Submission #423663

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Source Code Expand

#include <iostream>
#include <algorithm>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <string>
#include <sstream>
#include <map>
#include <set>
#include <vector>
#include <cmath>

using namespace std;

int a[100000];


int root(int x){
    if(a[x]==x){
        return x;
    }else{
        return a[x]=root(a[x]);
    }
}
bool same(int x, int y){
    return root(x)==root(y);
}
void unite(int x, int y){
    x=root(x);
    y=root(y);
    if(x==y){
        return;
    }
    a[x]=y;
}

int main(int argc, const char * argv[])
{
    //std::ios::sync_with_stdio(false);
    //scanf("%s",S);
    //scanf("%d",&N);
    //getline(cin, target);
    //cin >> x >> y;
    //ここから
    
    int N,Q;
    cin >> N >> Q;
    
    for(int i=0;i<100000;i++){
        a[i]=i;
    }
    
    int P,A,B;
    
    for(int p=0;p<Q;p++){
        cin >> P >> A >> B;
        if(P==0){
            unite(A,B);
        }
        if(P==1){
            if(same(A,B)){
                cout << "Yes" << endl;
            }else{
                cout << "No" << endl;
            }
        }
    }
    
    
    
    
    //ここまで
    //cout << target << endl;改行含む
    //printf("%f\n",pow(2,ans.size()));
    
    return 0;
}

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