#include<bits/stdc++.h>
#define endl '\n'
using namespace std;
const int MAXN = 5005;
void speed()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
}
int n, k;
vector < int > g[MAXN];
int m;
bitset < 5005 > bs[MAXN];
void read()
{
cin >> n >> k;
for (int i = 0; i < n; ++ i)
{
int cnt;
cin >> cnt;
m += cnt;
while(cnt --)
{
int x;
cin >> x;
bs[i][x] = 1;
g[i].push_back(x);
}
}
if(k == 1)
{
cout << 1 << endl;
exit(0);
}
if(k == 2)
{
if(m)cout << 2 << endl;
else cout << 1 << endl;
exit(0);
}
if(k == 3)
{
int ans = 1;
if(m)ans = 2;
for (int i = 0; i < n; ++ i)
{
for (int j = i + 1; j < n; ++ j)
{
bitset < 5005 > curr = (bs[i] & bs[j]);
curr = (curr >> j);
if(curr.count())
{
ans = 3;
break;
}
}
}
cout << ans << endl;
}
}
int main()
{
speed();
read();
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
2 ms |
3676 KB |
Output is correct |
4 |
Correct |
2 ms |
3676 KB |
Output is correct |
5 |
Correct |
2 ms |
3928 KB |
Output is correct |
6 |
Correct |
3 ms |
3676 KB |
Output is correct |
7 |
Correct |
2 ms |
3676 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
604 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
2 ms |
3676 KB |
Output is correct |
4 |
Correct |
2 ms |
3676 KB |
Output is correct |
5 |
Correct |
2 ms |
3928 KB |
Output is correct |
6 |
Correct |
3 ms |
3676 KB |
Output is correct |
7 |
Correct |
2 ms |
3676 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
604 KB |
Output is correct |
11 |
Correct |
2 ms |
3672 KB |
Output is correct |
12 |
Incorrect |
1772 ms |
3676 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
2 ms |
3676 KB |
Output is correct |
4 |
Correct |
2 ms |
3676 KB |
Output is correct |
5 |
Correct |
2 ms |
3928 KB |
Output is correct |
6 |
Correct |
3 ms |
3676 KB |
Output is correct |
7 |
Correct |
2 ms |
3676 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
604 KB |
Output is correct |
11 |
Correct |
2 ms |
3672 KB |
Output is correct |
12 |
Incorrect |
1772 ms |
3676 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
2 ms |
3676 KB |
Output is correct |
4 |
Correct |
2 ms |
3676 KB |
Output is correct |
5 |
Correct |
2 ms |
3928 KB |
Output is correct |
6 |
Correct |
3 ms |
3676 KB |
Output is correct |
7 |
Correct |
2 ms |
3676 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
604 KB |
Output is correct |
11 |
Correct |
2 ms |
3672 KB |
Output is correct |
12 |
Incorrect |
1772 ms |
3676 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |