#include<bits/stdc++.h>
using namespace std;
const long long inf = (long long) 1e18 + 10;
const int inf1 = (int) 1e9 + 10;
#define int long long
#define dbl long double
#define endl '\n'
#define sc second
#define fr first
#define mp make_pair
#define pb push_back
#define all(x) x.begin(), x.end()
const int maxn = 5e4+10;
int n, k, fq[maxn];
vector<int> g[maxn];
map<int,int> ed[maxn];
void solve() {
cin >> n >> k;
for(int i = 0; i < n; i++) {
int d; cin >> d;
while(d--) {
int x; cin >> x;
ed[i][x] = 1;
g[i].pb(x);
}
}
for(int i = 0; i < n; i++) {
for(auto j : g[i]) {
for(auto l : g[j]) {
if(ed[i][l]) {
cout << 3 << endl;
return;
}
}
}
}
for(int i = 0; i < n; i++) {
if(g[i].size()) {
cout << 2 << endl;
return;
}
}
cout << 1 << endl;
}
int32_t main() {
ios::sync_with_stdio(false); cin.tie(0);
// freopen("in.in", "r", stdin);
// freopen("out.out", "w", stdout);
int tt = 1;
// cin >> tt;
while(tt--) {
solve();
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
3796 KB |
Output is correct |
2 |
Correct |
2 ms |
3796 KB |
Output is correct |
3 |
Correct |
8 ms |
6100 KB |
Output is correct |
4 |
Runtime error |
1293 ms |
524288 KB |
Execution killed with signal 9 |
5 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
3796 KB |
Output is correct |
2 |
Correct |
2 ms |
3796 KB |
Output is correct |
3 |
Correct |
8 ms |
6100 KB |
Output is correct |
4 |
Runtime error |
1293 ms |
524288 KB |
Execution killed with signal 9 |
5 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
3796 KB |
Output is correct |
2 |
Correct |
3 ms |
3800 KB |
Output is correct |
3 |
Correct |
3 ms |
3796 KB |
Output is correct |
4 |
Correct |
2 ms |
3844 KB |
Output is correct |
5 |
Incorrect |
2 ms |
3796 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
3796 KB |
Output is correct |
2 |
Correct |
2 ms |
3796 KB |
Output is correct |
3 |
Correct |
8 ms |
6100 KB |
Output is correct |
4 |
Runtime error |
1293 ms |
524288 KB |
Execution killed with signal 9 |
5 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
3796 KB |
Output is correct |
2 |
Correct |
2 ms |
3796 KB |
Output is correct |
3 |
Correct |
8 ms |
6100 KB |
Output is correct |
4 |
Runtime error |
1293 ms |
524288 KB |
Execution killed with signal 9 |
5 |
Halted |
0 ms |
0 KB |
- |