Submission #3045147
Source Code Expand
#include <iostream> #include <vector> #include <string> using namespace std; typedef long long ll; ll n, m; vector<ll> vec[200100]; bool tsuka[200100]; void dfs(ll x){ tsuka[x] = true; for (ll i = 0; i < vec[x].size(); i++){ if (tsuka[vec[x][i]]) continue; dfs(vec[x][i]); } } int main(void){ // Your code here! cin >> n >> m; for (ll i = 0; i < n + m; i++) tsuka[i] = false; for (ll i = 0; i < n; i++){ ll k; cin >> k; for (ll j = 0; j < k; j++){ ll l; cin >> l; l--; vec[i].push_back(n + l); vec[n + l].push_back(i); } } dfs(0); bool ans = true; for (ll i = 0; i < n; i++) { if (!tsuka[i]) ans = false; } cout << (ans ? "YES" : "NO") << endl; }
Submission Info
Submission Time | |
---|---|
Task | C - Interpretation |
User | kwfumou1242 |
Language | C++14 (GCC 5.4.1) |
Score | 400 |
Code Size | 856 Byte |
Status | AC |
Exec Time | 58 ms |
Memory | 9216 KB |
Judge Result
Set Name | sample | dataset1 | dataset2 | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 200 / 200 | 200 / 200 | ||||||
Status |
|
|
|
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, sample-01.txt, sample-02.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
01-01.txt | AC | 3 ms | 4992 KB |
01-02.txt | AC | 3 ms | 4992 KB |
01-03.txt | AC | 3 ms | 4992 KB |
01-04.txt | AC | 3 ms | 4992 KB |
01-05.txt | AC | 3 ms | 4992 KB |
01-06.txt | AC | 4 ms | 4992 KB |
01-07.txt | AC | 3 ms | 4992 KB |
01-08.txt | AC | 3 ms | 4992 KB |
01-09.txt | AC | 3 ms | 4992 KB |
01-10.txt | AC | 3 ms | 4992 KB |
02-01.txt | AC | 48 ms | 8704 KB |
02-02.txt | AC | 49 ms | 9216 KB |
02-03.txt | AC | 46 ms | 8448 KB |
02-04.txt | AC | 58 ms | 8576 KB |
02-05.txt | AC | 54 ms | 9216 KB |
02-06.txt | AC | 58 ms | 8576 KB |
02-07.txt | AC | 55 ms | 9216 KB |
02-08.txt | AC | 39 ms | 8944 KB |
02-09.txt | AC | 53 ms | 9076 KB |
02-10.txt | AC | 44 ms | 8948 KB |
02-11.txt | AC | 44 ms | 8948 KB |
02-12.txt | AC | 45 ms | 8832 KB |
02-13.txt | AC | 46 ms | 8832 KB |
sample-01.txt | AC | 3 ms | 4992 KB |
sample-02.txt | AC | 3 ms | 4992 KB |