C program to check even or odd number using conditional operator

Categories C programming 2 mins read

Write a C program to input a number and check whether number is even or odd using Conditional/Ternary operator ?:. How to check even or odd numbers using conditional operator in C program.

Example

Input

Input num: 10

Output

10 is even.

Required knowledge

Basic C programming, Arithmetic operators, Conditional operator

Learn this program using other approaches.

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Program to check even or odd

/**
 * C program to check even or odd number using conditional operator
 */

#include <stdio.h>

int main()
{
    int num;

    /* Input a number from user */
    printf("Enter any number to check even or odd: ");
    scanf("%d", &num);

    /* 
     * If n%2==0 then 
     *     print it is even
     * else
     *     print it is odd
     */
    (num%2 == 0) 
        ? printf("The number is EVEN") 
        : printf("The number is ODD");

    return 0;
}

Another approach of writing the same program as.

/**
 * C program to check even or odd number using conditional operator
 */

#include <stdio.h>

int main()
{
    int num;

    /* Input number from user */
    printf("Enter any number to check even or odd: ");
    scanf("%d", &num);

    /* Print Even if (num%2==0) */
    printf("The number is %s", (num%2==0 ? "EVEN" : "ODD"));

    return 0;
}

Output

Enter any number to check even or odd: 20
The number is EVEN

Happy coding 😉