |
| 321 | Alphabet Permutations | Codeforces | Codeforces Round #337 (Div. 2) | 8 |
| 322 | Ultimate Weirdness of an Array | Codeforces | Codeforces Round #352 (Div. 1) & Codeforces Round #352 (Div. 2) | 8 |
| 323 | Vanya and Balloons | Codeforces | Codeforces Round #355 (Div. 2) | 8 |
| 324 | Alyona and Triangles | Codeforces | Codeforces Round #358 (Div. 2) | 8 |
| 325 | Mishka and Divisors | Codeforces | Codeforces Round #365 (Div. 2) | 8 |
| 326 | Memory and Casinos | Codeforces | Codeforces Round #370 (Div. 2) | 8 |
| 327 | Sleep in Class | Codeforces | Codeforces Round #378 (Div. 2) | 8 |
| 328 | Inversions After Shuffle | Codeforces | Codeforces Round #388 (Div. 2) | 8 |
| 329 | Timofey and remoduling | Codeforces | Codeforces Round #395 (Div. 1) & Codeforces Round #395 (Div. 2) | 8 |
| 330 | Exam Cheating | Codeforces | Codeforces Round #408 (Div. 2) | 8 |
| 331 | Vladik and Entertaining Flags | Codeforces | Codeforces Round #416 (Div. 2) | 8 |
| 332 | Find a car | Codeforces | Codeforces Round #415 (Div. 1) & Codeforces Round #415 (Div. 2) | 8 |
| 333 | Shortest Path Problem? | Codeforces | Educational Codeforces Round 27 | 8 |
| 334 | Mother of Dragons | Codeforces | Codeforces Round #428 (Div. 2) | 8 |
| 335 | The penguin's game | Codeforces | Codeforces Round #427 (Div. 2) | 8 |
| 336 | Liar | Codeforces | Codeforces Round #422 (Div. 2) | 8 |
| 337 | An unavoidable detour for home | Codeforces | Codeforces Round #418 (Div. 2) | 8 |
| 338 | Nastya and King-Shamans | Codeforces | Codeforces Round #489 (Div. 2) | 8 |
| 339 | Triangles | Codeforces | Codeforces Beta Round #15 | 9 |
| 340 | Multithreading | Codeforces | Codeforces Beta Round #26 (Codeforces format) | 9 |
| 341 | Hide-and-Seek | Codeforces | Codeforces Beta Round #32 (Div. 2, Codeforces format) | 9 |
| 342 | Two Paths | Codeforces | Codeforces Beta Round #36 | 9 |
| 343 | Trial for Chief | Codeforces | Codeforces Beta Round #37 | 9 |
| 344 | Race | Codeforces | Codeforces Beta Round #42 (Div. 2) | 9 |
| 345 | Cannon | Codeforces | Codeforces Beta Round #44 (Div. 2) | 9 |
| 346 | Ivan the Fool VS Gorynych the Dragon | Codeforces | School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round #45 (ACM-ICPC Rules) | 9 |
| 347 | Square Equation Roots | Codeforces | Codeforces Beta Round #47 | 9 |
| 348 | Pentagon | Codeforces | Codeforces Beta Round #48 | 9 |
| 349 | Mushroom Gnomes | Codeforces | Codeforces Beta Round #56 | 9 |
| 350 | Information Reform | Codeforces | Codeforces Beta Round #64 | 9 |
| 351 | Nuclear Fusion | Codeforces | Codeforces Beta Round #65 (Div. 2) | 9 |
| 352 | Morrowindows | Codeforces | Codeforces Beta Round #66 | 9 |
| 353 | Ship's Shortest Path | Codeforces | Codeforces Beta Round #67 (Div. 2) | 9 |
| 354 | Evacuation | Codeforces | Codeforces Beta Round #70 (Div. 2) | 9 |
| 355 | Track | Codeforces | Codeforces Beta Round #72 (Div. 1 Only) & Codeforces Beta Round #72 (Div. 2 Only) | 9 |
| 356 | Azembler | Codeforces | Codeforces Beta Round #76 (Div. 1 Only) & Codeforces Beta Round #76 (Div. 2 Only) | 9 |
| 357 | Horse Races | Codeforces | Codeforces Beta Round #77 (Div. 1 Only) & Codeforces Beta Round #77 (Div. 2 Only) | 9 |
| 358 | Help Greg the Dwarf | Codeforces | Codeforces Beta Round #78 (Div. 1 Only) & Codeforces Beta Round #78 (Div. 2 Only) | 9 |
| 359 | Arrangement | Codeforces | Codeforces Beta Round #83 (Div. 1 Only) & Codeforces Beta Round #83 (Div. 2 Only) | 9 |
| 360 | Garden | Codeforces | Codeforces Round #108 (Div. 2) | 9 |
| 361 | Buses and People | Codeforces | Codeforces Round #111 (Div. 2) | 9 |
| 362 | Power Defence | Codeforces | Codeforces Round #115 | 9 |
| 363 | Delivering Carcinogen | Codeforces | Codeforces Round #125 (Div. 1) & Codeforces Round #125 (Div. 2) | 9 |
| 364 | Tractor College | Codeforces | Codeforces Round #126 (Div. 2) | 9 |
| 365 | Transportation | Codeforces | Codeforces Round #128 (Div. 2) | 9 |
| 366 | Formurosa | Codeforces | Codeforces Round #134 (Div. 1) & Codeforces Round #134 (Div. 2) | 9 |
| 367 | Piglet's Birthday | Codeforces | Codeforces Round #152 (Div. 2) & Codeforces Round #152 (Div. 1) | 9 |
| 368 | Dormitory | Codeforces | Codeforces Round #155 (Div. 2) | 9 |
| 369 | Dividing Kingdom | Codeforces | Codeforces Round #158 (Div. 2) | 9 |
| 370 | Greedy Elevator | Codeforces | Codeforces Round #159 (Div. 2) | 9 |
| 371 | Rhombus | Codeforces | Codeforces Round #161 (Div. 2) | 9 |
| 372 | The Last Hole! | Codeforces | Codeforces Round #168 (Div. 1) & Codeforces Round #168 (Div. 2) | 9 |
| 373 | Fetch the Treasure | Codeforces | Codeforces Round #185 (Div. 1) & Codeforces Round #185 (Div. 2) | 9 |
| 374 | Binary Key | Codeforces | Codeforces Round #193 (Div. 2) | 9 |
| 375 | Lucky Tickets | Codeforces | Codeforces Round #194 (Div. 1) & Codeforces Round #194 (Div. 2) | 9 |
| 376 | Dima and Kicks | Codeforces | Codeforces Round #208 (Div. 2) | 9 |
| 377 | Neatness | Codeforces | Codeforces Round #209 (Div. 2) | 9 |
| 378 | Circling Round Treasures | Codeforces | Codeforces Round #221 (Div. 1) & Codeforces Round #221 (Div. 2) | 9 |
| 379 | Ksenia and Combinatorics | Codeforces | Codeforces Round #224 (Div. 2) | 9 |
| 380 | Inna and Large Sweet Matrix | Codeforces | Codeforces Round #229 (Div. 2) | 9 |
| 381 | Yet Another Number Sequence | Codeforces | Codeforces Round #230 (Div. 1) & Codeforces Round #230 (Div. 2) | 9 |
| 382 | Tree and Array | Codeforces | Codeforces Round #233 (Div. 1) & Codeforces Round #233 (Div. 2) | 9 |
| 383 | Chemistry Experiment | Codeforces | Codeforces Round #247 (Div. 2) | 9 |
| 384 | Tachibana Kanade's Tofu | Codeforces | Codeforces Round #248 (Div. 2) & Codeforces Round #248 (Div. 1) | 9 |
| 385 | Special Graph | Codeforces | Codeforces Round #249 (Div. 2) | 9 |
| 386 | Valera and Number | Codeforces | Codeforces Round #252 (Div. 2) | 9 |
| 387 | Roland and Rose | Codeforces | Codeforces Round #262 (Div. 2) | 9 |
| 388 | Mr. Kitayuta vs. Bamboos | Codeforces | Codeforces Round #286 (Div. 2) & Codeforces Round #286 (Div. 1) | 9 |
| 389 | Berland Local Positioning System | Codeforces | Codeforces Round #298 (Div. 2) | 9 |
| 390 | Strange Calculation and Cats | Codeforces | Codeforces Round #329 (Div. 2) | 9 |
| 391 | Wilbur and Strings | Codeforces | Codeforces Round #331 (Div. 2) | 9 |
| 392 | Sandy and Nuts | Codeforces | Codeforces Round #332 (Div. 2) | 9 |
| 393 | Runaway to a Shadow | Codeforces | Codeforces Round #357 (Div. 2) | 9 |
| 394 | Optimal Point | Codeforces | Codeforces Round #359 (Div. 1) & Codeforces Round #359 (Div. 2) | 9 |
| 395 | Black Widow | Codeforces | Codeforces Round #366 (Div. 1) & Codeforces Round #366 (Div. 2) | 9 |
| 396 | Road to Home | Codeforces | Codeforces Round #374 (Div. 2) | 9 |
| 397 | Dasha and cyclic table | Codeforces | Codeforces Round #390 (Div. 2) | 9 |
| 398 | Broken Tree | Codeforces | Codeforces Round #392 (Div. 2) | 9 |
| 399 | Choosing Carrot | Codeforces | Tinkoff Challenge - Final Round (Codeforces Round #414, rated, Div. 1 + Div. 2) | 9 |
| 400 | Mike and code of a permutation | Codeforces | Codeforces Round #410 (Div. 2) | 9 |
| 401 | Ever-Hungry Krakozyabra | Codeforces | Codeforces Round #426 (Div. 1) & Codeforces Round #426 (Div. 2) | 9 |
| 402 | Vasya and Shifts | Codeforces | Codeforces Round #425 (Div. 2) | 9 |
| 403 | Awards For Contestants | Codeforces | Educational Codeforces Round 30 | 9 |
| 404 | Policeman and a Tree | Codeforces | Codeforces Round #438 by Sberbank and Barcelona Bootcamp (Div. 1 + Div. 2 combined) | 9 |
| 405 | Forward, march! | Codeforces | Codeforces Beta Round #11 | 10 |
| 406 | DravDe saves the world | Codeforces | Codeforces Beta Round #28 (Codeforces format) | 10 |
| 407 | Helper | Codeforces | Codeforces Beta Round #33 (Codeforces format) | 10 |
| 408 | Baldman and the military | Codeforces | Codeforces Beta Round #41 | 10 |
| 409 | Vacuum ?leaner | Codeforces | Codeforces Beta Round #50 | 10 |
| 410 | Chess | Codeforces | Codeforces Beta Round #53 | 10 |
| 411 | Expression | Codeforces | Codeforces Beta Round #54 (Div. 2) | 10 |
| 412 | World Evil | Codeforces | Codeforces Beta Round #58 | 10 |
| 413 | Harry Potter and Moving Staircases | Codeforces | Codeforces Beta Round #60 | 10 |
| 414 | Contact | Codeforces | Codeforces Beta Round #62 | 10 |
| 415 | Shift It! | Codeforces | Codeforces Beta Round #68 | 10 |
| 416 | Security System | Codeforces | Codeforces Beta Round #71 | 10 |
| 417 | Lift and Throw | Codeforces | Codeforces Beta Round #81 | 10 |
| 418 | Lucky Interval | Codeforces | Codeforces Beta Round #84 (Div. 1 Only) | 10 |
| 419 | Tree or not Tree | Codeforces | Codeforces Beta Round #88 | 10 |
| 420 | Alternative Reality | Codeforces | Codeforces Beta Round #90 | 10 |
| 421 | Clever Fat Rat | Codeforces | Codeforces Round #118 (Div. 1) & Codeforces Round #118 (Div. 2) | 10 |
| 422 | Doe Graphs | Codeforces | Codeforces Round #144 (Div. 1) & Codeforces Round #144 (Div. 2) | 10 |
| 423 | Vasily the Bear and Painting Square | Codeforces | Codeforces Round #195 (Div. 2) | 10 |
| 424 | Two Circles | Codeforces | Codeforces Round #211 (Div. 2) | 10 |
| 425 | Summer Reading | Codeforces | Codeforces Round #217 (Div. 2) | 10 |
| 426 | Inna and Babies | Codeforces | Codeforces Round #220 (Div. 2) | 10 |
| 427 | Lightbulb for Minister | Codeforces | Codeforces Round #231 (Div. 2) | 10 |
| 428 | Olympic Games | Codeforces | Codeforces Round #235 (Div. 2) | 10 |
| 429 | Colored Jenga | Codeforces | Codeforces Round #242 (Div. 2) | 10 |
| 430 | DZY Loves Bridges | Codeforces | Codeforces Round #255 (Div. 1) | 10 |
| 431 | MUH and Lots and Lots of Segments | Codeforces | Codeforces Round #269 (Div. 2) | 10 |
| 432 | Design Tutorial: Learn from a Game | Codeforces | Codeforces Round #270 | 10 |
| 433 | Wavy numbers | Codeforces | Codeforces Round #273 (Div. 2) | 10 |
| 434 | Kojiro and Furrari | Codeforces | Codeforces Round #322 (Div. 2) | 10 |
| 435 | BCPC | Codeforces | Codeforces Round #328 (Div. 2) | 10 |
| 436 | Frog Fights | Codeforces | Codeforces Round #342 (Div. 2) | 10 |
| 437 | To Hack or not to Hack | Codeforces | CROC 2016 - Final Round [Private, For Onsite Finalists Only] | 10 |
| 438 | Chain Reaction | Codeforces | Codeforces Round #349 (Div. 1) & Codeforces Round #349 (Div. 2) | 10 |
| 439 | Mister B and Beacons on Field | Codeforces | Codeforces Round #421 (Div. 1) & Codeforces Round #421 (Div. 2) | 10 |