Twitter Challenge

#include <map>
#include <set>
#include <list>
#include <cmath>
#include <ctime>
#include <deque>
#include <queue>
#include <stack>
#include <string>
#include <bitset>
#include <cstdio>
#include <limits>
#include <vector>
#include <climits>
#include <cstring>
#include <cstdlib>
#include <fstream>
#include <numeric>
#include <sstream>
#include <iostream>
#include <algorithm>
#include <unordered_map>

using namespace std;

int main() {
    //Initialize & Declare Variables As Needed
    string input = " ";
    bool inputover = false;
    deque<char> str;
    deque<char> cmd;

    //Cycle until no more input
    while(!inputover)
    {
        //Get input
        getline(cin,input);

        //Prepare for next input
        cin.clear();

        //Check if end of input
        if(input.empty())
        {
            break;
        }

        //-----------------------------------------------------------
        //Start individual input code below here
        //-----------------------------------------------------------

        //Iterate though String
        while(input.length() > 0)
        {
            //Detect slash to indicate instruction
            if(input[0]=='/')
            {
                input.erase(input.begin());
                //Iterate through remaining string and split expression from Instruction
                while(input.length() > 0)
                {
                    cmd.push_back(input[0]);
                    input.erase(input.begin());
                }
            }
            else
            {
                str.push_back(input[0]);
                input.erase(input.begin());
            }
        }


        while(!cmd.empty())
        {

            if(cmd.front() == 'R')
            {
                stack<char> temp;
                while(!str.empty())
                {
                    if(str.front() == '(')
                    {
                        temp.push(')');
                    }
                    else if(str.front() == ')')
                    {
                        temp.push('(');
                    }
                    else
                    {
                        temp.push(str.front());
                    }
                    str.pop_front();
                }
                while(!temp.empty())
                {
                    str.push_back(temp.top());
                    temp.pop();
                }

            }
            if(cmd.front() =='S')
            {
                if (str.[0]
            }
            cmd.pop_front();
        }

        //Display Expression
        //cout << "String" << endl;
        for (int i = 0; i < str.size(); i++)
        {
            cout << str[i];
        }
        cout << endl;

        /*
        //Display Instructions
        cout << "Command" << endl;
        for (int i = 0; i < cmd.size(); i++)
        {
            cout << cmd[i];
        }
        cout << endl;
        */



        str.clear();
        cmd.clear();
    }

    return 0;
}