1. Develop a Program in C for the following:
a. Declare a calendar as an array of 7 elements (A dynamically Created array) to represent 7 days of a week. Each Element of the array is a structure having three fields. The first field is the name of the Day (A dynamically allocated String), The second field is the date of the Day (A integer), the third field is the description of the activity for a particular day (A dynamically allocated String).
b. Write functions create(), read() and display(); to create the calendar, to read the data from the keyboard and to print weeks activity details report on screen.
#include <stdio.h>
#include <stdlib.h>
struct Day {
char *dayName;
int date;
char *activity;
};
void create(struct Day *day) {
day->dayName = (char *)malloc(sizeof(char) * 20);
day->activity = (char *)malloc(sizeof(char) * 100);
printf("Enter the day name: ");
scanf("%s", day->dayName);
printf("Enter the date: ");
scanf("%d", &day->date);
printf("Enter the activity for the day: ");
scanf(" %[^\n]s", day->activity);
}
void read(struct Day *calendar, int size) {
for (int i = 0; i < size; i++) {
printf("Enter details for Day %d:\n", i + 1);
create(&calendar[i]);
}
}
void display(struct Day *calendar, int size) {
printf("\nWeek's Activity Details:\n");
for (int i = 0; i < size; i++) {
printf("Day %d:\n", i + 1);
printf("Day Name: %s\n", calendar[i].dayName);
printf("Date: %d\n", calendar[i].date);
printf("Activity: %s\n", calendar[i].activity);
printf("\n");
}
}
void freeMemory(struct Day *calendar, int size) {
for (int i = 0; i < size; i++) {
free(calendar[i].dayName);
free(calendar[i].activity);
}
}
int main() {
int size;
printf("Enter the number of days in the week: ");
scanf("%d", &size);
struct Day *calendar = (struct Day *)malloc(sizeof(struct Day) * size);
if (calendar == NULL) {
printf("Memory allocation failed. Exiting program.\n");
return 1;
}
read(calendar, size);
display(calendar, size);
freeMemory(calendar, size);
free(calendar);
return 0;
}OUTPUT:
Enter the number of days in the week: 7
Enter details for Day 1:
Enter the day name: Sunday
Enter the date: 1
Enter the activity for the day: Learning
Enter details for Day 2:
Enter the day name: Monday
Enter the date: 2
Enter the activity for the day: Coding
Enter details for Day 3:
Enter the day name: Tuesday
Enter the date: 3
Enter the activity for the day: Testing
Enter details for Day 4:
Enter the day name: Wednesday
Enter the date: 4
Enter the activity for the day: Debugging
Enter details for Day 5:
Enter the day name: Thrusday
Enter the date: 5
Enter the activity for the day: Publishing
Enter details for Day 6:
Enter the day name: Friday
Enter the date: 6
Enter the activity for the day: Marketing
Enter details for Day 7:
Enter the day name: Saturday
Enter the date: 7
Enter the activity for the day: Earning
Week's Activity Details:
Day 1:
Day Name: Sunday
Date: 1
Activity: Learning
Day 2:
Day Name: Monday
Date: 2
Activity: Coding
Day 3:
Day Name: Tuesday
Date: 3
Activity: Testing
Day 4:
Day Name: Wednesday
Date: 4
Activity: Debugging
Day 5:
Day Name: Thrusday
Date: 5
Activity: Publishing
Day 6:
Day Name: Friday
Date: 6
Activity: Marketing
Day 7:
Day Name: Saturday
Date: 7
Activity: Earning