pvjc19cv4/program.c
2019-03-14 22:13:58 +01:00

33 lines
1.1 KiB
C

#include <stdio.h>
#include <time.h>
int main()
{
int d = 0;
int m = 0;
int y = 0;
scanf("%d.%d.%d", &d, &m, &y);
//check date validness
if(!(m>=1 && m<=12) && !(y>=0 && y<=9999) && !(((d>=1 && d<=31) && (m==1 || m==3 || m==5 || m==7 || m==8 || m==10 || m==12)) || ((d>=1 && d<=30) && m==4 || m==6 || m==9 || m==11) ||(d==29 && m==2 && (y%400==0 ||(y%4==0 && y%100!=0))) || ((d>=1 && d<=28) && m==2))){
puts("Nespravny datum\n");
return 0;
}
//setting date
struct tm t = { .tm_year=y-1900, .tm_mon=m-1, .tm_mday=d };
//adding week to the date
t.tm_mday += 7;
mktime(&t);
//output data
if(t.tm_mday <10 && t.tm_mon+1 < 10)
printf(" %d.0%d.%d\n\n", t.tm_mday, t.tm_mon+1, t.tm_year+1900);
else if(t.tm_mday < 10)
printf(" %d.%d.%d\n\n", t.tm_mday, t.tm_mon+1, t.tm_year+1900);
else if(t.tm_mon+1 < 10)
printf("%d.0%d.%d\n\n", t.tm_mday, t.tm_mon+1, t.tm_year+1900);
else
printf("%d.%d.%d\n\n", t.tm_mday, t.tm_mon+1, t.tm_year+1900);
}