摘要：#include <iostream> #include <fstream>using namespace std;#ifndef ONLINE_JUDGEifstream fin("test.txt");#define cin fin#endifint bin[1010];int findx(int x){ int r = x; while(bin[r] != r) { r = bin[r]; } return r;}void merge(int x,int y){ bin[x] = y;}int main(){ int n,m,a,b... 阅读全文