This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
#define endl '\n'
using namespace std;
const int MAXN = 50005;
void speed()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
}
int n, k;
vector < int > g[MAXN];
int m;
void read()
{
cin >> n >> k;
for (int i = 1; i <= n; ++ i)
{
int cnt;
cin >> cnt;
m += cnt;
while(cnt --)
{
int x;
cin >> x;
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);
}
}
int main()
{
speed();
read();
return 0;
}
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