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Ruby program to convert the Binary number to Gray code using recursion

Last Updated : December 15, 2025

Problem Solution

In this program, we will create an integer number initialized with binary value and then we will convert the Binary number to the Gray code using recursion.

Program/Source Code

The source code to convert the Binary number to Gray code using recursion is given below. The given program is compiled and executed successfully.

# Ruby program to convert the Binary number 
# to Gray code using recursion

def bin2gray(n)
    if !(n>0)
        return 0;
    end
    a = n % 10;
    b= n / 10 % 10;
         
    if (a>0 && !(b>0)) || (!(a>0) && (b>0))        
        return (1 + 10 * bin2gray(n / 10));
    end
 
    return (10 * bin2gray(n / 10));
end

number = 11011011;  

result = bin2gray(number);

print "Gray code is: ",result;

Output

Gray code is: 10110110

Explanation

In the above program, we created an integer number number initialized with 11011011. Then we converted the given Binary number to the Gray code using recursive function bin2gray(). After that, we printed the result.

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