#include <stdio.h>
 
int cmp(int x, int y)
{
    return x > y;
}
 
void swap(int *x, int *y)
{
     int tmp = *x;
 
     *x = *y;
     *y = tmp;
}
 
int main(void)
{
    int a[] = {3, 1, 4, 1, 5, 9, 2, 6, 5};
    size_t n = sizeof a / sizeof a[0];
 
    for (size_t i = 0; i < n - 1; ++i) {
        for (size_t j = 0; j < n - 1 - i; ++j) {
            if (cmp(a[j],a[j+1])) {
                swap(&a[j],&a[j+1]);
            }
        }
    }
 
    for (size_t i = 0; i < n; ++i) {
        printf("%d ", a[i]);
    }
    printf("\n");
 
    return 0;
}

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