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du3

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Oleksandr Hryshchenko 2021-03-10 00:05:48 +01:00
parent 79e7bf137f
commit 469f204879
1 changed files with 61 additions and 0 deletions
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du3/program.c Normal file
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#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
int main() {
char input[10];
char numbers[4];
int date[3]
int counter1 = 0, counter2 = 0;
fgets(input, 10, stdin);
for(int i = 0; i < 10; i++){
if(!isdigit(input[i]) && input[i] != '.' && input[i] != '\n'){
break;
}
if(input[i] != '.' && input[i] != '\n'){
numbers[counter1++] = input[i];
}
else {
date[counter2++] = atoi(numbers);
if(counter2 == 1 && (date[0] < 1 || date[0] > 31)){
break;
}
else if(counter2 == 2 && (date[1] < 1 || date[1] > 12)){
break;
}
else if(counter2 == 2 && date[0] > 29){
break;
}
else if (counter2 == 3){
date[1] += 7;
if(date[0] > 31 && (date[1] == 1 || date[1] == 3 || date[1] == 5 || date[1] == 7 || date[1] == 8 || date[1] == 10 || date[1] == 12)){
date[0] -= 31;
date[1]++;
if(date[1] > 12){
date[1] = 1;
date[2]++;
}
}
if(date[0] > 30 && (date[1] == 4 || date[1] == 6 || date[1] == 9 || date[1] == 11)){
date[0] -= 30;
date[1]++;
}
if(date[0] > 29 && date[1] == 2 && date[2] % 4 == 0 && (date[2] % 100 != 0 || (date[2] %100 == 0 && date[2] % 400 == 0))){
date[0] -= 29;
date[1]++;
}
else if(date[0] > 28 && date[1] == 2){
date[0] -= 28;
date[1]++;
}
printf("%d.%d.%d\n", date[0], date[1], date[2]);
return 0;
}
}
}
puts("Neplatny datum");
return 0;
}