Given a string "AABCCC" make a new string "2A1B3C"

Question

I have implemented using java. Definitely not the efficient way · Accepted Answer

public class test {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		String first = "AABCCC";
		String newStr = "";
		for (int i=0;i

LP · Answer

string myS = "AABCCCCCCCCCCC";
    string newS;
    
    int idx = 0, count = 0;
    
    while(idx < myS.size())
    {
        count = 0;
        char let = myS[idx];
        while(idx < myS.size() && let == myS[idx])
        {
            count++;
            idx++;
        }
        
        newS = newS + to_string(count);
        newS = newS + let;
    }
    
    cout << newS ;

KPS · Answer

import java.io.*;
import java.util.*;
public class HashmapEx {

	public static void main(String args[])
	{
		String input=new String("AABBBCCZZZAAACCCGGGHHHAAAKKKLLL");
		HashMap hm=new HashMap();
		char carray[]= input.toCharArray();
		for(int i=0;i

Etch · Answer

public static void letterFreq(String s) {
		Map grid = new HashMap();
		
		for(int i = 0; i e :grid.entrySet()) {
			res+= e.getValue();
			res+= e.getKey();
		}
		
		System.out.print(res); //New String
	}

Etch · Answer

public static void letterFreq(String s) {
		Map grid = new HashMap();
		
		for(int i = 0; i e :grid.entrySet()) {
			res+= e.getValue();
			res+= e.getKey();
		}
		
		System.out.print(res); //New String
	}

JavaScript alternative · Answer

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