This solution received "Time Limit Exceeded", but isn't this O(n)?

  • 0

    The code runs without error, and the input "hello" returns "olleh".

    public class Solution {
        public String reverseString(String s) {
            char[] arrayString = s.toCharArray();
            String stringReverse = "";
            for (int i = 0; i < s.length(); i++) {
                stringReverse = arrayString[i] + stringReverse;
            return stringReverse;

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