4(viii)

#include <stdio.h>
#include <math.h>
int main()
{
    int n, o, p, q, r, s, t, u, v, w, x, digit = log10(n), a[digit], count = 0, z;
    printf("Enter the number: ");
    o = p = q = r = s = t = u = v = w = x = 0;
    scanf("%d", &n);
    while (n > 0) {
        z = n % 10;
        a[count] = z;
        n = n / 10;
        count++;
    }
    int i;
    for (i = 0; i < count; i++) {
        if (a[i] == 0)
            o++;
        else if (a[i] == 1)
            p++;
        else if (a[i] == 2)
            q++;
        else if (a[i] == 3)
            r++;
        else if (a[i] == 4)
            s++;
        else if (a[i] == 5)
            t++;
        else if (a[i] == 6)
            u++;
        else if (a[i] == 7)
            v++;
        else if (a[i] == 8)
            w++;
        else if (a[i] == 9)
            x++;
    }
    printf("No of 0=%d\nNo of 1=%d\nNo of 2=%d\nNo of 3=%d\nNo of 4=%d\nNo of 5=%d\nNo of 6=%d\nNo of 7=%d\nNo of 8=%d\nNo of 9=%d\n", o, p, q, r, s, t, u, v, w, x);
    return 0;
}