摘要： #include <iostream>#include <vector>using namespace std;int main() { int n, m, k, nv, a, b, num; scanf("%d%d", &n, &m); vector<int> v[n]; for (int i = 阅读全文

摘要： #include<iostream>#include<string>#include<algorithm>using namespace std;string rev(string s){ reverse(s.begin(), s.end()); return s;}string add(strin 阅读全文