제출 #862664

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
862664		HossamHero7	Kutije (COCI21_kutije)	C++14	70 / 70	121 ms	13476 KiB

Main

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define endl '\n'
struct dsu{
    int n;
    vector<int> par;
    dsu(int _n){
        n = _n;
        par.resize(n);
        iota(par.begin(),par.end(),0);
    }
    int getP(int node){
        if(par[node] == node) return node;
        return par[node] = getP(par[node]);
    }
    void add(int u,int v){
        int a = getP(u), b = getP(v);
        if(a == b) return;
        par[b] = a;
    }
};
void solve(){
    int n,m,q;
    cin>>n>>m>>q;
    vector<vector<int>> v(m,vector<int>(n));
    for(auto &i:v) for(auto &j:i) cin>>j;
    dsu ds(n);
    for(int i=0;i<m;i++){
        for(int j=0;j<n;j++){
            ds.add(j,v[i][j]-1);
        }
    }
    while(q--){
        int a,b;
        cin>>a>>b;
        a --,b --;
        cout<<(ds.getP(a) == ds.getP(b) ? "DA" : "NE")<<endl;
    }
    
}
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);      cout.tie(0);
    int t=1;
    //cin>>t;
    while(t--){
        solve();
    }
    return 0;
}

• Subtask 1: 15 / 15
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 35 / 35