Question

How to sort array of numbers using qsort in C

Answer 1

#include <stdio.h>
#include <stdlib.h>

int compare(const void * a, const void * b) {
    return ( *(int*)a - *(int*)b );
}

int main()
{
  int arr[] = {5, 8, 1, 9, 0, 5, 4, 2};
  int size = sizeof(arr)/sizeof(arr[0]);

  qsort(arr, size, sizeof(int), compare);
  
  for (int i = 0; i < size; i++)
     printf("%d ", arr[i]);
     
  return 0;
}




/*
run:

0 1 2 4 5 5 8 9 
    
*/    

 

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