# C program to check whether a number is odd or even without using if else statement

• How to check whether a number is odd or even without using if else statement in one line.
• Write a program in C to check a number is odd or even.

Required knowledge: Bitwise operator.
Algorithm to check odd and even number using bitwise operator
• Check whether least significant bit of a number(N) is 0 or not by doing bitwise And(&) with 1. if (N & 1) == 0, that means N is even otherwise odd number.

## C program to check odd or even number using bitwise operator

```#include<stdio.h>

int main() {
int n;

printf("Enter a number\n");
scanf("%d", &n);

(n & 1 && printf("Odd"))|| printf("Even");

return 0;
}
```
Output
```Enter a number
3
3 is Odd
```
```Enter a number
12
12 is Even
```

## C program to check odd or even number using bitwise operator

Algorithm to check odd and even number using bitwise operator
• If input number(N) is divisible by 2(N%2 == 0) then N is even otherwise odd number.
```#include<stdio.h>

int main() {
int n;
char *strList[] = {"Even", "Odd"};

printf("Enter a number\n");
scanf("%d", &n);

printf("%d is %s", n, strList[n%2]);

return 0;
}
```
Output
```Enter a number
5
5 is Odd
```
```Enter a number
8
8 is Even
```