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A collection of one-liner Python answers on some online code challenges.

The idea of this repository came when I challenged shinez1997 to resolve code problems on binarysearch.com with only one line of Python code. He is better than me in every aspect of coding, and this is only way I can beat him somehow.

• The answer is on the same line with the return.
• No module is imported except defaults by code challenge platforms.
• Must not reach the TLE of the code challenge platform.
• Hacks, tricks, or whatever that fits in one line and pass the tests is accepted.

Example:

# functools is imported by default
class Solution: # default by online judge
    def minAddToMakeValid(self, s: str) -> int:  # default by online judge
        # answer fit in one line
        return len(functools.reduce(lambda c1, c2: c2 if not c1 else c1[:-1] if c2==")" and c1[-1] == "(" else c1 + c2, s)) if s else len(s)

• Just don't.
• When you hate your future self.
• When you hate your company, you are willing to leave, you want your product run but be unmaintainable.
• When the challenge is too simple to you, you want to make life complicate.

• Many of the answers are not really 1-liner Python code, as they use functions from libraries.
• Many of the answers are not the best optimized answers. They just fit under the requirement of the problem's Execute Time Limit.
• Code challenge websites usually import some default Python libraries, but the list may vary between sites.

• Found this interesting works of finxter: pythononeliners | 10 Elegant Python One-Liners That Fit in a Tweet

Please use this template if you want to contribute to this list:

Source: Link

Description:

Description and example

Answer:

# Code in Python

Explanations:

• dangsonbk
• shinez1997
• RohitSgh
• runarmod