Find the Longest Substring Having Vowels in Even Counts

Try to solve the Find the Longest Substring Containing Vowels in Even Counts problem.

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Statement

Given the string s, return the length of the longest substringA substring is a consecutive sequence of characters within a string. in which each vowel—a, e, i, o, and u—appears an even number of times.

Constraints:

  • 1≤1 \leq s.length ≤5×103\leq 5 \times 10^3

  • s contains only lowercase English letters.

Examples

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