Question

IN C++
In a previous assignment you wrote pseudo code for the calculation of the days into a year given the date.

Write a function that returns an int. It takes three parameters , all int(s),

int DaysIntoYear ( int Year, int Month, int day);

The return value is the number of days in the year from January 1 to the specified date.  

Year is included so you can determine if this is a leap year ( see below).  

If it is a leap year February will have 29 days not the typical 28.

I suggest using several lower level functions to break up the work.  

Please use this enum :

enum daysInMonth { Jan = 31, Feb = 28, Mar = 31, Apr = 30, May = 31, Jun = 30, Jul = 31, Aug = 31, Sep = 30, Oct = 31, Nov = 30, Dec = 31 };

Typical code that uses the enum elements would be :

switch (month) case 1 : return Jan; // etc.

at least one switch statement in your code.  

Advanced coders: Please do not use arrays in this solution. ( next time )

Answer 1

SOURCE CODE:

#include<iostream>
using namespace std;
enum daysInMonth {Jan=31,Feb=28,Mar=31,Apr=30,May=31,Jun=30,Jul=31,Aug=31,
                   Sep=30,Oct=31,Nov=30,Dec=31}; //enum that stores days in the month
int getDaysInMonth(int Month) //getDaysInMonth() function for getting days in the respecitve month
{
   switch(Month) //switch-case block
   {
       case 1: //case 1 then returning Jan
           return Jan;
       case 2: //case 2 then returning Feb
           return Feb;
       case 3: //case 3 then returning Mar
           return Mar;
       case 4: //case 4 then returning Apr
           return Apr;
       case 5: //case 5 then returning May
           return May;
       case 6: //case 6 then returning Jun
           return Jun;
       case 7: //case 7 then returning Jul
           return Jul;
       case 8: //case 8 then returning Aug
           return Aug;
       case 9: //case 9 then returning Sep
           return Sep;
       case 10: //case 10 then returning Oct
           return Oct;
       case 11: //case 11 then returning Nov
           return Nov;
       case 12: //case 12 then returning Dec
           return Dec;                                          
   }
}  
int checkLeapYear(int Year) //function for checking a year is leap or not
{
   if(((Year%4==0) && (Year%100!=0)) || (Year%400==0)) //condition for the year to become leap
   {
       return 1; //returning 1
   }
   else
       return 0; //returning 2
}              
int DaysIntoYear(int Year,int Month,int day)
{
   int Count=0; //Count variable to store no of days
   for(int i=1;i<Month;i++) //iterating upto given Month-1
   {
       if(i==1) //if 1 then adding days of Jan to Count
       {
           Count=Count+getDaysInMonth(i);
       }
       else if(i==2) //if 2 then adding days of Feb to Count
       {
           if(checkLeapYear(Year)==1) //checking year is leap or not
           {
               Count=Count+getDaysInMonth(i)+1;
           }
           else
               Count=Count+getDaysInMonth(i);  
       }
       else if(i==3) //if 3 then adding days of Mar to Count
       {
           Count=Count+getDaysInMonth(i);
       }
       else if(i==4) //if 4 then adding days of Apr to Count
       {
           Count=Count+getDaysInMonth(i);
       }
       else if(i==5) //if 5 then adding days of May to Count
       {
           Count=Count+getDaysInMonth(i);
       }
       else if(i==6) //if 6 then adding days of Jun to Count
       {
           Count=Count+getDaysInMonth(i);
       }
       else if(i==7) //if 7 then adding days of Jul to Count
       {
           Count=Count+getDaysInMonth(i);
       }
       else if(i==8) //if 8 then adding days of Aug to Count
       {
           Count=Count+getDaysInMonth(i);
       }
       else if(i==9) //if 9 then adding days of Sep to Count
       {
           Count=Count+getDaysInMonth(i);
       }
       else if(i==10) //if 10 then adding days of Oct to Count
       {
           Count=Count+getDaysInMonth(i);
       }
       else if(i==11) //if 11   then adding days of Nov to Count
       {
           Count=Count+getDaysInMonth(i);
       }
       else if(i==12) //if 12 then adding days of Dec to Count
       {
           Count=Count+getDaysInMonth(i);
       }
   }
   Count=Count+(day-1); //adding days of the current month to count
   return Count; //returning count
}                  
int main()
{
   int Month,day,Year;
   cout<<"Enter Year: ";
   cin>>Year; //reading Year from user
   cout<<"Enter Month: ";
   cin>>Month; //reading Month from user
   cout<<"Enter Day: ";
   cin>>day; //reading day from user
   int NoOfDays=DaysIntoYear(Year,Month,day); //calling DaysIntoYear() function
   cout<<"No of days upto the date "<<Year<<"/"<<Month<<"/"<<day<<" are: "<<NoOfDays<<endl; //displaying no of days
}                  

OUTPUT: