A few questions about my project

[InvolvedOak]

Hello all. I am new to C++ programming and using Microsoft Visual Studio as my IDE. My first problem is I am unable to find the "Win32" template under C++ in the Microsoft Visual Studio 2017 Community Edition that is required of me to complete this project. With that being said, I went ahead and selected a "Empty Project" template to just begin coding so I have at least something. My second question is I am having trouble running the code from the command line. I am unsure if it is a logic error somewhere or if I need to get the Win32 template in order for this particular project to work.

The project requires me to read in student ID numbers and then a series of test scores that will be averaged after all of the data has been read in. I will display my code below in order to see if I am going about this correctly and how I can get the Win32 template downloaded so I can actually run my code.

#include <fstream>
#include <iostream>
#include <iomanip>
#include <string>

using namespace std;

ifstream in ("data1.txt");
ofstream out;

 
const int rows = 50;
const int cols = 5;



void read_input(ifstream &in, float IDs[], float scores[][cols], int &num_students) 
{

	float studentID;
	float grade1, grade2, grade3, grade4;

	while (true) {
		in >> studentID;
		if (studentID < 0) {return;}
		in >> grade1;
		in >> grade2;
		in >> grade3;
		in >> grade4;
		IDs[num_students] = studentID;
		scores[num_students][0] = grade1;
		scores[num_students][1] = grade2;
		scores[num_students][2] = grade3;
		scores[num_students][3] = grade4;
		num_students++;
	}
}

void bubble_sort(int A[rows][cols], int size, int keyindex)
{
	int i, j;
	int buff1, buff2, buff3;
	for (i = 0; i < (size - 1); i++)
		for (j = 0; j < (size - i - 1); j++)
			if (A[j][keyindex] <  A[j + 1][keyindex])
			{
				buff1 = A[j][0];
				buff2 = A[j][1];
				buff3 = A[j][2];
				A[j][0] = A[j + 1][0];
				A[j][1] = A[j + 1][1];
				A[j][2] = A[j + 1][2];
				A[j + 1][0] = buff1;
				A[j + 1][1] = buff2;
				A[j + 1][2] = buff3;
			}
}

void print_studentInfo(ofstream &outfile, float IDs[], float scores [][5], int &num_students) 
{ 
	out << "Student ID  Test 1  Test 2  Test 3  Test 4" << endl;  
	out << "----------  ------  ------  ------  ------" << endl; 
	for (int i = 0; i  <  num_students; i++) 
	{ 
		outfile << setw(7) << IDs [i] << "   " << setw(7) << scores[i][1] << "   " << setw(7) << scores[i][2] << "   " << setw(7) << scores[i][3] << "   " << setw(7) << scores[i][4] << "   " << setw(7) << scores[i][5] << endl;
	}
		out << endl << endl << endl; 
}

int main()
{
	float IDs[50];
	float scores[rows][cols];
	int num_students = 0;
	read_input(in, IDs, scores, num_students);
	print_studentInfo(out, IDs, scores, num_students);
	//bubble_sort(student_records, num_students, 1);
	return 0;

}

I am just trying to see if this code will actually read in the numbers and put them into the array and then display them.