Reverse Vowels of a String

Submission Detail

480 / 480 test cases passed.
 Status:

Accepted
Runtime: 11 ms
Memory Usage: 44.6 MB
Submitted: 0 minutes ago
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Output:
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java
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Your runtime beats 33.97 % of java submissions.
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Accepted Solutions Memory Distribution

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java
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Your memory usage beats 27.49 % of java submissions.
Memory (KB)
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Invite friends to challenge Reverse Vowels of a String

Submitted Code: 0 minutes ago

Language: java

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class Solution {
public String reverseVowels(String s) {
int count = 0;
for (int i = 0; i < s.length(); i++) {
if (s.charAt(i) == 'a' || s.charAt(i) == 'A' ||
s.charAt(i) == 'e' || s.charAt(i) == 'E' ||
s.charAt(i) == 'i' || s.charAt(i) == 'I' ||
s.charAt(i) == 'o' || s.charAt(i) == 'O' ||
s.charAt(i) == 'u' || s.charAt(i) == 'U') {
count++;
}
}
char[] vowels = new char[count];
int[] indices = new int[count];
int it = 0;
for (int i = 0; i < s.length(); i++) {
if (s.charAt(i) == 'a' || s.charAt(i) == 'A' ||
s.charAt(i) == 'e' || s.charAt(i) == 'E' ||
s.charAt(i) == 'i' || s.charAt(i) == 'I' ||
s.charAt(i) == 'o' || s.charAt(i) == 'O' ||
s.charAt(i) == 'u' || s.charAt(i) == 'U') {
vowels[it] = s.charAt(i);
indices[it] = i;
it++;
}
}
// reverse vowels
int left = 0;
int right = vowels.length - 1;
while (left < right) {
char temp = vowels[left];
vowels[left] = vowels[right];
vowels[right] = temp;
left++;
right--;
}
char st[] = s.toCharArray();
for (int i = 0; i < indices.length; i++)
st[indices[i]] = vowels[i];
s = new String(st);
return s;
}
}
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