Submission #866672

#	Time	Username	Problem	Language	Result	Execution time	Memory
866672		epicci23	Kutije (COCI21_kutije)	C++17	70 / 70	142 ms	9648 KiB

Main

#include "bits/stdc++.h"
using namespace std;
#define pb push_back
#define endl "\n" 
#define int long long
#define sz(x) ((int)(x).size())
#define all(x) (x).begin(),(x).end()

constexpr int N = 1005;

int par[N];
int siz[N];

int find(int a){
  if(par[a]==a) return a;
  return par[a]=find(par[a]);
}

void unite(int a,int b){
 a=find(a),b=find(b);
 if(a==b) return;
 if(siz[a]>siz[b]) swap(a,b);
 siz[b]+=siz[a];
 par[a]=b;
}

void solve(){
  
  iota(par,par+N,0LL);
  fill(siz,siz+N,1LL);

  int n,m,q;
  cin >> n >> m >> q;

  for(int j=1;j<=m;j++){
    for(int i=1;i<=n;i++){
    	int u;
    	cin >> u;
    	unite(i,u);
    }
  }

  while(q--){
  	int a,b;
  	cin >> a >> b;
  	if(find(a)==find(b)) cout << "DA\n";
  	else cout << "NE\n";
  }
}

int32_t main(){

  cin.tie(0); ios::sync_with_stdio(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