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  1. #include <cmath>
  2. #include <cstdio>
  3. #include <vector>
  4. #include <iostream>
  5. #include <algorithm>
  6. using namespace std;
  7. int compare (const void * a, const void * b)
  8. {
  9.   return ( *(int*)a - *(int*)b );
  10. }
  11.  
  12. int main() {
  13.         int t;
  14.     cin>>t;
  15.     while(t--){
  16.         int n;
  17.         cin>>n;
  18.         int h[n+1];
  19.         for(int i =1;i<=n;i++){
  20.             cin>>h[i];
  21.  
  22.         }
  23.         qsort(h+1,n,sizeof(int),compare);
  24.         int s=1,j;
  25.       long long  int sum=0;
  26.        long long  int prev_s;
  27.          for(s=1;s<=n;s++){
  28.             prev_s=sum;
  29.             sum=0;
  30.         for(j=s;j<=n;j++){
  31.             sum +=s*h[j];
  32.         }
  33.         if(prev_s>sum)
  34.             break;
  35.     }
  36.  
  37.         cout<<prev_s<<endl;
  38.  
  39.     }
  40.  
  41.     return 0;
  42. }
  43.  
Success #stdin #stdout 0s 3460KB
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https://ideone.com/HqE3JC
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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