Eriktse Runtime:
博客地址：https://www.cnblogs.com/eriktse/
XCPC真题：Little Tiger vs. Deep Monkey|Greatest Common Divisor|Array Merge XCPC真题：Bits Reverse | Empty Squares | Wall Painting ACM博弈论SG函数入门：博弈树SG函数的转移与子游戏的合并
XCPC真题：Little Tiger vs. Deep Monkey|Greatest Common Divisor|Array Merge
XCPC真题：Bits Reverse | Empty Squares | Wall Painting
ACM博弈论SG函数入门：博弈树SG函数的转移与子游戏的合并