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How to descending sort int array with qsort in C

1 Answer

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

void print(int arr[], int len) { 
    for (int i = 0; i < len; i++) 
        printf("%i ", arr[i]);
    printf("\n");
}

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

int main() 
{ 
    int arr[] = {3, 4, 6, 1, 2, 5}; 
    int len = sizeof(arr)/sizeof(int); 
    
    qsort(arr, len, sizeof(int), compare_function);
    
    print(arr, len);
        
    return 0; 
} 



/*
run:

6 5 4 3 2 1 

*/

 




answered May 4 by avibootz
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