Goal Parser Interpretation

Given a string which contains "G", "()","(al)". Then replace "()" with "o", "(al)" with "al" and "G" remains same

Example 1:

Input: str="G()(al)"
Output: "Goal"
Explanation: replace "()" with "o", replace "(al)" with "al".

Approach:

Java

public class GoalParser {

    public static void main(String[] args) {

        String cmd = "G()(al)";

        System.out.println(goalParser(cmd));

    }

    public static String goalParser(String command) {

        StringBuffer s = new StringBuffer();

        for (int i = 0; i < command.length(); i++) {

            char c = command.charAt(i);

            if (c == 'G') {

                s.append(c);

            } else if (c == '(' && command.charAt(i + 1) == ')') {

                s.append("o");

            } else if (c == 'a') {

                s.append("al");

            }

        }

        return s.toString();

    }

}

C++

#include <bits/stdc++.h>

using namespace std;

string interpret(string s) 

{

    int n=s.size();

    int i=0;

    string ans="";

    //iterate till the end of 

    //length of string

    while(i<n)

    {

        if(s[i]=='G')

        {

                ans+=s[i];

                i+=1;

         }

         //if () then ans =ans+"o"

        else if(s[i]=='('&&s[i+1]==')')

         {

                ans+="o"; 

               i+=2;

         }

        //else ans=ans+"al";

       else

        {

                ans+="al";

                i+=4;

        }

        

     }    

        return ans;

}

int main()

{

     string str="G()(al)";

     string goal=interpret(str);

     cout<<goal<<"\n";

     return 0;

}