TheAlgorithms-C/misc/strong_number.c

/**
 * Modified on 07/12/2017, Kyler Smith
 *
 * A number is called strong number if sum of the
 * 	factorial of its digit is equal to number itself.
 */

#include <stdio.h>

void strng(int a)
{
    int j = a;
    int sum = 0;
    int b, i, fact = 1;
    while (a > 0)
    {
        fact = 1;
        b = a % 10;
        for (i = 1; i <= b; i++)
        {
            fact = fact * i;
        }
        a = a / 10;
        sum = sum + fact;
    }
    if (sum == j)
        printf("%d is a strong number", j);
    else
        printf("%d is not a strong number", j);
}
int main()
{
    int a;
    printf("Enter the number to check");
    scanf("%d", &a);
    strng(a);
    return 0;
}