GPA Calculator with C++ Tuples

tupleTest.cpp

#include <iostream>
#include <vector>
#include <string>
#include <tuple>

using namespace std;

int main()
{
  vector<tuple<string, unsigned short, unsigned short, string, double>> v2;
             // course name, course #, credits, geade, scale value
       
    v2.push_back(make_tuple("Islamic Jurisprudence", 454, 3, "A", 4));
    v2.push_back(make_tuple("Judicial Review", 439, 3, "A", 4));
    v2.push_back(make_tuple("Competition Law", 157, 3, "A", 4));
    v2.push_back(make_tuple("Financial Transactions", 433, 3, "B+", 3.3));
    v2.push_back(make_tuple("Advocacy", 457, 2, "A", 4));
    v2.push_back(make_tuple("Personal Properties", 451, 3, "A", 4));
    
    double gradePoints = 0.0;
    int totalUnits = 0;

    for(auto ix = v2.begin(); ix != v2.end(); ++ix)
    {
        double initialPoint = 0;

        cout << get<0>(*ix) << " "
             << get<1>(*ix) << " "
             << get<2>(*ix) << " "
             << get<3>(*ix) << " " 
             << get<4>(*ix) << endl;
            
             initialPoint = get<4>(*ix) * get<2>(*ix);
             gradePoints += initialPoint;
             totalUnits += get<2>(*ix);
    }
    
    cout.precision(4);
    cout << "Total Units: " << totalUnits << endl;
    cout << "Grad Points: " << gradePoints << endl;    
    cout << "GPA (gradePoints/totalUnits) = " << gradePoints / totalUnits << endl;
    
    return 0;
}