bennian:
博客地址:https://www.cnblogs.com/zhgyki/
bennian:
博客地址:https://www.cnblogs.com/zhgyki/
EOJ Monthly 2019.2 E. 中位数 (二分+dfs)
Educational Codeforces Round 60 (Rated for Div. 2) D. Magic Gems(矩阵快速幂)
hdu6351 Beautiful Now (全排列+循环节)
hdu6354 Everything Has Changed (圆的相交弧长)
hdu6341 Problem J. Let Sudoku Rotate (dfs)