javacpp

  Given a string, Your task is to complete the function   encode   that returns the   run-length encoded  string for the given string. eg  if the input string is “wwwwaaadexxxxxx”, then the function should return “w4a3d1e1x6″. You are required to complete the function  encode  that takes only one argument the string which is to be encoded and returns the encoded string. Example 1: Input: str = aaaabbbccc Output: a4b3c3 Explanation: a repeated 4 times consecutively b 3 times, c also 3 times. Example 2: Input: str = abbbcdddd Output: a1b3c1d4 Your Task: Complete the function  encode()  which takes a character array as an input parameter and returns the encoded string. Expected Time Complexity:  O(N), N = length of a given string. Expected Auxiliary Space:  O(1) Constraints: 1<=length of str<=100 Solution: import java.util.*;   class RLEncoding {    public static void main(String[] args)     {         Scanner sc = new Scanner(System.in);        int T = sc.nextInt();   sc.nextLi