Clear Digit and Non Digit | Python Interview Questions | Data Engineer Interview Question | FAANG

Опубликовано: 10 Апрель 2026
на канале: Grow with Data
82
8

Video 287: In this video, we are going to decode a message

00:00 - Introduction to dataset and Question
04:20 - Wrong Approach
07:45 - Approach 1: Optimized Approach
11:00 - Conclusion

You are given a string s. Your task is to remove all digits by doing this operation repeatedly:

1. Delete the first digit and the closest non-digit character to its left.
2. Return the resulting string after removing all digits.

In this video, we explore a problem where we need to repeatedly remove all digits from a string and the closest non-digit character to its left.

** Approach 1: Optimized Approach **
1. Convert the string to a list for easier manipulation.
2. Use a while loop to check for any remaining digits.
3. Inside the loop, find the first digit and its closest left non-digit character, then delete both.
4. Repeat until all digits are processed.
5. Convert the list back to a string and return it.

For a comprehensive understanding and practical demonstration, be sure to watch the entire video. Happy coding!

code: https://github.com/jeganpillai/python...

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