Osiris Number is a number whose value is equal to the sum of values of all number formed by adding all the permutations of its own digits.
In this problem, we are given a 3-Digit number N, and we will check weather the number N is an Osiris number.
Let’s take an example,
Input : N = 132 Output : 132
Explanation
All sub-samples of N : 13 , 12, 21, 23 ,32 31.
Sum = 13+12+21+23+32+31 = 132
To do this, we have a formula to check whether the given number is Osiris number or not.
Example
#include <stdio.h> int main() { int n = 132; int a = n % 10; int b = (n / 10) % 10; int c = n / 100; int digit_sum = a + b + c; if (n == (2 * (digit_sum)*11)) { printf("%d is an Osiris number",n); } else printf("%d is not an Osiris number",n); return 0; }
Output
132 is an Osiris number