Girilen Yılın Takvimini Oluşturan Program

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/*This program prints a calendar for a year specified. The user enters a
     year for the calendar and the programs automatically prints the calendar
     in text format.
     The codes are: day_code (0 = Sun, 1 = Mon, etc.)
                    leap_year (0 = no leap year, 1 = leap year)   */
#include <stdio.h>
#include <stdlib.h>       
#define TRUE 1
#define FALSE 0
int get_day_code (int year);
int get_leap_year (int year);
void print_calendar (FILE *fout, int year, int day_code, int leap_year);
int get_year (void);
main()
{
 
   int year, day_code, leap_year;
 
   FILE *fout;
 
   fout = fopen ("calendar.txt", "w");
 
   year = get_year();                          
 
   day_code = get_day_code (year);
 
   leap_year = get_leap_year (year);
 
   print_calendar(fout, year, day_code, leap_year);
 
   printf("Open up \'calendar.txt\' to see your calendar...\n");
 
   system("pause");
    return (0);  
}
   
int get_year (void)
{
int year;
printf ("Enter a year: ");
scanf ("%d", &year);
return year;
}            
int get_day_code (int year)
{
int day_code;
int x1, x2, x3;
x1 = (year - 1.)/ 4.0;
x2 = (year - 1.)/ 100.;
x3 = (year - 1.)/ 400.;
day_code = (year + x1 - x2 + x3) %7;
return day_code;
}            
int get_leap_year (int year)
{

//if((year% 4) == 0 );
if(year% 4==0 && year%100 != 0 || year%400==0)
   return TRUE;
   else return FALSE;

}
void print_calendar (FILE *fout, int year, int day_code, int leap_year) //function header
{
int  days_in_month,     /* number of days in month currently 
                                                     being printed */
         day,       /* counter for day of month */
         month;     /* month = 1 is Jan, month = 2 is Feb, etc. */
     fprintf (fout,"                   %d", year);
     for ( month = 1; month <= 12; month++ ) {
          switch ( month ) { /* print name and set days_in_month */
          case 1:
               fprintf(fout,"\n\nJanuary" );
               days_in_month = 31;
               break;
          case 2:
               fprintf(fout,"\n\nFebruary" );
               days_in_month = leap_year ? 29 : 28;
               break;
          case 3:
               fprintf(fout, "\n\nMarch" );
               days_in_month = 31;
               break;
          case 4:
               fprintf(fout,"\n\nApril" );
               days_in_month = 30;
               break;
          case 5:
               fprintf(fout,"\n\nMay" );
               days_in_month = 31;
               break;
          case 6:
               fprintf(fout,"\n\nJune" );
               days_in_month = 30;
               break;
          case 7:
               fprintf(fout,"\n\nJuly" );
               days_in_month = 31;
               break;
          case 8:
               fprintf(fout,"\n\nAugust" );
               days_in_month = 31;
               break;
          case 9:
               fprintf(fout,"\n\nSeptember" );
               days_in_month = 30;
               break;
          case 10:
               fprintf(fout,"\n\nOctober" );
               days_in_month = 31;
               break;
          case 11:
               fprintf(fout,"\n\nNovember" );
               days_in_month = 30;
               break;
          case 12:
               fprintf(fout,"\n\nDecember" );
               days_in_month = 31;
               break;
          }
          fprintf(fout,"\n\nSun  Mon  Tue  Wed  Thu  Fri  Sat\n" );
          /* advance printer to correct position for first date */
          for ( day = 1; day <= 1 + day_code * 5; day++ )
               fprintf(fout," " );
          /* print the dates for one month */
          for ( day = 1; day <= days_in_month; day++ ) {
               fprintf(fout,"%2d", day );
               if ( ( day + day_code ) % 7 > 0 ) /* before Sat? */
                    /* move to next day in same week */
                    fprintf(fout,"   " );
               else  /* skip to next line to start with Sun */
                    fprintf(fout, "\n " );
          }
          /* set day_code for next month to begin */
          day_code = ( day_code + days_in_month ) % 7;
     }
}

Programın çıktısı:

şuanda masaüstünde "calendar.txt" dosyası oluşturuldu. entera bastığımızda bu görsel kapanacak ve yazdığımız 2013 yılının Takvimini dosyaya yazacak.

takvimin bir kısmını size göstereyim. içerik türkçe fakat programın içinden yazıları silip türkçesini yazmanız yeterli olacaktır.

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