三个点RE，想问一下为啥！谢谢

#include<iostream>
using namespace std;
int f[100001];
int n,m,p;
int find(int x){
    if(x==f[x])return x;
    else return f[x] = find(f[x]);
}
int main(){
    cin>>n>>m;
    for(int i=1;i<=n;i++)
    f[i]=i;
    int xx[10001],yy[10001];
    for(int i=1;i<=m;i++){
        cin>>p>>xx[i]>>yy[i];
        if(p==2){
                    if(find(xx[i])==find(yy[i])){
            cout<<"Y"<<endl;
        }
        else cout<<"N"<<endl;
        }
        else if(p==1){
            int fa=find(xx[i]);
            int fb=find(yy[i]);            
             f[fa]=fb;
        }            
    }
    return 0;
}