C Exercises: Check if a non-negative given number is a multiple of 3 or 7, but not both

C-programming basic algorithm: Exercise-20 with Solution

Write a C program to check if a non-negative given number is a multiple of 3 or 7, but not both.

C Code:

#include <stdio.h>
#include <stdlib.h>

int main(void){
    printf("%d",test(3));
    printf("\n%d",test(7));
    printf("\n%d",test(21));
    }   
    
    int test(int n)
         {
            return n % 3 == 0 ^ n % 7 == 0;

        }

Sample Output:

1
1
0

Flowchart:

Solution

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