• 2025-01-12AtCoder Regular Contest 066(缺d)
    \(AT\_arc066\_a\)https://www.luogu.com.cn/problem/AT_arc066_a题解:长度为\(n\)的队列,其\(A\)数组固定,直接判断题目给定\(A\)数组是否符合题意即可。若符合题意,答案为\(2^{\frac{n}{2}}\),否则答案为\(0\)。#include<bits/stdc++.h>usingnamespacestd;typedeflonglon