Question

please help ASAP need to complete soon

needs to be done in C programing

void countDays (unsigned month, unsigned day): Given a month and day, print a message based on the following conditions (which we would suggest testing in order). Don't get overwhelmed by the number of conditions--the function gets a bit long, but the function body shouldn't be that complex: • If the month is invalid, print Invalid month: followed by the month argument (for example, Invalid month 13) 0 A valid month satisfies the condition 1 s month s 12, so an invalid month falls outside that range • If the month is valid but the day in the month is not, print Invalid day _ in month _, where the _ symbols are replaced by the month and day, respectively (for example, Invalid day 32 in month 3) • The function template below contains an array, nDays, that lists the number of days in each month this year. You can use this array to help you determine if a day is valid for a given month o Remember, arrays are zero-indexed, so nDays[0] is the number of days in January (month 1), nDays[1] is the number of days in February (month 2), and so on • If the date comes before spring break started (March 6 was the last day of in-person classes), print University open • If the date was during spring break (March 7 through 17), print Spring break If the date is after spring break, calculate and print the number of days (1) since the last in-person class and (2) since remote learning started on March 18. o Print Days since last class: and Days of remote learning: before the two numbers you calculate o If the date is in March, you only have to calculate the number of days since March 6 and 17, respectively o If the date is after March, use the nDays array to help you count the number of days in each completed month. Just don't count all 31 days in March--the university was still open for the first 6 days of March

Answer 1

Below is whole program with explanation in comment:

#include<stdio.h> // header file for standard input and output
#include<conio.h> // header file for text user interface
#include<time.h> // header file that contains time and date function

/* isLeapYear() function is used to check given year is leap year or not */

int isLeapYear(int year)
{
   if (((year % 4 == 0) && (year % 100!= 0)) || (year%400 == 0))
return 1;
else
return 0;
}

/* Required Function as per given information */

void countDays(unsigned int month,unsigned int day)
{

/* days in each month with consider year is non-leap year */
   int nDays[]={31,28,31,30,31,30,31,31,30,31,30,31};   
   int i,day1,day2;

/*  time_t datatype is a data type in the ISO C library defined for storing system time values*/
   time_t s;

/*struct tm* is use to represent the local time */
   struct tm* current_time;

/* time(NULL) returns the number of seconds elapsed since 00:00:00 hours */
   s=time(NULL);
  

/* localtime function converts a calendar time and returns a pointer to a structure containing local time */
   current_time=localtime(&s);

/* adding 1900 because this value gives us the number of years starting from 1900 */
   int year=current_time->tm_year+1900;
  

/* condition to set february days */

   if(isLeapYear(year)==1)
       nDays[1]=29;

  

/* condition for checking valid month or not */
   if(month<0 || month>12)
   {
       printf("Invalid month %u",month);
   }
   else
   {

/* condition for checking valid day or not */
       if(day<0 || day>nDays[month-1])
           printf("Invalid day %u in month %u",day,month);
       else
       {

           if(month<=3 && day<=6) ////* condition for before break */
           {
               printf("University open");
           }
           else if(month==3 && (day>6 && day<18)) // condition for spring break  
           {
               printf("Spring break");
           }
           else // after spring break
           {
               day1=nDays[0]+nDays[1]+6; // calculating day before spring
              
              
               if(month==3)
                   day2=day-17;
               else
                   day2=14;
               for(i=4;i<=month;i++)
               {
                   if(i==month)
                   {
                       day2+=day;
                       break;
                   }
                   day2+=nDays[i];
               }
                  
               printf("Days since last class: %d and Days of remote learning: %d",day1,day2);
           }
          
       }
   }  
}

int main()
{
   unsigned int month,day;
   printf("Enter Month: ");
   scanf("%u",&month);
   printf("Enter Day: ");
   scanf("%u",&day);
   countDays(month,day);
   return 0;
}