Runtime9 msBeats39.59%
Memory45.1 MBBeats10.38%
#N345. Reverse Vowels of a String
problem link
#solution

class Solution {
    public String reverseVowels(String s) {
        String vowels = "aeiouAEIOU";
        char[] arr = s.toCharArray();
        for(int i=0, j=arr.length-1; i<j; ){
            if(vowels.contains(""+arr[i]) && vowels.contains(""+arr[j])){
                char temp=arr[i];
                arr[i]=arr[j];
                arr[j]=temp;
                i++;
                j--;
            }
            else if(vowels.contains(""+arr[i])) j--;
            else if(vowels.contains(""+arr[j])) i++;
            else{
                i++;
                j--;
            }
        }
        return new String(arr);
    }
}