#include <unistd.h>
#include <sys/times.h>
#include <sys/types.h>

#include <stdlib.h> 


class Time
{
public:
    Time():mTicksPerSec(sysconf(_SC_CLK_TCK)), mRealTime(0){mTmsTime.tms_utime=0; mTmsTime.tms_stime=0;}
    
    void getCurrentTime() {mRealTime = times(&mTmsTime);};
    Time& subtract(const Time& Subtrahent);
    Time operator-(const Time& Subtrahent) const;
    void print();
private:
    long mRealTime;
    struct tms mTmsTime;
    long mTicksPerSec;
};



class StopWatch
{
public:
     StopWatch();
     void start();
     void stopRound();
     void stop();

private:
    Time mStartTime;
    Time mStopTime;
    Time mLastStopTime;
    int mRounds;
};