Pta:6-71 clock simulation

One Time class , Data members sometimes 、 branch 、 second . Request analog stopwatch , One second at a time , full 60 Second carry , The second starts counting from zero . full 60 Fractional carry , Minutes are counted from zero . When the output 、 The value of minutes and seconds .（ Use overload ++ Operator implementation ）

Time class definition ：
class MyTime
Sample test procedure ：

/*  Please fill in the answer here  */

int main()
{
    
	MyTime t1,t2(23,59,59),t3;
	cin>>t3;
	++t1;
	cout<<t1<<endl;
	++t2;
	cout<<t2<<endl;
	++t3;
	cout<<t3<<endl;
	return 0;
}

sample input ：
12 35 59
sample output ：
0:0:1
0:0:0
12:36:0

The main contents are ： Constructors 、 heavy load ++ And input / output operators 、this The pointer

#include<iostream>
using namespace std;
class MyTime
{
    
	int hour;
	int mintue;
	int second;
	public:
		MyTime()
		{
    
			hour=0;
			mintue=0;
			second=0;
		}
		MyTime(int a,int b,int c)
		{
    
			hour=a;
			mintue=b;
			second=c;
		}
		MyTime operator ++()
		{
    
			this->second++;
			if(this->second>=60)
			{
    
				this->second=0;
				this->mintue++;
			}
			if(this->mintue>=60)
			{
    
				this->mintue=0;
				this->hour++;
			}
			if(this->hour>=24)
			{
    
				this->hour=0;
			}
		}
		friend istream& operator >>(istream&in,MyTime &t)
		{
    
			in>>t.hour>>t.mintue>>t.second;
			return in;
		}
		friend ostream& operator <<(ostream&os,MyTime &t)
		{
    
			os<<t.hour<<":"<<t.mintue<<":"<<t.second;
		}
};