Submission #862374

#	Time	Username	Problem	Language	Result	Execution time	Memory
862374		TAhmed33	Kutije (COCI21_kutije)	C++98	70 / 70	830 ms	3076 KiB

Main

#include <bits/stdc++.h>
#pragma GCC optimize ("Ofast")
using namespace std;
bool adj[1001][1001];
int main () {
	ios::sync_with_stdio(0);
	cin.tie(0);
	int n, m, q;
	cin >> n >> m >> q;
	for (int i = 1; i <= m; i++) {
		for (int j = 1; j <= n; j++) {
			int x; cin >> x;
			adj[j][x] = 1;
		}
	}
	for (int i = 1; i <= n; i++) adj[i][i] = 1;
	for (int i = 1; i <= n; i++) {
		for (int j = 1; j <= n; j++) {
			for (int k = 1; k <= n; k++) {
				adj[j][k] |= (adj[j][i] & adj[i][k]);
			}
		}
	}
	while (q--) {
		int a, b;
		cin >> a >> b;
		cout << (adj[a][b] ? "DA\n" : "NE\n");
	}
}

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