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3-digit Osiris number in C?
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
Updated on: 04-Oct-2019
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