View Code of Problem 61

#include<bits/stdc++.h>
using namespace std;
 int main()
 {
    int t,n;
    scanf("%d",&t);
    while(t--){
        scanf("%d",&n);
        int num[n];
        for(int i=0;i<n;i++)
            scanf("%d",&num[i]);
        sort(num,num+n);
        int flag=0;

        for(int i=0;i<n;i++)
           if((num[i]*(n-i))>flag) flag=num[i]*(n-i);
        printf("%d\n",flag);
    }
    return 0;
 }

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