Method sort

Java/Leetcode/Leetcode268.java:24–39

(int[] arr)

    static void sort(int[] arr) {
        int i = 0;
        while (i < arr.length) {
            int charIndex = arr[i];
            if (arr[i] > arr.length-1) {
                i++;
                continue;
            }

            if (arr[i] != arr[charIndex]) {
                swap(arr, i, charIndex);
            } else {
                i++;
            }
        }
    }

    static void swap(int[] arr, int a, int b){
        int temp=arr[a];