#include <iostream> #include <algorithm> using namespace std; int n,t; int main(){ cin>>t; while(t--){ cin>>n; int a[n+10],res=0; for(int i=0;i<n;i++) cin>>a[i]; sort(a,a+n); for(int i=0;i<n;i++) res=max(res,(n-i)*a[i]); cout<<res<<endl; } return 0; } |
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