Question

Write a C++ program to display workers schedule for a company. To accomplish this (1) Write a struct Time with attributes (at least) : hours, minutes and seconds. Add other functions or attributes you need to get the job done (2) Write a class Schedule with attributes : Day of week, start_time, end_time and activity. Schedule should have at least (a) Display to display the schedule (b) Length to return the duration of the schedule (ie end_time - start_time), (c) ReadSchedule to read schedule from user (2b) Your program must check that only appropriate numbers are entered for Time in ReadSchedule (default value for hour/minute and second is 0) (2c) Your program should indicate error when end_time < start_time. (3) You should store the schedules in a vector (4) Create the struct Time and class Schedule in a file named schedule.h which you must include in main.cpp (5) Your program should produce EXACTLY the same output as the enclosed program (run sample.exe to see the output). Feel free to use the skeletal program I have provided in the enclosed zip file.

Below are the extracted files for main.cpp and schedule.h that i need to work them.

main.cpp

void DisplaySchedule(vector<Schedule> schs)
{
   cout<<"-----------------------------CURRENT SCHEDULE----------------------------------------------------\n\n";
   for(int i=0;i<schs.size();i++)
   {
       cout<<"----------------------------------------------------------------------------------\n";
       cout<<(i+1)<<".";
       schs[i].Display();      
   }  
   cout<<endl;
}
/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int main(int argc, char** argv) {
//FILL IN THE CODES
   return 0;
}

schedule.h

#pragma once
#include <iostream>
#include <iomanip>
#include <string>

using namespace std;

struct Time
{
   int Hour;
   int Minute;
   int Second;
  
   Time():Time(0,0,0){   } //default constructor - "calls" constructor with parameters
  
   Time(int hr, int min, int sec) //constructor with parameters
   {
       Hour = hr;
       Minute = min;
       Second = sec;
   };
  
   //read time from user
   void ReadTime()
   {
      
   }
   //show time
   void Show()
   {
       cout<<Hour<<":"<<Minute<<":"<<Second;
   }
};

Answer 1

Schedule.cpp

#include<iostream>
#include<string>

using namespace std;

struct time {
   int hour;
   int minute;
   int second;
};

struct time *duration(struct time *end, struct time*start) { // returns duration between start and end in a time form
   struct time *t = new struct time();
   t->second = end->second-start->second;
   int minute_borrow = 0;
   if(t->second < 0) {
       t->second+=60;
       minute_borrow=1;
   }
   int hour_borrow=0;
   t->minute = end->minute-minute_borrow-start->minute;
   if(t->minute<0) {
       t->minute +=60;
       hour_borrow=1;
   }
   t->hour=end->hour-hour_borrow-start->hour;
}

string tostring(struct time * t) {
   return to_string(t->hour)+ ":"+to_string(t->minute)+ ":"+to_string(t->second);
}

class Schedule {
   private:
   int day_of_week; // 0=sunday & 6=saturday
   struct time* start_time;
   struct time* end_time;
   string activity;
   public:
   Schedule(int dweek,struct time* start,struct time* end,string act) {
       day_of_week=dweek;
       start_time=start;
       end_time=end;
       activity=act;
   }
   void Display() {
       string weekdayname;
       switch(day_of_week) {
           case 0:
           weekdayname="Sunday";
           break;
           case 1:
           weekdayname="Monday";
           break;
           case 2:
           weekdayname="Tuesday";
           break;
           case 3:
           weekdayname="Wednesday";
           break;
           case 4:
           weekdayname="Thursday";
           break;
           case 5:
           weekdayname="Friday";
           break;
           case 6:
           weekdayname="Saturday";
           break;
       }
       cout<<weekdayname<<" "<<tostring(start_time)<<" "<<tostring(end_time)<<" "<<activity<<endl;
   }
   struct time *Length() {
       return duration(end_time, start_time);
   }
   static Schedule *ReadSchedule() {
       int dweek; // 0=sunday & 6=saturday
       struct time* start= new struct time();
       struct time* end= new struct time();
       string act;
       cout<<"Enter a schedule entry:"<<endl;
       // prompt for "day of week"
       cout<<"Enter day of week[0=sunday, 6=saturday]: ";
       cin>>dweek;
      
       // prompt for start time
       cout<<"Enter start time:"<<endl;
       cout<<"hour: ";
       cin>>start->hour;
       cout<<"minute: ";
       cin>>start->minute;
       cout<<"second: ";
       cin>>start->second;
      
       // prompt for end time
       cout<<"Enter end time:"<<endl;
       cout<<"hour: ";
       cin>>end->hour;
       cout<<"minute: ";
       cin>>end->minute;
       cout<<"second: ";
       cin>>end->second;
      
       // prompt for activity
       cout<<"Enter activity: ";
       cin>>act;
       return new Schedule(dweek, start, end, act);
   }
};
int main() {
   Schedule *s = Schedule::ReadSchedule(); // reading a schedule from console
   s->Display(); // displying the schedule
   cout<<"Duration is "<<tostring(s->Length());// displaing the schedule length
   return 0;
}
  

output

Enter a schedule entry:
Enter day of week[0=sunday, 6=saturday]: 1
Enter start time:
hour: 10
minute: 30
second: 35
Enter end time:
hour: 11
minute: 5
second: 25
Enter activity: test
Monday 10:30:35 11:5:25 test
Duration is 0:34:50

Explanation

How to calculate duration:

IF we want duration in second instead of time format the formula will be