pvjc22/a1/program.c
2022-03-27 19:37:26 +02:00

63 lines
1.2 KiB
C

#include<stdio.h>
#include<string.h>
#include<time.h>
#include<stdlib.h>
int main(){
char Dnes_Datum[300];
int ch=getchar(),counter=0;
int id=0;
for(id=0;ch!=EOF;id++){
if(ch=='.'){
ch=' ';
}
Dnes_Datum[id]=ch;
if(ch=='\n'){
counter++;
}
ch=getchar();
if(Dnes_Datum[id]=='\n'&&ch=='\n'){
break;
}
}
Dnes_datum[id]='\0';
for(int i=0;i<strlen(Dnes_datum);i++){
if((Dnes_Datum[i]>='0'&&Dnes_Datum[i]<='9')||Dnes_Datum[i]==' ');
else {
printf("Neplatny datum.\n");
return EXIT_SUCCESS;
}
}
char *start=Dnes_Datum, *end=NULL;
time_t t=time(NULL);
for(int idx=0;idx<counter;idx++){
struct tm *D_D;
struct tm *NW_D;
D_D = localtime(&t);
D_D->tm_mday=strtol(start,&end,10);
start=end;
D_D->tm_mon=strtol(start,&end,10)-1;
start=end;
D_D->tm_year=strtol(start,&end,10)-1900;
start=end+1;
time_t nex_week=mktime(D_D)+604800;
NW_D=localtime(&nex_week);
printf("%d.%d.%d\n\n",NW_D->tm_mday, NW_D->tm_mon+1,NW_D->tm_year+1900);
}
return EXIT_SUCCESS;
}