摘要： #include <iostream>#include <cstring>#include <algorithm>#include <vector>#include <unordered_set>#pragma GCC optimize(2)#pragma GCC optimize(3)#defin 阅读全文

摘要： 1. #include <iostream>#include <cstring>#include <algorithm>#include <set> using namespace std; const int N = 1010; int t, n;int a[N], b[N];set<int> s 阅读全文