Hello ,
Can someone please tell me why I am getting wrong answer for test case 5?
I have used straight forward approach.
```
#include <stdio.h>
  2
  3 int group_distribution[10001];
  4
  5 void insertion_sort( int * arr, int size) {
  6     int i , j, key;
  7     for ( i = 1; i < size; i ++ ) {
  8         key = arr[i];
  9         j = i - 1;
 10         while ( arr[j] > key && j >= 0 ) {
 11             arr[j + 1] = arr[ j ];
 12             j = j - 1;
 13         }
 14         arr[ j + 1 ] = key;
 15     }
 16 }
 17
 18 int main( int argc, char **argv) {
 19     int k, ans = 0, i ;
 20     scanf("%d",&k);
 21     for ( i = 0; i < k ; i ++)
 22         scanf("%d",&group_distribution[i]);
 23     insertion_sort(group_distribution, k);
 24     for ( i = 0; i < (k+1)/2 ; i++ ) {
 25         ans += (group_distribution[0]+1)/2 ;
 26     }
 27     printf("%d\n",ans);
 28     return 0;
 29 }
```