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Micro-Drill #14 — Count vowels

Pointer Manipulation Target: 10s

Counting specific characters is a frequency-analysis building block for string problems.

sum(1 for c in s if c in 'aeiou')

Type it from memory. Go.

Practice Problems

• 345. Reverse Vowels of a String
• 1456. Maximum Number of Vowels in a Substring of Given Size