LeetCode 3227: Vowels Game in a String Solution
Master LeetCode problem 3227 (Vowels Game in a String), a medium challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.
3227. Vowels Game in a String
Problem Explanation
Explanation
To solve this problem, we can use a simple approach where we iterate through the string s and count the number of vowels in each substring. Based on the count of vowels in each substring, we can determine if the substring has an odd or even number of vowels.
We can then simulate the game played by Alice and Bob. Alice will try to remove substrings with odd numbers of vowels, while Bob will try to remove substrings with even numbers of vowels. We need to check if Alice can make a move on her turn. If Alice can make a move and Bob cannot make a move, then Alice wins the game.
Solution Code
public boolean canAliceWin(String s) {
int n = s.length();
boolean aliceTurn = true;
int vowelsCount = 0;
for (char c : s.toCharArray()) {
if ("aeiou".indexOf(c) >= 0) {
vowelsCount++;
} else {
if (vowelsCount % 2 == 1) {
if (aliceTurn) {
return true;
}
aliceTurn = !aliceTurn;
}
vowelsCount = 0;
}
}
return aliceTurn && vowelsCount % 2 == 1;
}Try It Yourself
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