Programming.

#include <cstdlib>
#include <iostream>
using namespace std;
int main()
{
    int random_integer = rand();
    cout << random_integer << endl;
}
The value of RAND_MAX varies between compilers and can be as low as 32767, which would give a range from 0 to 32767 for rand(). To find out the value of RAND_MAX for your compiler run the following small piece of code:

#include <cstdlib>
#include <iostream>
using namespace std;
int main()
{
    cout << "The value of RAND_MAX is " <<  RAND_MAX << endl;
}
srand()

#include <cstdlib>
#include <ctime>
#include <iostream>
using namespace std;
int main()
{
    srand((unsigned)time(0));
    int random_integer = rand();
    cout << random_integer << endl;
}

#include <cstdlib>
#include <ctime>
#include <iostream>
using namespace std;
int main()
{
    srand((unsigned)time(0));
    int random_integer;
    for(int index=0; index<20; index++){
        random_integer = (rand()%10)+1;
        cout << random_integer << endl;
    }
}

#include <iostream>
#include <ctime>
#include <cstdlib>
using namespace std;
int main()
{
    srand((unsigned)time(0));
    int random_integer;
    int lowest=1, highest=10;
    int range=(highest-lowest)+1;
    for(int index=0; index<20; index++){
        random_integer = lowest+int(range*rand()/(RAND_MAX + 1.0));
        cout << random_integer << endl;
    }
}