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C Exercises: Check whether a number is even or odd

C Conditional Statement: Exercise-2 with Solution

Write a C program to check whether a given number is even or odd.

Pictorial Presentation:

Check whether a number is even or odd

Sample Solution:

C Code:

#include <stdio.h>
void main()
{
    int num1, rem1;
 
    printf("Input an integer : ");
    scanf("%d", &num1);
    rem1 = num1 % 2;
    if (rem1 == 0)
        printf("%d is an even integer\n", num1);
    else
        printf("%d is an odd integer\n", num1);
}

Sample Output:

Input an integer : 15                                                                                         
15 is an odd integer 

Flowchart:

Flowchart: Check whether a number is even or odd

C Programming Code Editor:

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Next: Write a C program to check whether a given number is positive or negative.

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C Programming: Tips of the Day

Why do C and C++ compilers allow array lengths in function signatures when they're never enforced?

It is a quirk of the syntax for passing arrays to functions.

Actually it is not possible to pass an array in C. If you write syntax that looks like it should pass the array, what actually happens is that a pointer to the first element of the array is passed instead.

Since the pointer does not include any length information, the contents of your [] in the function formal parameter list are actually ignored.

Ref : https://bit.ly/3fhlvdH