example01.cpp
-----------------------------------------------
#include <cstdlib>
#include <iostream>
#include <time.h>
using namespace std;

int main()
{
    int i, r;

    srand(time(0));
    for (int i = 0; i < 5; i++){
                r = rand();
                cout << r << "\t" << r%10 << endl;
    }
    return 0;
}