Reading Lines by Lines From a File to a Vector in C++ STL

// C++ Program to implement Reading
// In Lines From A File To A Vector
#include <bits/stdc++.h>

using namespace std;

int main()
{
    // Opening the file
    ifstream file("file.txt");

    vector<string> v;
    string str;

    // Read the next line from File until it reaches the
    // end.
    while (file >> str) {
        // Now keep reading next line
        // and push it in vector function until end of file
        v.push_back(str);
    }

    // Printing each new line separately
    copy(v.begin(), v.end(),
         ostream_iterator<string>(cout, "\n"));

    return 0;
}

// C++ Program to read lines
// From A File To A Vector
#include <fstream>
#include <iostream>
#include <string>
#include <vector>

using namespace std;
int main()
{

    fstream myfile;

    // open file
    myfile.open("file1.txt");
    vector<string> g1;

    if (myfile.is_open()) {
        // checking if the file is open
        string str;

        // read data from file object
        // and put it into string.
        while (getline(myfile, str)) {
            g1.push_back(str);
        }
        // close the file object.
        myfile.close();
    }
    cout << "\nVector elements are: " << endl;
    for (int i = 0; i < g1.size(); i++) {
        cout << g1[i] << endl;
    }
}