Forked from basarersek/Hospital_Appointment_System.txt
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March 6, 2023 10:05
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Hospital Appointment System
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| #include <stdio.h> | |
| #include <string.h> | |
| #include <time.h> | |
| #define MAX_APPOINTMENTS 2 | |
| #define MAX_NAME_LENGTH 50 | |
| struct appointment { | |
| char name[MAX_NAME_LENGTH]; | |
| char surname[MAX_NAME_LENGTH]; | |
| time_t date; | |
| }; | |
| struct appointment appointments[MAX_APPOINTMENTS]; | |
| int num_appointments = 0; | |
| void make_appointment() { | |
| if (num_appointments == MAX_APPOINTMENTS) { | |
| printf("Error: Cannot make any more appointments, maximum number of appointments reached.\n"); | |
| return; | |
| } | |
| printf("Enter name: "); | |
| scanf("%s", appointments[num_appointments].name); | |
| printf("Enter surname: "); | |
| scanf("%s", appointments[num_appointments].surname); | |
| printf("Enter appointment date and time (YYYY-MM-DD HH:MM): "); | |
| int year, month, day, hour, minute; | |
| scanf("%d-%d-%d %d:%d", &year, &month, &day, &hour, &minute); | |
| struct tm tm = {0}; | |
| tm.tm_year = year - 1900; | |
| tm.tm_mon = month - 1; | |
| tm.tm_mday = day; | |
| tm.tm_hour = hour; | |
| tm.tm_min = minute; | |
| appointments[num_appointments].date = mktime(&tm); | |
| // Check if there are already 5 appointments on the same date | |
| int count = 0; | |
| for (int i = 0; i < num_appointments; i++) { | |
| struct tm *tm2 = localtime(&appointments[i].date); | |
| if (tm2->tm_year == tm.tm_year && tm2->tm_mon == tm.tm_mon && tm2->tm_mday == tm.tm_mday) { | |
| count++; | |
| } | |
| } | |
| if (count >= 5) { | |
| printf("Error: Cannot make more than 5 appointments on the same day.\n"); | |
| return; | |
| } | |
| // Check if there is already an appointment at the same date and time | |
| for (int i = 0; i < num_appointments; i++) { | |
| struct tm *tm2 = localtime(&appointments[i].date); | |
| if (tm2->tm_year == tm.tm_year && tm2->tm_mon == tm.tm_mon && tm2->tm_mday == tm.tm_mday && tm2->tm_hour == tm.tm_hour && tm2->tm_min == tm.tm_min) { | |
| printf("Error: An appointment already exists at this date and time.\n"); | |
| return; | |
| } | |
| } | |
| num_appointments++; | |
| } | |
| void display_appointments() { | |
| for (int i = 0; i < num_appointments; i++) { | |
| struct tm *tm = localtime(&appointments[i].date); | |
| char date_string[20]; | |
| strftime(date_string, sizeof(date_string), "%Y-%m-%d", tm); | |
| printf("%s %s: %s\n", appointments[i].name, appointments[i].surname, date_string); | |
| } | |
| } | |
| int main() { | |
| while (1) { | |
| printf("\nMenu:\n"); | |
| printf("1. Make an appointment\n"); | |
| printf("2. Display all appointments\n"); | |
| printf("Enter your choice: "); | |
| int choice; | |
| scanf("%d", &choice); | |
| if (choice == 1) { | |
| make_appointment(); | |
| } else if (choice == 2) { | |
| display_appointments(); | |
| } else { | |
| printf("Invalid choice.\n"); | |
| } | |
| } | |
| return 0; | |
| } | |
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