#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];
void solve() {
cin >> n >> k;
for(int i = 0; i < n; i++) {
int d; cin >> d;
while(d--) {
int x; cin >> x;
g[i].pb(x);
}
}
for(int i = 0; i < n; i++) {
for(auto j : g[i]) {
fq[j] = 1;
}
for(auto j : g[i]) {
for(auto l : g[j]) {
if(fq[l]) {
cout << 3 << endl;
return;
}
}
}
for(auto j : g[i]) {
fq[j] = 0;
}
}
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 |
1 ms |
1492 KB |
Output is correct |
2 |
Correct |
1 ms |
1492 KB |
Output is correct |
3 |
Correct |
4 ms |
1620 KB |
Output is correct |
4 |
Correct |
16 ms |
1744 KB |
Output is correct |
5 |
Correct |
15 ms |
1708 KB |
Output is correct |
6 |
Correct |
2 ms |
1748 KB |
Output is correct |
7 |
Correct |
3 ms |
1748 KB |
Output is correct |
8 |
Correct |
1 ms |
1492 KB |
Output is correct |
9 |
Correct |
1 ms |
1492 KB |
Output is correct |
10 |
Correct |
1 ms |
1492 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1492 KB |
Output is correct |
2 |
Correct |
1 ms |
1492 KB |
Output is correct |
3 |
Correct |
4 ms |
1620 KB |
Output is correct |
4 |
Correct |
16 ms |
1744 KB |
Output is correct |
5 |
Correct |
15 ms |
1708 KB |
Output is correct |
6 |
Correct |
2 ms |
1748 KB |
Output is correct |
7 |
Correct |
3 ms |
1748 KB |
Output is correct |
8 |
Correct |
1 ms |
1492 KB |
Output is correct |
9 |
Correct |
1 ms |
1492 KB |
Output is correct |
10 |
Correct |
1 ms |
1492 KB |
Output is correct |
11 |
Correct |
14 ms |
1744 KB |
Output is correct |
12 |
Correct |
17 ms |
1752 KB |
Output is correct |
13 |
Correct |
1 ms |
1432 KB |
Output is correct |
14 |
Correct |
20 ms |
1776 KB |
Output is correct |
15 |
Correct |
1 ms |
1492 KB |
Output is correct |
16 |
Correct |
2 ms |
1748 KB |
Output is correct |
17 |
Correct |
1 ms |
1492 KB |
Output is correct |
18 |
Correct |
3 ms |
1748 KB |
Output is correct |
19 |
Correct |
1 ms |
1492 KB |
Output is correct |
20 |
Correct |
2 ms |
1644 KB |
Output is correct |
21 |
Correct |
2 ms |
1700 KB |
Output is correct |
22 |
Correct |
1 ms |
1508 KB |
Output is correct |
23 |
Correct |
3 ms |
1752 KB |
Output is correct |
24 |
Correct |
2 ms |
1492 KB |
Output is correct |
25 |
Correct |
3 ms |
1752 KB |
Output is correct |
26 |
Correct |
3 ms |
1752 KB |
Output is correct |
27 |
Correct |
2 ms |
1748 KB |
Output is correct |
28 |
Correct |
4 ms |
1772 KB |
Output is correct |
29 |
Correct |
3 ms |
1748 KB |
Output is correct |
30 |
Correct |
6 ms |
1768 KB |
Output is correct |
31 |
Correct |
3 ms |
1724 KB |
Output is correct |
32 |
Correct |
6 ms |
1748 KB |
Output is correct |
33 |
Correct |
3 ms |
1768 KB |
Output is correct |
34 |
Correct |
3 ms |
1748 KB |
Output is correct |
35 |
Correct |
2 ms |
1620 KB |
Output is correct |
36 |
Correct |
2 ms |
1620 KB |
Output is correct |
37 |
Correct |
2 ms |
1620 KB |
Output is correct |
38 |
Correct |
2 ms |
1492 KB |
Output is correct |
39 |
Correct |
2 ms |
1544 KB |
Output is correct |
40 |
Correct |
4 ms |
1900 KB |
Output is correct |
41 |
Correct |
2 ms |
1516 KB |
Output is correct |
42 |
Correct |
4 ms |
1876 KB |
Output is correct |
43 |
Correct |
3 ms |
1876 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1492 KB |
Output is correct |
2 |
Correct |
1 ms |
1492 KB |
Output is correct |
3 |
Correct |
1 ms |
1504 KB |
Output is correct |
4 |
Correct |
1 ms |
1492 KB |
Output is correct |
5 |
Incorrect |
1 ms |
1432 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1492 KB |
Output is correct |
2 |
Correct |
1 ms |
1492 KB |
Output is correct |
3 |
Correct |
4 ms |
1620 KB |
Output is correct |
4 |
Correct |
16 ms |
1744 KB |
Output is correct |
5 |
Correct |
15 ms |
1708 KB |
Output is correct |
6 |
Correct |
2 ms |
1748 KB |
Output is correct |
7 |
Correct |
3 ms |
1748 KB |
Output is correct |
8 |
Correct |
1 ms |
1492 KB |
Output is correct |
9 |
Correct |
1 ms |
1492 KB |
Output is correct |
10 |
Correct |
1 ms |
1492 KB |
Output is correct |
11 |
Correct |
14 ms |
1744 KB |
Output is correct |
12 |
Correct |
17 ms |
1752 KB |
Output is correct |
13 |
Correct |
1 ms |
1432 KB |
Output is correct |
14 |
Correct |
20 ms |
1776 KB |
Output is correct |
15 |
Correct |
1 ms |
1492 KB |
Output is correct |
16 |
Correct |
2 ms |
1748 KB |
Output is correct |
17 |
Correct |
1 ms |
1492 KB |
Output is correct |
18 |
Correct |
3 ms |
1748 KB |
Output is correct |
19 |
Correct |
1 ms |
1492 KB |
Output is correct |
20 |
Correct |
2 ms |
1644 KB |
Output is correct |
21 |
Correct |
2 ms |
1700 KB |
Output is correct |
22 |
Correct |
1 ms |
1508 KB |
Output is correct |
23 |
Correct |
3 ms |
1752 KB |
Output is correct |
24 |
Correct |
2 ms |
1492 KB |
Output is correct |
25 |
Correct |
3 ms |
1752 KB |
Output is correct |
26 |
Correct |
3 ms |
1752 KB |
Output is correct |
27 |
Correct |
2 ms |
1748 KB |
Output is correct |
28 |
Correct |
4 ms |
1772 KB |
Output is correct |
29 |
Correct |
3 ms |
1748 KB |
Output is correct |
30 |
Correct |
6 ms |
1768 KB |
Output is correct |
31 |
Correct |
3 ms |
1724 KB |
Output is correct |
32 |
Correct |
6 ms |
1748 KB |
Output is correct |
33 |
Correct |
3 ms |
1768 KB |
Output is correct |
34 |
Correct |
3 ms |
1748 KB |
Output is correct |
35 |
Correct |
2 ms |
1620 KB |
Output is correct |
36 |
Correct |
2 ms |
1620 KB |
Output is correct |
37 |
Correct |
2 ms |
1620 KB |
Output is correct |
38 |
Correct |
2 ms |
1492 KB |
Output is correct |
39 |
Correct |
2 ms |
1544 KB |
Output is correct |
40 |
Correct |
4 ms |
1900 KB |
Output is correct |
41 |
Correct |
2 ms |
1516 KB |
Output is correct |
42 |
Correct |
4 ms |
1876 KB |
Output is correct |
43 |
Correct |
3 ms |
1876 KB |
Output is correct |
44 |
Incorrect |
6 ms |
2004 KB |
Output isn't correct |
45 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
1492 KB |
Output is correct |
2 |
Correct |
1 ms |
1492 KB |
Output is correct |
3 |
Correct |
4 ms |
1620 KB |
Output is correct |
4 |
Correct |
16 ms |
1744 KB |
Output is correct |
5 |
Correct |
15 ms |
1708 KB |
Output is correct |
6 |
Correct |
2 ms |
1748 KB |
Output is correct |
7 |
Correct |
3 ms |
1748 KB |
Output is correct |
8 |
Correct |
1 ms |
1492 KB |
Output is correct |
9 |
Correct |
1 ms |
1492 KB |
Output is correct |
10 |
Correct |
1 ms |
1492 KB |
Output is correct |
11 |
Correct |
14 ms |
1744 KB |
Output is correct |
12 |
Correct |
17 ms |
1752 KB |
Output is correct |
13 |
Correct |
1 ms |
1432 KB |
Output is correct |
14 |
Correct |
20 ms |
1776 KB |
Output is correct |
15 |
Correct |
1 ms |
1492 KB |
Output is correct |
16 |
Correct |
2 ms |
1748 KB |
Output is correct |
17 |
Correct |
1 ms |
1492 KB |
Output is correct |
18 |
Correct |
3 ms |
1748 KB |
Output is correct |
19 |
Correct |
1 ms |
1492 KB |
Output is correct |
20 |
Correct |
2 ms |
1644 KB |
Output is correct |
21 |
Correct |
2 ms |
1700 KB |
Output is correct |
22 |
Correct |
1 ms |
1508 KB |
Output is correct |
23 |
Correct |
3 ms |
1752 KB |
Output is correct |
24 |
Correct |
2 ms |
1492 KB |
Output is correct |
25 |
Correct |
3 ms |
1752 KB |
Output is correct |
26 |
Correct |
3 ms |
1752 KB |
Output is correct |
27 |
Correct |
2 ms |
1748 KB |
Output is correct |
28 |
Correct |
4 ms |
1772 KB |
Output is correct |
29 |
Correct |
3 ms |
1748 KB |
Output is correct |
30 |
Correct |
6 ms |
1768 KB |
Output is correct |
31 |
Correct |
3 ms |
1724 KB |
Output is correct |
32 |
Correct |
6 ms |
1748 KB |
Output is correct |
33 |
Correct |
3 ms |
1768 KB |
Output is correct |
34 |
Correct |
3 ms |
1748 KB |
Output is correct |
35 |
Correct |
2 ms |
1620 KB |
Output is correct |
36 |
Correct |
2 ms |
1620 KB |
Output is correct |
37 |
Correct |
2 ms |
1620 KB |
Output is correct |
38 |
Correct |
2 ms |
1492 KB |
Output is correct |
39 |
Correct |
2 ms |
1544 KB |
Output is correct |
40 |
Correct |
4 ms |
1900 KB |
Output is correct |
41 |
Correct |
2 ms |
1516 KB |
Output is correct |
42 |
Correct |
4 ms |
1876 KB |
Output is correct |
43 |
Correct |
3 ms |
1876 KB |
Output is correct |
44 |
Correct |
1 ms |
1492 KB |
Output is correct |
45 |
Incorrect |
35 ms |
7532 KB |
Output isn't correct |
46 |
Halted |
0 ms |
0 KB |
- |