Requirement: 1. Please use Python 3 2. You cannot import any module 3. The progr

Question

Requirement:

1. Please use Python 3

2. You cannot import any module

3. The programs must be solved by Recursion

4. You must follow by 1~3. I post this question before, but got incorrect answer.

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Question:

1.Write a program that asks the user for a binary string that also contains x's. A binary string is a sequence of 1's and 0's. Your program should display all possible binary strings where the x's can be replaced with either 1's or 0's.

a.Examples

Enter a binary string: 1011

Enter a binary string: 10x0

Enter a binary string: xx0x

Explanation / Answer

def InputString:

binary =print("Enter a binary string:: ")

n=int(binary)

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