1 3 5

2 4 6

5 7 9

#include <iostream>
#include <conio.h>
#include <cmath>
#include <fstream>
#include <cstdlib>

using namespace std;

int main()
{
    char filename[50];
    ifstream matrixA;
    cin.getline(filename, 50);
    matrixA.open(filename);

    if (!matrixA. is_open())
    {
        exit (EXIT_FAILURE);
    }
    char word[50];
    matrixA >> word;
    while (matrixA.good())
    {
        cout << word << " ";
        matrixA >> word;
    }
    system("pause");
    return 0;
}

float elements[9];

ifstream reader(/*your file*/);

reader >> elements[0] >> elements[1] >> elements[2]; //read first line
reader >> elements[3] >> elements[4] >> elements[5]; //read second line
reader >> elements[6] >> elements[7] >> elements[8]; //read third line

reader.close();

ifstream reader(/*your file*/);

char buffer[300];

//1st line
std::getline(reader, buffer);
cout << buffer << endl;

//2nd line
std::getline(reader, buffer);
cout << buffer << endl;

//3nd line
std::getline(reader, buffer);
cout << buffer << endl;

reader.close();