Submission #724555

#	Time	Username	Problem	Language	Result	Execution time	Memory
724555		TahirAliyev	Kutije (COCI21_kutije)	C++17	0 / 70	1032 ms	1228 KiB

Main

#include <bits/stdc++.h>

#pragma GCC optimize("O3")

using namespace std;
 
#define ll long long int
#define oo 1e18 + 5
#define pii pair<int, int>

const int MAX = 1005;
bool visited[MAX];
set<int> g[MAX];

bool dfs(int node, int target){
    if(node == target) return true; 
    visited[node] = true;
    for(int to : g[node]){
        if(!visited[to]){
            if(dfs(to, target)){
                return true;
            }
        }
    }
    return false;
}


int main(){
    int n, m, q; cin >> n >> m >> q;
    for (int i = 1; i <= m; i++)
    {
        for (int j = 1; j <= n; j++)
        {
            int a; cin >> a;
            g[j].insert(a);
            g[a].insert(j);
        }
    }
    for (int i = 1; i <= n; i++)
    {
        cout << i << ": ";
        for(int a : g[i]){
            cout << a << ' ';
        }
        cout << '\n';
    }

    while(q--){
        memset(visited, 0, sizeof(visited));
        int a, b; cin >> a >> b;
        if(dfs(a, b)){
            cout << "DA\n";
        }
        else{
            cout << "NE\n";
        }
    }
}

• Subtask 1: 0 / 15
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 35