// demonstrates usage of time function
// Mikhail Nesterenko
// 9/16/2009

#include <iostream>
#include <ctime>

using namespace std;

int main(){
// prints out current time
int currentTime = time(NULL);
cout << currentTime << " seconds has passed since 00:00 hours of January 1, 1970\n";

// measures time it take user to intput an integer
int int1;
do{
int from = time(NULL);
cout << "Enter positive integer (0 to quit): ";
cin >> int1;
int to = time(NULL);
cout << "It took you "
<< (to - from) << " seconds to enter "
<< int1 << endl;

}while (int1 > 0);

}