| 4 | 4 C | Registration System | [Question](https://codeforces.com/problemset/problem/4/C) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/4%20C%20-%20Registration%20System)
| 5 | 9 A | Die Roll | [Question](https://codeforces.com/problemset/problem/9/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/9%20A%20-%20Die%20Roll)
| 7 | 17 A | Noldbach problem | [Question](https://codeforces.com/problemset/problem/17/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/17%20A%20-%20Noldbach%20problem)
| 8 | 22 A | Second Order Statistics | [Question](https://codeforces.com/problemset/problem/22/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/22%20A%20-%20Second%20Order%20Statistics)
| 14 | 59 A | Word | [Question](https://codeforces.com/problemset/problem/59/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/59%20A%20-%20Word)
| 15 | 71 A | Way Too Long Words | [Question](https://codeforces.com/problemset/problem/71/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/71%20A%20-%20Way%20Too%20Long%20Words)
| 20 | 118 B | Present from Lena | [Question](https://codeforces.com/problemset/problem/118/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/118%20B%20-%20Present%20from%20Lena)
| 26 | 144 A | Arrival of the General | [Question](https://codeforces.com/problemset/problem/144/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/144%20A%20-%20Arrival%20of%20the%20General)
| 36 | 231 A | Team | [Question](https://codeforces.com/problemset/problem/231/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/231%20A%20-%20Team)
| 37 | 236 A | Boy Or Girl | [Question](https://codeforces.com/problemset/problem/236/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/236%20A%20-%20Boy%20Or%20Girl)
| 39 | 266 A | Stones on the Table | [Question](https://codeforces.com/problemset/problem/266/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/266%20A%20-%20Stones%20on%20the%20Table)
| 40 | 266 B | Queue at the School | [Question](https://codeforces.com/problemset/problem/266/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/266%20B%20-%20Queue%20at%20the%20School)
| 41 | 268 A | Games | [Question](https://codeforces.com/problemset/problem/268/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/268%20A%20-%20Games)
| 42 | 271 A | Beautiful Year | [Question](https://codeforces.com/problemset/problem/271/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/271%20A%20-%20Beautiful%20Year)
| 43 | 281 A | Word Capitalization | [Question](https://codeforces.com/problemset/problem/281/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/281%20A%20-%20Word%20Capitalization)
| 45 | 313 A | Ilya and Bank Account | [Question](https://codeforces.com/problemset/problem/313/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/313%20A%20-%20Ilya%20and%20Bank%20Account)
| 46 | 318 A | Even Odds | [Question](https://codeforces.com/problemset/problem/318/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/318%20A%20-%20Even%20Odds)
| 59 | 492 A | Vanya and Cubes | [Question](https://codeforces.com/problemset/problem/492/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/492%20A%20-%20Vanya%20and%20Cubes)
| 60 | 492 B | Vanya and Lanterns | [Question](https://codeforces.com/problemset/problem/492/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/492%20B%20-%20Vanya%20and%20Lanterns)
| 61 | 510 A | Fox And Snake | [Question](https://codeforces.com/problemset/problem/510/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/510%20A%20-%20Fox%20And%20Snake)
| 62 | 514 A | Chewbaсca and Number | [Question](https://codeforces.com/problemset/problem/514/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/514%20A%20-%20Chewbaсca%20and%20Number)
| 63 | 525 A | Vitaliy and Pie | [Question](https://codeforces.com/problemset/problem/525/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/525%20A%20-%20Vitaliy%20and%20Pie)
| 64 | 546 A | Soldier and Bananas | [Question](https://codeforces.com/problemset/problem/546/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/546%20A%20-%20Soldier%20and%20Bananas)
| 65 | 584 A | Olesya and Rodion | [Question](https://codeforces.com/problemset/problem/584/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/584%20A%20-%20Olesya%20and%20Rodion)
| 66 | 599 A | Patrick and Shopping | [Question](https://codeforces.com/problemset/problem/599/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/599%20A%20-%20Patrick%20and%20Shopping)
| 72 | 734 A | Anton and Danik | [Question](https://codeforces.com/problemset/problem/734/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/734%20A%20-%20Anton%20and%20Danik)
| 73 | 742 A | Arpas hard exam and Mehrdads naive cheat | [Question](https://codeforces.com/problemset/problem/742/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/742%20A%20-%20Arpas%20hard%20exam%20and%20Mehrdads%20naive%20cheat)
| 74 | 791 A | Bear And Big Brother | [Question](https://codeforces.com/problemset/problem/791/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/791%20A%20-%20Bear%20And%20Big%20Brother)
| 79 | 1076 C | Meme Problem | [Question](https://codeforces.com/problemset/problem/1076/C) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1076%20C%20-%20Meme%20Problem)
| 80 | 1088 A | Ehab and another construction problem | [Question](https://codeforces.com/problemset/problem/1088/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1088%20A%20-%20Ehab%20and%20another%20construction%20problem)
| 81 | 1118 B | Tanya and Candies | [Question](https://codeforces.com/problemset/problem/1118/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1118%20B%20-%20Tanya%20and%20Candies)
| 82 | 1144 C | Two Shuffled Sequences | [Question](https://codeforces.com/problemset/problem/1144/C) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1144%20C%20-%20Two%20Shuffled%20Sequences)
| 83 | 1196 A | Three Piles of Candies | [Question](https://codeforces.com/problemset/problem/1196/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1196%20A%20-%20Three%20Piles%20of%20Candies)
| 84 | 1295 A | Display The Number | [Question](https://codeforces.com/problemset/problem/1295/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1295%20A%20-%20Display%20The%20Number)
| 85 | 1296 A | Array with Odd Sum | [Question](https://codeforces.com/problemset/problem/1296/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1296%20A%20-%20Array%20with%20Odd%20Sum)
| 86 | 1311 A | Add Odd or Subtract Even | [Question](https://codeforces.com/problemset/problem/1311/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1311%20A%20-%20Add%20Odd%20or%20Subtract%20Even)
| 87 | 1328 A | Divisibility Problem | [Question](https://codeforces.com/problemset/problem/1328/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1328%20A%20-%20Divisibility%20Problem)
| 88 | 1341 A | Nastya and Rice | [Question](https://codeforces.com/problemset/problem/1341/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1341%20A%20-%20Nastya%20and%20Rice)
| 90 | 1352 C | K-th Not Divisible by n | [Question](https://codeforces.com/problemset/problem/1352/C) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1352%20C%20-%20K-th%20Not%20Divisible%20by%20n)
| 99 | 1582 B | Luntik and Subsequences | [Question](https://codeforces.com/problemset/problem/1582/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1582%20B%20-%20Luntik%20and%20Subsequences)
| 100 | 1624 B | Make AP | [Question](https://codeforces.com/problemset/problem/1624/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1624%20B%20-%20Make%20AP)
| 102 | 1675 B | Make It Increasing | [Question](https://codeforces.com/problemset/problem/1675/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1675%20B%20-%20Make%20It%20Increasing)
| 115 | 1748 A | The Ultimate Square | [Question](https://codeforces.com/problemset/problem/1748/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1748%20A%20-%20The%20Ultimate%20Square)
| 116 | 1758 B | XOR = Average | [Question](https://codeforces.com/problemset/problem/1758/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1758%20B%20-%20XOR%20=%20Average)
| 117 | 1760 A | Medium Number | [Question](https://codeforces.com/problemset/problem/1760/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1760%20A%20-%20Medium%20Number)
| 118 | 1761 A | Two Permutations | [Question](https://codeforces.com/problemset/problem/1761/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1761%20A%20-%20Two%20Permutations)
| 120 | 1773 F | Football | [Question](https://codeforces.com/problemset/problem/1773/F) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1773%20F%20-%20Football)
| 121 | 1777 A | Everybody Likes Good Arrays! | [Question](https://codeforces.com/problemset/problem/1777/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1777%20A%20-%20Everybody%20Likes%20Good%20Arrays!)
| 122 | 1783 A | Make it Beautiful | [Question](https://codeforces.com/problemset/problem/1783/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1783%20A%20-%20Make%20it%20Beautiful)
| 123 | 1788 A | One and Two | [Question](https://codeforces.com/problemset/problem/1788/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1788%20A%20-%20One%20and%20Two)
| 124 | 1789 A | Serval and Mocha's Array | [Question](https://codeforces.com/problemset/problem/1789/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1789%20A%20-%20Serval%20and%20Mocha's%20Array)
| 125 | 1791 B | Following Directions | [Question](https://codeforces.com/problemset/problem/1791/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1791%20B%20-%20Following%20Directions)
| 126 | 1791 C | Prepend and Append | [Question](https://codeforces.com/problemset/problem/1791/C) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1791%20C%20-%20Prepend%20and%20Append)
| 128 | 1794 B | Not Dividing | [Question](https://codeforces.com/problemset/problem/1794/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1794%20B%20-%20Not%20Dividing)
| 129 | 1795 B | Ideal Point | [Question](https://codeforces.com/problemset/problem/1795/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1795%20B%20-%20Ideal%20Point)
| 130 | 1800 A | Is It a Cat | [Question](https://codeforces.com/problemset/problem/1800/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1800%20A%20-%20Is%20It%20a%20Cat)
| 131 | 1805 A | We Need the Zero | [Question](https://codeforces.com/problemset/problem/1805/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1805%20A%20-%20We%20Need%20the%20Zero)
| 141 | 1829 A | Love Story | [Question](https://codeforces.com/problemset/problem/1829/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1829%20A%20-%20Love%20Story)
| 143 | 1829 C | Mr. Perfectly Fine | [Question](https://codeforces.com/problemset/problem/1829/C) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1829%20C%20-%20Mr.%20Perfectly%20Fine)
| 147 | 1832 B | Maximum Sum | [Question](https://codeforces.com/problemset/problem/1832/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1832%20B%20-%20Maximum%20Sum)
| 149 | 1833 B | Restore the Weather | [Question](https://codeforces.com/problemset/problem/1833/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1833%20B%20-%20Restore%20the%20Weather)
| 150 | 1833 C | Vlad Building Beautiful Array | [Question](https://codeforces.com/problemset/problem/1833/C) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1833%20C%20-%20Vlad%20Building%20Beautiful%20Array)
| 151 | 1834 A | Unit Array | [Question](https://codeforces.com/problemset/problem/1834/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1834%20A%20-%20Unit%20Array)
| 152 | 1837 A | Grasshopper on a Line | [Question](https://codeforces.com/problemset/problem/1837/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1837%20A%20-%20Grasshopper%20on%20a%20Line)
| 154 | 1841 B | Keep it Beautiful | [Question](https://codeforces.com/problemset/problem/1841/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1841%20B%20-%20Keep%20it%20Beautiful)
| 155 | 1843 A | Sasha and Array Coloring | [Question](https://codeforces.com/problemset/problem/1843/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1843%20A%20-%20Sasha%20and%20Array%20Coloring)
| 156 | 1843 B | Long Long | [Question](https://codeforces.com/problemset/problem/1843/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1843%20B%20-%20Long%20Long)
| 157 | 1844 A | Subtraction Game | [Question](https://codeforces.com/problemset/problem/1844/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1844%20A%20-%20Subtraction%20Game)
| 159 | 1846 A | Rudolph and Cut the Rope | [Question](https://codeforces.com/problemset/problem/1846/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1846%20A%20-%20Rudolph%20and%20Cut%20the%20Rope)
| 160 | 1846 B | Rudolph and Tic-Tac-Toe | [Question](https://codeforces.com/problemset/problem/1846/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1846%20B%20-%20Rudolph%20and%20Tic-Tac-Toe)
| 161 | 1846 C | Rudolf and the Another Competition | [Question](https://codeforces.com/problemset/problem/1846/C) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1846%20C%20-%20Rudolf%20and%20the%20Another%20Competition)
| 162 | 1848 A | Vika and Her Friends | [Question](https://codeforces.com/problemset/problem/1848/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1848%20A%20-%20Vika%20and%20Her%20Friends)
| 165 | 1850 A | To My Critics | [Question](https://codeforces.com/problemset/problem/1850/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1850%20A%20-%20To%20My%20Critics)
| 166 | 1850 B | Ten Words of Wisdom | [Question](https://codeforces.com/problemset/problem/1850/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1850%20B%20-%20Ten%20Words%20of%20Wisdom)
| 167 | 1850 C | Word on the Paper | [Question](https://codeforces.com/problemset/problem/1850/C) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1850%20C%20-%20Word%20on%20the%20Paper)
| 180 | 1859 A | United We Stand | [Question](https://codeforces.com/problemset/problem/1859/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1859%20A%20-%20United%20We%20Stand)
| 181 | 1860 A | Not a Substring | [Question](https://codeforces.com/problemset/problem/1860/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1860%20A%20-%20Not%20a%20Substring)
| 182 | 1862 A | Gift Carpet | [Question](https://codeforces.com/problemset/problem/1862/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1862%20A%20-%20Gift%20Carpet)
| 183 | 1862 B | Sequence Game | [Question](https://codeforces.com/problemset/problem/1862/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1862%20B%20-%20Sequence%20Game)
| 187 | 1869 A | Make It Zero | [Question](https://codeforces.com/problemset/problem/1869/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1869%20A%20-%20Make%20It%20Zero)
| 189 | 1872 A | Two Vessels | [Question](https://codeforces.com/problemset/problem/1872/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1872%20A%20-%20Two%20Vessels)
| 190 | 1872 B | The Corridor or There and Back Again | [Question](https://codeforces.com/problemset/problem/1872/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1872%20B%20-%20The%20Corridor%20or%20There%20and%20Back%20Again)
| 196 | 1875 A | Jellyfish and Undertale | [Question](https://codeforces.com/problemset/problem/1875/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1875%20A%20-%20Jellyfish%20and%20Undertale)
| 197 | 1877 A | Goals of Victory | [Question](https://codeforces.com/problemset/problem/1877/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1877%20A%20-%20Goals%20of%20Victory)
| 198 | 1878 A | How Much Does Daytona Cost | [Question](https://codeforces.com/problemset/problem/1878/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1878%20A%20-%20How%20Much%20Does%20Daytona%20Cost)
| 199 | 1878 B | Aleksa and Stack | [Question](https://codeforces.com/problemset/problem/1878/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1878%20B%20-%20Aleksa%20and%20Stack)
| 200 | 1878 C | Vasilije in Cacak | [Question](https://codeforces.com/problemset/problem/1878/C) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1878%20C%20-%20Vasilije%20in%20Cacak)
| 202 | 1879 B | Chips on the Board | [Question](https://codeforces.com/problemset/problem/1879/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1879%20B%20-%20Chips%20on%20the%20Board)
| 203 | 1881 A | Don't Try to Count | [Question](https://codeforces.com/problemset/problem/1881/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1881%20A%20-%20Don't%20Try%20to%20Count)
| 204 | 1881 B | Three Threadlets | [Question](https://codeforces.com/problemset/problem/1881/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1881%20B%20-%20Three%20Threadlets)
| 214 | 1896 B | AB Flipping | [Question](https://codeforces.com/problemset/problem/1896/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1896%20B%20-%20AB%20Flipping)
| 215 | 1898 A | Milica and String | [Question](https://codeforces.com/problemset/problem/1898/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1898%20A%20-%20Milica%20and%20String)
| 216 | 1899 A | Game with Integers | [Question](https://codeforces.com/problemset/problem/1899/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1899%20A%20-%20Game%20with%20Integers)
| 217 | 1900 A | Cover in Water | [Question](https://codeforces.com/problemset/problem/1900/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1900%20A%20-%20Cover%20in%20Water)
| 218 | 1900 B | Laura and Operations | [Question](https://codeforces.com/problemset/problem/1900/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1900%20B%20-%20Laura%20and%20Operations)
| 219 | 1901 A | Line Trip | [Question](https://codeforces.com/problemset/problem/1901/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1901%20A%20-%20Line%20Trip)
| 233 | 1913 B | Swap and Delete | [Question](https://codeforces.com/problemset/problem/1913/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1913%20B%20-%20Swap%20and%20Delete)
| 234 | 1913 C | Game with Multiset | [Question](https://codeforces.com/problemset/problem/1913/C) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1913%20C%20-%20Game%20with%20Multiset)
| 236 | 1914 B | Preparing for the Contest | [Question](https://codeforces.com/problemset/problem/1914/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1914%20B%20-%20Preparing%20for%20the%20Contest)
| 238 | 1914 D | Three Activities | [Question](https://codeforces.com/problemset/problem/1914/D) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1914%20D%20-%20Three%20Activities)
| 239 | 1914 E1 | Game with Marbles (Easy Version) | [Question](https://codeforces.com/problemset/problem/1914/E1) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1914%20E1%20-%20Game%20with%20Marbles%20(Easy%20Version))
| 240 | 1914 E2 | Game with Marbles (Hard Version) | [Question](https://codeforces.com/problemset/problem/1914/E2) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1914%20E2%20-%20Game%20with%20Marbles%20(Hard%20Version))
| 241 | 1915 A | Odd One Out | [Question](https://codeforces.com/problemset/problem/1915/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1915%20A%20-%20Odd%20One%20Out)
| 242 | 1915 B | Not Quite Latin Square | [Question](https://codeforces.com/problemset/problem/1915/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1915%20B%20-%20Not%20Quite%20Latin%20Square)
| 243 | 1915 C | Can I Square | [Question](https://codeforces.com/problemset/problem/1915/C) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1915%20C%20-%20Can%20I%20Square)
| 244 | 1915 D | Unnatural Language Processing | [Question](https://codeforces.com/problemset/problem/1915/D) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1915%20D%20-%20Unnatural%20Language%20Processing)
| 247 | 1916 B | Two Divisors | [Question](https://codeforces.com/problemset/problem/1916/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1916%20B%20-%20Two%20Divisors)
| 248 | 1916 C | Training Before the Olympiad | [Question](https://codeforces.com/problemset/problem/1916/C) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1916%20C%20-%20Training%20Before%20the%20Olympiad)
| 249 | 1916 D | Mathematical Problem | [Question](https://codeforces.com/problemset/problem/1916/D) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1916%20D%20-%20Mathematical%20Problem)
| 250 | 1917 A | Least Product | [Question](https://codeforces.com/problemset/problem/1917/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1917%20A%20-%20Least%20Product)
| 251 | 1917 B | Erase First or Second Letter | [Question](https://codeforces.com/problemset/problem/1917/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1917%20B%20-%20Erase%20First%20or%20Second%20Letter)
| 261 | 1921 D | Very Different Array | [Question](https://codeforces.com/problemset/problem/1921/D) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1921%20D%20-%20Very%20Different%20Array)
| 264 | 1927 A | Make it White | [Question](https://codeforces.com/problemset/problem/1927/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1927%20A%20-%20Make%20it%20White)
| 265 | 1927 B | Following the String | [Question](https://codeforces.com/problemset/problem/1927/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1927%20B%20-%20Following%20the%20String)
| 266 | 1927 C | Choose the Different Ones | [Question](https://codeforces.com/problemset/problem/1927/C) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1927%20C%20-%20Choose%20the%20Different%20Ones)
| 267 | 1927 D | Find the Different Ones! | [Question](https://codeforces.com/problemset/problem/1927/D) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1927%20D%20-%20Find%20the%20Different%20Ones!)
| 271 | 1929 A | Sasha and the Beautiful Array | [Question](https://codeforces.com/problemset/problem/1929/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1929%20A%20-%20Sasha%20and%20the%20Beautiful%20Array)
| 272 | 1929 B | Sasha and the Drawing | [Question](https://codeforces.com/problemset/problem/1929/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1929%20B%20-%20Sasha%20and%20the%20Drawing)
| 273 | 1930 A | Maximise The Score | [Question](https://codeforces.com/problemset/problem/1930/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1930%20A%20-%20Maximise%20The%20Score)
| 275 | 1931 A | Recovering a Small String | [Question](https://codeforces.com/problemset/problem/1931/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1931%20A%20-%20Recovering%20a%20Small%20String)
| 276 | 1931 B | Make Equal | [Question](https://codeforces.com/problemset/problem/1931/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1931%20B%20-%20Make%20Equal)
| 277 | 1931 C | Make Equal Again | [Question](https://codeforces.com/problemset/problem/1931/C) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1931%20C%20-%20Make%20Equal%20Again)
| 278 | 1933 A | Turtle Puzzle Rearrange and Negate | [Question](https://codeforces.com/problemset/problem/1933/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1933%20A%20-%20Turtle%20Puzzle%20Rearrange%20and%20Negate)
| 279 | 1933 B | Turtle Math Fast Three Task | [Question](https://codeforces.com/problemset/problem/1933/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1933%20B%20-%20Turtle%20Math%20Fast%20Three%20Task)
| 280 | 1933 C | Turtle Fingers Count the Values of k | [Question](https://codeforces.com/problemset/problem/1933/C) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1933%20C%20-%20Turtle%20Fingers%20Count%20the%20Values%20of%20k)
| 284 | 1955 C | Inhabitant of the Deep Sea | [Question](https://codeforces.com/problemset/problem/1955/C) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1955%20C%20-%20Inhabitant%20of%20the%20Deep%20Sea)
| 288 | 1956 A | Nene's Game | [Question](https://codeforces.com/problemset/problem/1956/A) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1956%20A%20-%20Nene's%20Game)
| 289 | 1956 B | Nene and the Card Game | [Question](https://codeforces.com/problemset/problem/1956/B) | [Solution](https://github.com/ShazidMashrafi/Codeforces-Solutions/tree/master/Codes/1956%20B%20-%20Nene%20and%20the%20Card%20Game)