摘要：Moscow Pre-Finals Workshop 2020 - Legilimens+Coffee Chicken Contest A. Everyone Loves Playing Games 题意 Alice和Bob玩游戏，两人分别有$n$对数和$m$对数$(x_i,y_i)$ 初始分数$X 阅读全文

摘要：[模板] 线性基 const int M = 61; ll a[M + 1], tmp[M + 1]; bool flag; //判断0 void ins(ll x) { for (int i = M; i >= 0; i--) if (x & (1ll << i)) if (!a[i]) { a[ 阅读全文