摘要:
# include <bits/stdc++.h> using namespace std; const int N = 2050; int n,m; int lowbit(int x) {return x & -x;} struct _2wBIT { int a[N][N]; void clear 阅读全文
摘要:
题目下载链接 T1 水题。 # include <bits/stdc++.h> using namespace std; const int N = 100005; int n,k; double gpt[N],a[N],b[N]; void FIO(void) { freopen("sort.in 阅读全文