// TreeCalcTest.cpp
// CS 2150: Tree calculator test program
// Your code MUST work with an UNMODIFIED version of this test program
// We will be using this program to test your implementations

#include <iostream>
#include "TreeCalc.h"

using namespace std;

int main() {
    TreeCalc tester;
    // read expression input from the user
    // print out the output in postorder, in order, preorder forms
    // calculate the result of the expression tree
    cout << "The result of the expression tree is " << tester.calculate() << endl;
    return 0;