Submission #991781
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 101000 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 | 400 |
Code Size | 756 Byte |
Status | AC |
Exec Time | 62 ms |
Memory | 5372 KB |
Judge Result
Set Name | sample | dataset1 | dataset2 | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 200 / 200 | 200 / 200 | ||||||
Status |
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Set Name | Test Cases |
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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 | 10 ms | 3068 KB |
01-02.txt | AC | 5 ms | 2560 KB |
01-03.txt | AC | 5 ms | 2688 KB |
01-04.txt | AC | 5 ms | 2560 KB |
01-05.txt | AC | 5 ms | 2560 KB |
01-06.txt | AC | 5 ms | 2560 KB |
01-07.txt | AC | 5 ms | 2560 KB |
01-08.txt | AC | 5 ms | 2688 KB |
01-09.txt | AC | 5 ms | 2560 KB |
01-10.txt | AC | 5 ms | 2688 KB |
02-01.txt | AC | 48 ms | 4608 KB |
02-02.txt | AC | 55 ms | 3584 KB |
02-03.txt | AC | 49 ms | 4096 KB |
02-04.txt | AC | 60 ms | 4224 KB |
02-05.txt | AC | 59 ms | 3712 KB |
02-06.txt | AC | 61 ms | 4224 KB |
02-07.txt | AC | 60 ms | 3712 KB |
02-08.txt | AC | 48 ms | 4324 KB |
02-09.txt | AC | 62 ms | 5112 KB |
02-10.txt | AC | 53 ms | 5372 KB |
02-11.txt | AC | 54 ms | 5372 KB |
02-12.txt | AC | 53 ms | 4608 KB |
02-13.txt | AC | 52 ms | 4608 KB |
sample-01.txt | AC | 5 ms | 2560 KB |
sample-02.txt | AC | 5 ms | 2560 KB |