Submission #744863

#	Time	Username	Problem	Language	Result	Execution time	Memory
744863		sword060	Kutije (COCI21_kutije)	C++17	70 / 70	158 ms	9400 KiB

Main

#include <bits/stdc++.h>
using namespace std;
const int N=1005;
int x,k,q,p[N],s[N],a[N];
int get(int a){
  return (a==p[a]?a:p[a]=get(p[a]));
}
void merge(int l,int r){
  l=get(l),r=get(r);
  if(l==r)return;
  if(s[l]>s[r])swap(l,r);
  s[r]+=s[l];
  p[l]=r;
}
int main(){
  ios::sync_with_stdio(0);cin.tie(0);
  cin>>x>>k>>q;
  for(int i=1;i<=x;i++)p[i]=i,s[i]=1;
  for(int j=1;j<=k;j++){
    for(int i=1;i<=x;i++)cin>>a[i];
    for(int i=1;i<=x;i++)merge(i,a[i]);
  }
  while(q--){
    int l,r;cin>>l>>r;
    cout<<(get(l)==get(r)?"DA":"NE")<<"\n";
  }
  return 0;
}

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