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Convert Decimal to Binary Using Recursion

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A Python program to convert a decimal number to binary using a recursive function.

Function Definition (decimal_to_binary(n))
- A recursive function to convert a decimal number to binary.
Base Case (if n <= 1)
- If n is 0 or 1, return it as a string.
Recursive Case (decimal_to_binary(n // 2) + str(n % 2))
- Recursively call the function with n // 2.
- Append the remainder (n % 2) to the result.
User Input (num)
- Takes a decimal number as input using int(input()).
Function Call (decimal_to_binary(num))
- Calls the function and prints the binary result.

Program:

def decimal_to_binary(n):

    if n <= 1:

        return str(n)

    return decimal_to_binary(n // 2) + str(n % 2)



num = int(input("Enter a decimal number: "))

print("Binary:", decimal_to_binary(num))

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