洛谷P1551WA求助

请问哪错了？萌新求助

#include <iostream>
using namespace std;
int n, m;
int p[60005];
int find(int x){
	if (x!=p[x]) p[x]= find(p[x]);
	return p[x];
}
int main(){
	cin >> n >> m;
	for (int i=1; i<=n; ++i) p[i] = i;
	int a, b, f_a, f_b;
	while (m--){
		cin >> a >> b;
		f_a = find(a);
		f_b = find(b);
		if(f_a!=f_b)	p[f_a] = f_b;
	}
	int q;
	cin >> q;
	while (q--){
		cin >> a >> b;
		f_a = find(a);
		f_b = find(b);
		if (f_a==f_b) cout << "Yes";
		else	cout << "No";
	}
	return 0;
}

标签：std,洛谷,P1551WA,int,cin,求助,main,find
来源： https://blog.csdn.net/zxl2007123/article/details/121595956