这些年打过的比赛codeforces
[codeforces 1285A] Mezo Playing Zoma 字符串
[codeforces 1285B] Just Eat It! 最大连续子段和
[codeforces 1285C] Fadi and LCM 最大公约数+约数
[codeforces 1285D] Dr. Evil Underscores 不定长数组+分治算法+位运算
[codeforces 1287A] Angry Students 字符串
[codeforces 1287B] Hyperset 字符串+排序+二分
[codeforces 1287C] Garland 动归dp
[codeforces 1284A] New Year and Naming 字符串+模运算
[codeforces 1284B] New Year and Ascent Sequence 容斥原理+桶排序+前缀和+滚动数组
[codeforces 1284C] New Year and Permutation 组合数学
[codeforces 1269A] Equation 模拟
[codeforces 1269B] Modulo Equality 模拟
[codeforces 1269C] Long Beautiful Integer 字符串处理(类高精度加)
[codeforces 1269D] Domino for Young 棋盘的完美覆盖
[codeforces 1269E] K Integers 逆序对+平移+树状数组+二分
[codeforces 1271A] Suits 模拟
[codeforces 1271B] Blocks 模拟
[codeforces 1271C] Shawarma Tent 模拟(曼哈顿距离)
[codeforces 1271D] Portals 反悔贪心算法
[codeforces 1271E] Common Number 打表+找规律
[codeforces 1281A] Suffix Three 字符串+模拟
[codeforces 1277A] Happy Birthday, Polycarp! 模拟
[codeforces 1277B] Make Them Odd 模拟
