assignment 2 update

#include<cstdio>
#include <ctype.h>
#include <map>
#include <string>
#include <iostream>
#include <stack>
#include <fstream>



using namespace std;



map<char, int> charPriorty;
stack<char> s;

int infixLength(string infix){

    int i=0;
    int j=0;

    while(infix[i] != '\0'){

        if(infix[i]== '(' || infix[i] == ')'){

            i++;
            continue;
        }


        i++;

        j++;
    }


    return  j;
}

void postfix() {

    charPriorty['+'] = 1;
    charPriorty['-'] = 1;
    charPriorty['*'] = 2;
    charPriorty['/'] = 2;

    string infix;

    cin >> infix;

    char  postfixString[100];
    int j=0;

    int i = 0;


    while (infix[i] != '\0') {

        if (infix[i] >= 'a' && infix[i] <= 'z') {

            cout << infix[i] << " ";
            postfixString[j] = infix[i];
            j++;
        } else if (infix[i] == '(') {

            s.push(infix[i]);
        } else if (infix[i] == ')') {

            while (s.top() != '(') {

                cout << s.top() << " ";
                postfixString[j] = s.top();
                j++;
                s.pop();
            }
            s.pop();

        } else if (s.size() == 0) {
            s.push(infix[i]);
        } else if ((infix[i] == '+' || infix[i] == '-') and (s.top() == '*' || s.top() == '/')) {
            while (s.size() != 0) {
                cout << s.top() << " ";
                postfixString[j] = s.top();
                j++;
                s.pop();
            }

            s.push(infix[i]);

        } else if ( charPriorty[infix[i]] ==charPriorty[s.top()]) {

            cout << s.top() << " ";
            postfixString[j] = s.top();
            j++;
            s.pop();
            s.push(infix[i]);

        } else{

            s.push(infix[i]);
        }

        i++;
    }

    while(!s.empty()){

        cout<<s.top()<<" ";
        postfixString[j] = s.top();
        j++;
        s.pop();

    }

    postfixString[j] = '\0';

    cout<<"\n"<<postfixString<<endl;

}



void prefix() {

    charPriorty['+'] = 1;
    charPriorty['-'] = 1;
    charPriorty['*'] = 2;
    charPriorty['/'] = 2;

    string prefix;

    cin >> prefix;


    int len = prefix.size();

    int i=0;
    int j = len-1;
    while(i<j){

        char temp = prefix[i];
        prefix[i] = prefix[j];
        prefix[j] = temp;
        i++;
        j--;

    }


     i = 0;

    j=0;

    char  prefixString[100];

    while (prefix[i] != '\0') {

        if (prefix[i] >= 'a' && prefix[i] <= 'z') {

            //cout << prefix[i] << " ";
            prefixString[j] =prefix[i];
            j++;
        } else if (prefix[i] == '(') {

            s.push(prefix[i]);
        } else if (prefix[i] == ')') {

            while (s.top() != '(') {

                //cout << s.top() << " ";
                prefixString[j] = s.top();
                j++;
                s.pop();
            }
            s.pop();

        } else if (s.size() == 0) {
            s.push(prefix[i]);
        } else if ((prefix[i] == '+' || prefix[i] == '-') and (s.top() == '*' || s.top() == '/')) {
            while (s.size() != 0) {
                //cout << s.top() << " ";

                prefixString[j] = s.top();
                j++;

                s.pop();


            }

            s.push(prefix[i]);

        } else if ( charPriorty[prefix[i]] ==charPriorty[s.top()]) {

            //cout << s.top() << " ";

            prefixString[j] = s.top();
            j++;

            s.pop();
            s.push(prefix[i]);

        } else{

            s.push(prefix[i]);
        }

        i++;
    }

    while(!s.empty()){

       // cout<<s.top()<<" ";
        prefixString[j] = s.top();
        j++;

        s.pop();

    }

    prefixString[j] = '\0';

     i=0;

     j = j-1;

    while(i<j){

        char temp = prefixString[i];
        prefixString[i] = prefixString[j];
        prefixString[j] = temp;
        i++;
        j--;

    }

    cout<<prefixString<<endl;


}




int main()
{


    postfix();


   //prefix();




}