Extra problems for experienced users or users with Codeforces Rating >= 2200 (Extra). |
|
| ID | Problem Name | Online Judge | Difficulty Level |
|---|---|---|---|
| 1 | Bus to Udayland | Codeforces | 1 |
| 2 | LLPS | Codeforces | 1 |
| 3 | Playing with Dice | Codeforces | 1 |
| 4 | Taymyr is calling you | Codeforces | 1 |
| 5 | Summer Camp | Codeforces | 1 |
| 6 | Soldier and Bananas | Codeforces | 1 |
| 7 | Wizards' Duel | Codeforces | 1 |
| 8 | Opponents | Codeforces | 1 |
| 9 | Free Ice Cream | Codeforces | 1 |
| 10 | Drazil and Date | Codeforces | 2 |
| 11 | Arpa’s hard exam and Mehrdad’s naive cheat | Codeforces | 2 |
| 12 | Multiplication Table | Codeforces | 2 |
| 13 | Kefa and First Steps | Codeforces | 2 |
| 14 | Lecture | Codeforces | 2 |
| 15 | Nicholas and Permutation | Codeforces | 2 |
| 16 | Pasha and Stick | Codeforces | 2 |
| 17 | Different is Good | Codeforces | 2 |
| 18 | Uncowed Forces | Codeforces | 2 |
| 19 | Case of the Zeros and Ones | Codeforces | 2 |
| 20 | Saitama Destroys Hotel | Codeforces | 2 |
| 21 | Tavas and Nafas | Codeforces | 2 |
| 22 | Bear and Five Cards | Codeforces | 2 |
| 23 | Bear and Finding Criminals | Codeforces | 2 |
| 24 | Calculating Function | Codeforces | 2 |
| 25 | Lovely Palindromes | Codeforces | 2 |
| 26 | Joysticks | Codeforces | 2 |
| 27 | Timofey and cubes | Codeforces | 2 |
| 28 | Complicated GCD | Codeforces | 2 |
| 29 | Two Bases | Codeforces | 3 |
| 30 | Rebranding | Codeforces | 3 |
| 31 | Semifinals | Codeforces | 3 |
| 32 | Median Smoothing | Codeforces | 3 |
| 33 | Digital Counter | Codeforces | 3 |
| 34 | Tavas and SaDDas | Codeforces | 3 |
| 35 | Little Robber Girl's Zoo | Codeforces | 3 |
| 36 | Alternative Thinking | Codeforces | 3 |
| 37 | Misha and Changing Handles | Codeforces | 3 |
| 38 | Valuable Resources | Codeforces | 3 |
| 39 | Beautiful Paintings | Codeforces | 3 |
| 40 | World Tour | Codeforces | 4 |
| 41 | Arpa’s obvious problem and Mehrdad’s terrible solution | Codeforces | 4 |
| 42 | Berzerk | Codeforces | 4 |
| 43 | Tennis Championship | Codeforces | 4 |
| 44 | Watering Flowers | Codeforces | 4 |
| 45 | Approximating a Constant Range | Codeforces | 4 |
| 46 | OR in Matrix | Codeforces | 4 |
| 47 | Game of Credit Cards | Codeforces | 4 |
| 48 | Day at the Beach | Codeforces | 4 |
| 49 | Report | Codeforces | 4 |
| 50 | Guest From the Past | Codeforces | 4 |
| 51 | Modular Equations | Codeforces | 4 |
| 52 | Tavas and Karafs | Codeforces | 4 |
| 53 | Hamming Distance Sum | Codeforces | 4 |
| 54 | Misha and Permutations Summation | Codeforces | 4 |
| 55 | Mike and Fun | Codeforces | 4 |
| 56 | Harmony Analysis | Codeforces | 4 |
| 57 | Vasya and Wrestling | Codeforces | 4 |
| 58 | Alyona and a tree | Codeforces | 4 |
| 59 | More Cowbell | Codeforces | 4 |
| 60 | Logo Turtle | Codeforces | 4 |
| 61 | Moodular Arithmetic | Codeforces | 4 |
| 62 | Taxes | Codeforces | 4 |
| 63 | Recycling Bottles | Codeforces | 4 |
| 64 | Gena's Code | Codeforces | 4 |
| 65 | Image Preview | Codeforces | 4 |
| 66 | Symmetric and Transitive | Codeforces | 4 |
| 67 | Lipshitz Sequence | Codeforces | 4 |
| 68 | Chip 'n Dale Rescue Rangers | Codeforces | 4 |
| 69 | Candy Boxes | Codeforces | 5 |
| 70 | Legacy | Codeforces | 5 |
| 71 | Bamboo Partition | Codeforces | 5 |
| 72 | Running Track | Codeforces | 5 |
| 73 | Kleofáš and the n-thlon | Codeforces | 5 |
| 74 | Mushroom Gnomes - 2 | Codeforces | 5 |
| 75 | Hanoi Factory | Codeforces | 5 |
| 76 | Last Chance | Codeforces | 5 |
| 77 | Anton and Ira | Codeforces | 5 |
| 78 | Build String | Codeforces | 5 |
| 79 | Vladik and cards | Codeforces | 5 |
| 80 | Decoding Genome | Codeforces | 5 |
| 81 | Inna and Binary Logic | Codeforces | 5 |
| 82 | Happy Tree Party | Codeforces | 5 |
| 83 | Anton and Permutation | Codeforces | 5 |
| 84 | Little Elephant and LCM | Codeforces | 5 |
| 85 | Spongebob and Squares | Codeforces | 5 |
| 86 | Money Transfers | Codeforces | 5 |
| 87 | Strictly Positive Matrix | Codeforces | 5 |
| 88 | Minimization | Codeforces | 5 |
| 89 | Random Task | Codeforces | 5 |
| 90 | Let's Play Osu! | Codeforces | 5 |
| 91 | Palindromes | Codeforces | 5 |
| 92 | Messenger | Codeforces | 5 |
| 93 | Hongcow Buys a Deck of Cards | Codeforces | 5 |
| 94 | Love Triangles | Codeforces | 5 |
| 95 | Pluses everywhere | Codeforces | 5 |
| 96 | Paths and Trees | Codeforces | 5 |
| 97 | Lengthening Sticks | Codeforces | 5 |
| 98 | Sonya and Problem Wihtout a Legend | Codeforces | 5 |
| 99 | Till I Collapse | Codeforces | 5 |
| 100 | Cipher | Codeforces | 5 |
| 101 | Apple Tree | Codeforces | 5 |
| 102 | Flawed Flow | Codeforces | 5 |
| 103 | Complete The Graph | Codeforces | 5 |
| 104 | Superior Periodic Subarrays | Codeforces | 5 |
| 105 | Lieges of Legendre | Codeforces | 5 |
| 106 | Bear and Square Grid | Codeforces | 5 |
| 107 | Bear and Tower of Cubes | Codeforces | 5 |
| 108 | Invariance of Tree | Codeforces | 5 |
| 109 | Points on Plane | Codeforces | 5 |
| 110 | ZS and The Birthday Paradox | Codeforces | 6 |
| 111 | Bear in the Field | Codeforces | 6 |
| 112 | Famil Door and Roads | Codeforces | 6 |
| 113 | Break Up | Codeforces | 6 |
| 114 | Devu and Flowers | Codeforces | 6 |
| 115 | Alyona and towers | Codeforces | 6 |
| 116 | Find a car | Codeforces | 6 |
| 117 | Bear and Floodlight | Codeforces | 6 |
| 118 | Ostap and Tree | Codeforces | 6 |
| 119 | Strange Calculation and Cats | Codeforces | 6 |
| 120 | Change-free | Codeforces | 6 |
| 121 | Graph Cutting | Codeforces | 6 |
| 122 | Vanya and Balloons | Codeforces | 6 |
| 123 | Anya and Cubes | Codeforces | 6 |
| 124 | Game on Tree | Codeforces | 6 |
| 125 | Bear and Drawing | Codeforces | 6 |
| 126 | The Last Fight Between Human and AI | Codeforces | 6 |
| 127 | Trains and Statistic | Codeforces | 6 |
| 128 | Inversions After Shuffle | Codeforces | 6 |
| 129 | Marbles | Codeforces | 6 |
| 130 | Acyclic Organic Compounds | Codeforces | 6 |
| 131 | Peterson Polyglot | Codeforces | 6 |
| 132 | Power Tree | Codeforces | 6 |
| 133 | Codeword | Codeforces | 6 |
| 134 | Wilbur and Strings | Codeforces | 7 |
| 135 | Iahub and Xors | Codeforces | 7 |
| 136 | Sandy and Nuts | Codeforces | 7 |
| 137 | Dima and Figure | Codeforces | 7 |
| 138 | Maximum Waterfall | Codeforces | 7 |
| 139 | String | Codeforces | 7 |
| 140 | Animals and Puzzle | Codeforces | 7 |
| 141 | Splitting the Uniqueness | Codeforces | 7 |
| 142 | Levko and Strings | Codeforces | 7 |
| 143 | Max and Bike | Codeforces | 7 |
| 144 | Yaroslav and Points | Codeforces | 7 |
| 145 | Anniversary | Codeforces | 7 |
| 146 | Ultimate Weirdness of an Array | Codeforces | 7 |
| 147 | Sereja and Sets | Codeforces | 7 |
| 148 | Permutations | Codeforces | 7 |
| 149 | Curious Array | Codeforces | 7 |
| 150 | Little Elephant and Tree | Codeforces | 7 |
| 151 | Parquet Re-laying | Codeforces | 7 |
| 152 | Timofey and remoduling | Codeforces | 7 |
| 153 | Misha and Palindrome Degree | Codeforces | 7 |
| 154 | Kefa and Watch | Codeforces | 7 |
| 155 | Arpa’s overnight party and Mehrdad’s silent entering | Codeforces | 7 |
| 156 | Timofey and our friends animals | Codeforces | 7 |
| 157 | Digit Tree | Codeforces | 7 |
| 158 | Product Sum | Codeforces | 7 |
| 159 | Choosing Subtree is Fun | Codeforces | 8 |
| 160 | Cyclical Quest | Codeforces | 8 |
| 161 | Sereja and Intervals | Codeforces | 8 |
| 162 | Hamming Triples | Codeforces | 8 |
| 163 | Fox And Polygon | Codeforces | 8 |
| 164 | Black Widow | Codeforces | 8 |
| 165 | Maxim and Increasing Subsequence | Codeforces | 8 |
| 166 | Vasya and Polynomial | Codeforces | 8 |
| 167 | Gosha is hunting | Codeforces | 8 |
| 168 | Bear and Chase | Codeforces | 8 |
| 169 | Fetch the Treasure | Codeforces | 8 |
| 170 | Jeff and Removing Periods | Codeforces | 8 |
| 171 | Random Function and Tree | Codeforces | 8 |
| 172 | Timofey and a flat tree | Codeforces | 8 |
| 173 | World of Darkraft - 2 | Codeforces | 8 |
| 174 | Drazil and Morning Exercise | Codeforces | 8 |
| 175 | Boolean Function | Codeforces | 8 |
| 176 | Misha and XOR | Codeforces | 8 |
| 177 | Randomizer | Codeforces | 8 |
| 178 | Roads in Yusland | Codeforces | 8 |
| 179 | Arpa’s letter-marked tree and Mehrdad’s Dokhtar-kosh paths | Codeforces | 8 |
| 180 | New Language | Codeforces | 8 |
| 181 | Flights for Regular Customers | Codeforces | 8 |
| 182 | Cow Tennis Tournament | Codeforces | 9 |
| 183 | Fence | Codeforces | 9 |
| 184 | Maxim and Calculator | Codeforces | 9 |
| 185 | Bear and Bowling | Codeforces | 9 |
| 186 | Bear and Cavalry | Codeforces | 9 |
| 187 | Pastoral Oddities | Codeforces | 9 |
| 188 | k-Maximum Subsequence Sum | Codeforces | 9 |
| 189 | Little Pony and Elements of Harmony | Codeforces | 9 |
| 190 | Parking Lot | Codeforces | 9 |
| 191 | Quick Tortoise | Codeforces | 9 |
| 192 | Little Pony and Lord Tirek | Codeforces | 9 |
| 193 | Ladies' Shop | Codeforces | 9 |
| 194 | Clockwork Bomb | Codeforces | 9 |
| 195 | Campus | Codeforces | 9 |
| 196 | Points and Segments | Codeforces | 9 |
| 197 | Mirror Room | Codeforces | 10 |
| 198 | Listening to Music | Codeforces | 10 |
| 199 | Pumping Stations | Codeforces | 10 |
| 200 | k-d-sequence | Codeforces | 10 |