C Exercises: Check if a given integer is even or odd using an inline function

Last update on August 07 2025 12:48:00 (UTC/GMT +8 hours)

9. Even/Odd Check Inline Variants

Write a C program to check if a given integer is even or odd using an inline function.

Sample Solution:

C Code:

#include <stdio.h>

inline int isEven(int n) {
  return n % 2 == 0;
}
int main() {
  int num;
  printf("Input an integer: ");
  scanf("%d", & num);
  if (isEven(num)) {
    printf("%d is even.\n", num);
  } else {
    printf("%d is odd.\n", num);
  }
  return 0;
}

Sample Output:

Input an integer: 3
3 is odd.
Input an integer: 46
46 is even.

Explanation:

In the above program we first define an inline function isEven() that takes an integer as an argument and returns a boolean indicating whether the integer is even or not. The main function then prompts the user to input an integer, passes it to the isEven() function, and prints a message indicating whether the integer is even or odd.

Flowchart:

For more Practice: Solve these Related Problems:

Write a C program to check if a number is even or odd using bitwise operators in an inline function.
Write a C program to return "Even" or "Odd" as a string from an inline function based on the input integer.
Write a C program to determine the parity of each element in an array using an inline function and count evens and odds.
Write a C program to check the parity of a series of numbers and print a summary using an inline function.

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