//
// Summary of the libraries included here
// iostream - write to the screen
// fstream  - read/write to files
// stdlib.h - random number generator
// time.h   - functions related to the system clock
//
// To compile this program:
// g++ exercise01.cc -o exercise01
//
// And to run it:
// ./exercise01

#include <iostream>
#include <fstream>
#include <stdlib.h>
#include <time.h>

#include <math.h>

using namespace std;

int main(){
	
	cout << "This is how you write to screen in C++" << endl;

    //ofstream outFile("random_numbers.dat");
    
	// First of all we must initialise the random generator with a seed
    // In this example, we're using the system clock
	// srand(time(0));
    // but we can also have a fixed seed, as shown here
    // This ensures that we always get the same sequence of random numbers
    srand(123);

    // Number of random numbers to generate
    int N = 100;
    cout << "Number of random numbers: " << N << endl;
    
	// Now let's do a cycle and write randoms to the screen and/or file
    double random;
	for(int i=0; i<N; i++){
		random = rand()/((double)RAND_MAX + 1);
        // comment the line below if using a large N, otherwise you'll
        // end up with thousands (millions) of lines in the terminal
        cout << random << endl;
		//outFile << random << endl;
	}
    
    //outFile.close();
    
	return 0;
}