1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | #include <iostream>
using namespace std;
int n, k, m = 99999999, sos, coc, cur;
int a;
int main()
{
ios_base::sync_with_stdio(0); cin.tie(nullptr); cout.tie(nullptr);
cin>>n>>k;
sos = 2*k;
for(int i = 1;; ++i){
if(i*i > sos){
cur = i;
break;
}
for(int j = 1; j <= i; ++j){
cin>>a;
m = min(m, a);
}
}
for(int i = cur; i <= n; i++){
coc = i+1;
for(int j = 1; j <= i; j++){
cin>>a;
if(a<m && j*(coc-j)<=k) m = a;
}
}
cout<<m;
}
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