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Quick Summary

Identify words that start and end with vowels.
Reverse only the substring between the first and last character for qualifying words.
Return the modified array while leaving non-qualifying words untouched.

What This Tests

String manipulation and substring extraction
Case-insensitive character comparison
Conditional array traversal
Two-pointer swapping technique

Common Patterns

Two Pointers

Hashing

String Manipulation

Test Cases

Input

Output

Expected