제출 #507670

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
507670		penguinhacker	Kutije (COCI21_kutije)	C++14	70 / 70	156 ms	10204 KiB

Main

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define ar array

const int mxN=1000;
int n, m, q, cmp[mxN], c;
bool adj[mxN][mxN];

void dfs(int u) {
	cmp[u]=c;
	for (int v=0; v<n; ++v)
		if (adj[u][v]&&!cmp[v])
			dfs(v);
}

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	cin >> n >> m >> q;
	for (int i=0; i<m; ++i)
		for (int j=0; j<n; ++j) {
			int k;
			cin >> k, --k;
			adj[j][k]=adj[k][j]=1;
		}
	for (int i=0; i<n; ++i)
		if (!cmp[i])
			++c, dfs(i);
	while(q--) {
		int u, v;
		cin >> u >> v, --u, --v;
		cout << (cmp[u]==cmp[v]?"DA":"NE") << "\n";
	}
	return 0;
}

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