C program to sort an array using pointers (bubble sort) Solution, output & explanation

#include <stdio.h>

void sort(int *a, int n) {
    for (int i = 0; i < n - 1; i++)
        for (int *p = a; p < a + n - 1 - i; p++)
            if (*p > *(p + 1)) {
                int t = *p;
                *p = *(p + 1);
                *(p + 1) = t;
            }
}

int main(void) {
    int a[] = {42, 7, 19, 3, 25};
    int n = sizeof a / sizeof a[0];
    sort(a, n);
    for (int *p = a; p < a + n; p++)
        printf("%d ", *p);
    printf("\n");
    return 0;
}

3 7 19 25 42