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Grokking the Coding Interview Patterns in Python

Solution: Reverse Vowels of a String

Explore how to apply the two pointers approach to reverse vowels in a string without affecting other characters. Learn to implement efficient in-place swaps and understand the solution's linear time complexity and space considerations.

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Statement

Given a string s, reverse only the vowels in the string and return the resulting string.

The vowels are ‘a’, ‘e’, ‘i’, ‘o’, and ‘u’, and they can appear in both lowercase and uppercase, potentially more than once.

Constraints:

  • 1≤1 \leq s.length ≤3×105 ...