Submission #991728


Source Code Expand

#include <bits/stdc++.h>

using namespace std;

#define fi first
#define se second
#define mp make_pair
#define pb push_back

#define N 1010
int f[N];
vector<int> A[N];

int fa(int x) {
	if (f[x] == x) return x;
	f[x] = fa(f[x]);
	return f[x];
}

int n, m;

int main() {
	cin >> n >> m;
	for (int i = 0; i < n; i ++) f[i] = i;
	for (int i = 0; i < n; i ++) {
		int k;
		cin >> k;
		for (int j = 0; j < k; j ++) {
			int x; cin >> x;
			x --;
			A[x].pb(i);
		}
	}
	for (int i = 0; i < m; i++) {
		for (int j = 1; j < (int) A[i].size(); j ++) {
			f[fa(A[i][j-1])] = fa(A[i][j]);
		}
	}
	int S = fa(0);
	bool F = true;
	for (int i = 0; i < n; i++)
		if (fa(i) != S) F = false;
	puts (F?"YES":"NO");
	return 0;
}

Submission Info

Submission Time
Task C - Interpretation
User sevenkplus
Language C++14 (GCC 5.4.1)
Score 200
Code Size 754 Byte
Status RE
Exec Time 117 ms
Memory 384 KB

Judge Result

Set Name sample dataset1 dataset2
Score / Max Score 0 / 0 200 / 200 0 / 200
Status
AC × 2
AC × 12
AC × 12
RE × 13
Set Name Test Cases
sample sample-01.txt, sample-02.txt
dataset1 sample-01.txt, sample-02.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt
dataset2 sample-01.txt, sample-02.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 02-01.txt, 02-02.txt, 02-03.txt, 02-04.txt, 02-05.txt, 02-06.txt, 02-07.txt, 02-08.txt, 02-09.txt, 02-10.txt, 02-11.txt, 02-12.txt, 02-13.txt
Case Name Status Exec Time Memory
01-01.txt AC 3 ms 256 KB
01-02.txt AC 3 ms 256 KB
01-03.txt AC 3 ms 256 KB
01-04.txt AC 3 ms 256 KB
01-05.txt AC 3 ms 256 KB
01-06.txt AC 3 ms 256 KB
01-07.txt AC 3 ms 256 KB
01-08.txt AC 3 ms 256 KB
01-09.txt AC 3 ms 256 KB
01-10.txt AC 3 ms 256 KB
02-01.txt RE 114 ms 256 KB
02-02.txt RE 114 ms 256 KB
02-03.txt RE 114 ms 256 KB
02-04.txt RE 113 ms 256 KB
02-05.txt RE 114 ms 256 KB
02-06.txt RE 114 ms 256 KB
02-07.txt RE 117 ms 384 KB
02-08.txt RE 116 ms 256 KB
02-09.txt RE 113 ms 256 KB
02-10.txt RE 113 ms 256 KB
02-11.txt RE 116 ms 256 KB
02-12.txt RE 115 ms 256 KB
02-13.txt RE 114 ms 256 KB
sample-01.txt AC 3 ms 256 KB
sample-02.txt AC 3 ms 256 KB