[MindTeaser]🏆 Flip a binary number

Question

🎯 Just replace the 0 with 1 and vice-versa

Input : 0101100101
Output: 1010011010

Answer 1

https://code.sololearn.com/cO5jIn1vlgDG/?ref=app

Answer 2

[print(1-int(i),end='') for i in input()]

Answer 3

Here's my try.
https://code.sololearn.com/cyi24IX079ua/?ref=app

Answer 4

A purely mathematical solution: Find the smallest power of two, which is bigger than the input and subtract (input+1) from it.