How to Solve Vowels Game in a String Problem
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Vowels Game in a String
Alice and Bob are playing a game on a string. You are given a string s, Alice and Bob will take turns playing the following game where Alice starts first: On Alice's turn, she has to remove any non-em...
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Understanding the Vowels Game in a String Problem
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Problem Statement
Alice and Bob are playing a game on a string. You are given a string s, Alice and Bob will take turns playing the following game where Alice starts first: On Alice's turn, she has to remove any non-empty substring from s that contains an odd number of vowels. On Bob's turn, he has to remove any non-empty substring from s that contains an even number of vowels. The first player who cannot make a move on their turn loses the game. We assume that both Alice and Bob play optimally. Return true if Alice wins the game, and false otherwise. The English vowels are: a, e, i, o, and u.
Vowels Game in a String
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Examples
s = "leetcoder"trueAlice can win the game as follows: Alice plays first, she can delete the underlined substring in s = "leetcoder" which contains 3 vowels. The resulting string is s = "der". Bob plays second, he can delete the underlined substring in s = "der" which contains 0 vowels. The resulting string is s = "er". Alice plays third, she can delete the whole string s = "er" which contains 1 vowel. Bob plays fourth, since the string is empty, there is no valid play for Bob. So Alice wins the game.
s = "bbcd"falseThere is no valid play for Alice in her first turn, so Alice loses the game.
Constraints
1 <= s.length <= 105s consists only of lowercase English letters.How Interview Coder Helps with Leetcode Problems
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