Copy Files from One Folder to Another Using Python

We can easily check the Odd or Even by using conditional statements.

• We can divide the number by 2, then check whether the remainder is 0 or not. If 0, then it is even.
• We can also perform the AND operation with the number and 1. If the answer is 0, then it is even; otherwise odd.

There is no need to use conditional statements in both approaches. We will see two different methods to check the odd or even.

Using Modulo Operator

This approach uses the Modulo Operator to determine whether the number is even or odd. We will show you the process to check whether the given number is even or not all you have to do is follow the steps below.

Steps

Following are the steps:/p>

• Take an integer input from the user.
• Declare an array with two values: "Even" and "Odd". We will use the remainder to access the appropriate index in this array.
• Now, print the value at the index corresponding to the remainder. If the number is even, the remainder will be 0, and "Even" will be printed. If the number is odd, the remainder will be 1, and "Odd" will be printed.

Example 

Following is an example to verify whether a given number is even or odd using the modulo ("%") operator:/p>

#include <iostream>
using namespace std;
            
int main() {
   int a = 1273;
   cout << "Given Number: " << a;
   string ans[] = {"Even","Odd"};
   cout << " is "<< ans[a % 2] << endl;
   return 0;
}

Following is the output of the above program:/p>

Given Number: 1273 is Odd

Using Bitwise Operation

We already know that if the least significant bit (LSB) of a number is set to 1, the number is odd. If the LSB is 0, then the number is even. Here we are going to use the Bitwise Operation to check the LSB.

Steps

Following are the steps:/p>

• Declare an array with two values, "Even" and "Odd".
• We will use LSB to access the appropriate index in this array. 
• Check the bit-wise AND of the number with 1.
• This operation will give 0 if the number is even and 1 if the number is odd.
• Use the result as an index to get and print the appropriate value from the array.

Example 

Following is an example to verify whether a given number is even or odd using the bit-wise operation:br>

#include <iostream>
using namespace std;
        
int main() {
   int num = 75400;
   cout << "Given Number: " << num;
   string ans[] = {"Even", "Odd"};
   int res = num & 1;
   cout << " is " << ans[res] << endl;
   return 0;
}

Following is the output of the above code:/p>

Given Number: 75400 is Even