C program to find Even or odd number using different methods
In this tutorial we learn how to find odd and even numbers by using different methods,
C program to check odd or even number simple program:
#include <stdio.h>
int main()
{
int n;
printf("Enter an integer\n");
scanf("%d", &n);
if ((n/2)*2 == n)
printf("Even\n");
else
printf("Odd\n");
return 0;
}
Odd or even program in C using modulus operator:
in decimal number system, even numbers are exactly divisible by two and odd number not.
We can use modulus operator '%' which returns the remainder, for example, 4%4 = 0 (remainder when four is divided by four).
Odd or even program in C using modulus operator
#include <stdio.h>
int main()
{
int n;
printf ("Enter an integer\n");
scanf("%d", &n);
if (n%2 == 0)
printf("Even\n");
else
printf("Odd\n");
return 0;
}
We can also used bitwise operator AND ( & ) to check odd and even numbers.
consider binary of 5 (0101), (7 & 1 = 1). You may observe that the least significant bit of every odd number is 1. Therefore (odd_number & 1) is one always and also (even_number & 1) is always zero.
C program to find odd or even using bitwise operator
#include <stdio.h>
int main()
{
int n;
printf("Input an integer\n");
scanf("%d", &n);
if (n & 1 == 1)
printf("Odd\n");
else
printf("Even\n");
return 0;
}
C program to check even or odd using conditional operator
#include <stdio.h>
int main()
{
int n;
printf("Input an integer\n");
scanf("%d", &n);
n%2 == 0 ? printf("Even\n") : printf("Odd\n");
return 0;
}
