1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | #include<bits/stdc++.h>
using namespace std;
int main()
{
ios_base::sync_with_stdio(0);
int n,q;
int mini = 10000;
cin >> n >> q;
int val = 0;
for(int k=1;k<=n;k++)
{
for(int i=1;i<=k;i++)
{
cin >> val;
if(i*(k-i+1) <=q )
mini = min(val,mini);
//cout << i << " " << k << " " << i*(k-i+1) <<endl;
}
}
cout << mini<<endl;
}
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