#ifndef _STOPWATCH_H_
#define _STOPWATCH_H_
#include <iostream>

class StopWatch
{
  private:
    int seconds_;

  public:
    StopWatch();
    StopWatch(int seconds);
    void Increment(int seconds = 1);
    void Reset();
    int GetSeconds() const;
    friend std::ostream& operator<<(std::ostream &os, const StopWatch &sw);
};
    

#endif // _STOPWATCH_H_