제출 #1198965

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1198965		brover29	Kutije (COCI21_kutije)	C++17	70 / 70	741 ms	18712 KiB

Main

#include <bits/stdc++.h>
//qwerty47924692
using namespace std;
using ll = long long;
const ll N=1005;
const string br="617283";
#define sz(a)(ll)a.size()
#define f first
#define s second
ll n,used[N],d[N][N],m;
vector<ll>g[N];
void dfs(ll v,ll pr){
    used[v]=1;
    d[pr][v]=1;
    for(ll to:g[v]){
        if(used[to])continue;
        dfs(to,pr);
    }
}
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    ll q;
    cin>>n>>m>>q;
    for(ll i=1;i<=m;i++){
        for(ll i=1;i<=n;i++){
            ll j;
            cin>>j;
            g[j].push_back(i);
        }
    }
    for(ll i=1;i<=n;i++){
        for(ll i=1;i<=n;i++)used[i]=0;
        dfs(i,i);
    }while(q--){
        ll v,u;
        cin>>v>>u;
        cout<<(d[v][u] ? "DA" : "NE")<<'\n';
    }
}

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