Submission #536489

#	Time	Username	Problem	Language	Result	Execution time	Memory
536489		l3nl3	Kutije (COCI21_kutije)	C++17	70 / 70	147 ms	9540 KiB

Main

/*#pragma GCC optimize("O3")
#pragma GCC target ("avx2")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC optimize("unroll-loops")
*/
#include <bits/stdc++.h>

#define int long long

using namespace std;

const int N = 1e3 + 7;

int n, m, q, p[N], r[N];

int getp (int x) {
	if (x == p[x]) return x;
	return p[x] = getp(p[x]);
}

void unite (int a, int b) {
	a = getp(a);
	b = getp(b);
	if (a == b) return;
	if (r[b] > r[a]) swap(a, b);
	p[b] = a;
	r[a] += r[b];
}

signed main () {
//	freopen("", "r", stdin);
//	freopen("", "w", stdout);
	ios_base::sync_with_stdio(0);
	cin.tie(0), cout.tie(0);  
	cin >> n >> m >> q;
	for (int i = 1; i <= n; i++) {
		p[i] = i;
		r[i] = 1;
	}
	for (int i = 1; i <= m; i++) {
		for (int j = 1; j <= n; j++) {
			int x;
			cin >> x;
			unite(x, j);
		}
	}
	while (q--) {
		int a, b;
		cin >> a >> b;
		if (getp(a) == getp(b)) cout << "DA\n";
		else cout << "NE\n";
	}
}

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