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c10

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This commit is contained in:
Akbar Rahman 2023-10-06 14:43:22 +01:00
parent 4b798bfc66
commit 12c68a539b
Signed by: alvierahman90
GPG Key ID: 20609519444A1269
2 changed files with 87 additions and 0 deletions
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42
C10/ex4.c Normal file
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#include <stdio.h>
int date_to_day(int year, int month, int day) {
if (month < 3) {
month += 12;
year -= 1;
}
return ((13*month+3)/5 + day + year + year/4 - year/100 + year/400) % 7;
}
int main() {
int rc, year, month, day, nd;
printf("Enter a day (yyyy-mm-dd): ");
rc = scanf("%d-%d-%d", &year, &month, &day);
if (rc != 3) {
printf("Failed to parse date\n");
return 1;
}
nd = date_to_day(year, month, day);
switch (nd) {
case 0:
printf("Monday\n"); break;
case 1:
printf("Tuesday\n"); break;
case 2:
printf("Wednesday\n"); break;
case 3:
printf("Thursday\n"); break;
case 4:
printf("Friday\n"); break;
case 5:
printf("Saturday\n"); break;
case 6:
printf("Sunday\n"); break;
}
return 0;
}

45
C10/ex5.c Normal file
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#include <stdio.h>
int date_to_day(int year, int month, int day) {
if (month < 3) {
month += 12;
year -= 1;
}
return ((13*month+3)/5 + day + year + year/4 - year/100 + year/400) % 7;
}
void print_day_of_week(int day) {
switch (day) {
case 0:
printf("Monday\n"); break;
case 1:
printf("Tuesday\n"); break;
case 2:
printf("Wednesday\n"); break;
case 3:
printf("Thursday\n"); break;
case 4:
printf("Friday\n"); break;
case 5:
printf("Saturday\n"); break;
case 6:
printf("Sunday\n"); break;
}
}
int main() {
int rc, year, month, day, nd;
printf("Enter a day (yyyy-mm-dd): ");
rc = scanf("%d-%d-%d", &year, &month, &day);
if (rc != 3) {
printf("Failed to parse date\n");
return 1;
}
nd = date_to_day(year, month, day);
print_day_of_week(nd);
return 0;
}