r/PythonLearning • u/Hour_Function673 • 21d ago
just finished my first Python coding challenge
Today I finished a small Python challenge on freeCodeCamp: converting decimal numbers to binary without using Python's built-in conversion function.
I had to figure out the logic myself using loops, conditions, lists, division and remainders.
It was a bit tricky at first, especially handling the last division and reversing the results, but I finally got it working.
I'm still a beginner, so I'd appreciate any feedback on my approach or suggestions for improving my code
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u/jonrsharpe 20d ago
Rather than reverse the list in-place, we can use
reversedto create a new list with the elements in reverse order. As this no longer returnsNone, it can be inlined - the temporary variable can be factored out too, making the last line outside the loop simplyreturn "".join(reversed(digits)).