I need to put file into 2D array and then transpose it.

[darbear02]

Input File

3 7 2 9 0
1 8 4 6 5
0 2 7 4 3
6 1 9 5 8

then, input manually 5 digits: 24161
So, the array will have to be 5x5 in the end. Im a beginner at C++ and having a real tough time.
Program so far.

#include<iostream> 
#include<fstream>
#include<cstdlib>
#include<string>
#include<sstream>
#include<vector>
using namespace std;
ifstream inFile;
int  i, ID = 0, matrix[5][3], j, k;





int main()
{
	string b = "";
	string ifilename, line, ofilename;
	ifstream inFile, checkOutFile;
	ofstream outFile;
	char response;
	// Input file
	cout << "Please enter the name of the file you wish to open : ";
	cin >> ifilename;
	inFile.open(ifilename.c_str());
	if (inFile.fail())
	{
		cout << "The file " << ifilename << " was not successfully opened." << endl;
		cout << "Please check the path and name of the file. " << endl;
		exit(1);
	}
	else
	{
		cout << "The file is successfully opened." << endl;
	}
	// Output file
	cout << "Please enter the name of the file you wish to write : ";
	cin >> ofilename;
	checkOutFile.open(ofilename.c_str());
	if (!checkOutFile.fail())
	{
		cout << "A file " << ofilename << " exists.\nDo you want to continue and overwrite it? (y/n) : ";
		cin >> response;
		if (tolower(response) == 'n')
		{
			cout << "The existing file will not be overwritten. " << endl;
			exit(1);
		}
	}
	outFile.open(ofilename.c_str());
	if (outFile.fail())
	{
		cout << "The file " << ofilename << " was not successfully opened." << endl;
		cout << "Please check the path and name of the file. " << endl;
		exit(1);
	}
	else
	{
		cout << "The file is successfully opened." << endl;
	}
	// Copy file contents from inFile to outFile

	cout << "Please enter the last 5 digits in your student ID : ";
	cin >> ID;
	cout << " " << endl;
	cout << "The numbers from the input file with added last row." << endl;
	
	while (getline(inFile, line))
		cout << line << endl;
	
	
	stringstream ss;
	if (ID < 0)
		ID = -ID;
	ss << ID; //convert to individual numbers
	ss >> b;
	for (int i = 0; i < b.length(); ++i)
	{
		cout << b[i] << " ";
	}
	cout << " " << endl;
	cout << " " << endl;

	cout << "The transposed numbers." << endl;
	cout << " " << endl;



	inFile.close();
	outFile.close();
} // main