1528 Shuffle String

You are given a string s and an integer array indices of the same length. The string s will be shuffled such that the character at the ith position moves to indices[i] in the shuffled string.

Return the shuffled string.

Example 1:

Input: s = "codeleet", indices = [4,5,6,7,0,2,1,3]
Output: "leetcode"
Explanation: As shown, "codeleet" becomes "leetcode" after shuffling.

Example 2:

Input: s = "abc", indices = [0,1,2]
Output: "abc"
Explanation: After shuffling, each character remains in its position.

Solution:

class Solution {
    public String restoreString(String s, int[] indices) {
        // base case 
        if (s == null || s.length() <= 1){
            return s;
        }

        char[] result = new char[indices.length];

        for (int i = 0; i < indices.length; i++){
            int index = indices[i];
            result[index] = s.charAt(i);
        }

        return new String(result);
    }
}

// TC: O(n)

// SC: O(n