Question

You will update the program as follows:

[8 marks] Define the TimeType and DateType data types. The content of these data types can be deduced from a thorough reading of the base code.

[6 marks] Complete the implementation of the initDate() function.

[16 marks] Write the complete implementation of the selectTimes() function. This function populates the newArr parameter with all the dates in arr that have a time earlier than the given hours and minutes. For example, if the cut-off time specified is 14 hours and 30 minutes, newArr will contain all the dates with a time before 2:30 pm.

#include <stdio.h>

#include <string.h>

#include <stdlib.h>

#define MAX_STR_1 16

#define MAX_STR_2 32

#define MAX_ARR 64

#define C_OK 0

#define C_NOK -1

typedef struct {

/* TimeType not shown */

} TimeType;

typedef struct {

/* DateType not shown */

} DateType;

typedef struct {

int size;

DateType* elements[MAX_ARR];

} ArrayType;

void initArray(ArrayType*);

void addDate(ArrayType*, DateType*);

void selectTimes(ArrayType*, ArrayType*, int, int);

void initDate(char*, int, int, int, int, int, DateType*);

void printArray(ArrayType*);

void printDate(DateType*);

int main()

{

ArrayType calendar, specialCal;

DateType* newDate;

int num1, num2, num3, num4, num5;

char str[MAX_STR_1];

initArray(&calendar);

initArray(&specialCal);

while(1) {

printf("Enter month, day, year, hours, minutes, and seconds: ");

scanf("%s %d %d %d %d %d", str, &num1, &num2, &num3, &num4, &num5);

if (strcmp(str, "-1") == 0)

break;

newDate = malloc(sizeof(DateType));

initDate(str, num1, num2, num3, num4, num5, newDate);

addDate(&calendar, newDate);

}

printf("Enter cut-off time (hours and minutes): ");

scanf("%d %d", &num1, &num2);

selectTimes(&calendar, &specialCal, num1, num2);

printf(" FULL CALENDAR:");

printArray(&calendar);

printf(" MORNING CALENDAR:");

printArray(&specialCal);

return(0);

}

/*

Purpose: initialize an array structure

*/

void initArray(ArrayType *a) { a->size = 0; }

/*

Purpose: populate newArr with all dates from orgArr that have

a time before the given hours and minutes, for

example, if we want a calendar with all the morning

appointments, we would call this function with

h and m parameters set to 12 and 0, respectively

*/

void selectTimes(ArrayType *orgArr, ArrayType *newArr, int h, int m)

{

/* Implementation not shown */

}

/*

Purpose: add a date structure to the back of the array

*/

void addDate(ArrayType *arr, DateType *newDate)

{

if (arr->size >= MAX_ARR)

return;

arr->elements[arr->size] = newDate;

++(arr->size);

}

/*

Purpose: initialize a date structure with the given parameters

*/

void initDate(char *mm, int d, int y, int h, int m, int s, DateType *newDate)

{

/* Implementation not shown */

}

void printDate(DateType *d)

{

char str[MAX_STR_2];

sprintf(str, "%s %d, %d", d->month, d->day, d->year);

printf("%25s @ %2d:%2d:%2d ", str,

d->time.hours, d->time.minutes, d->time.seconds);

}

void printArray(ArrayType *arr)

{

int i;

printf(" ");

for (i=0; i<arr->size; ++i)

printDate(arr->elements[i]);

}

Answer 1

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#define MAX_STR_1 16
#define MAX_STR_2 32
#define MAX_ARR 64
#define C_OK 0
#define C_NOK -1

typedef struct {
   int hours;
   int minutes;
   int seconds;
} TimeType;

typedef struct {
   TimeType time;
   char month[MAX_STR_1];
   int day;
   int year;
} DateType;

typedef struct {
int size;
DateType* elements[MAX_ARR];
} ArrayType;

void initArray(ArrayType*);
void addDate(ArrayType*, DateType*);
void selectTimes(ArrayType*, ArrayType*, int, int);
void initDate(char*, int, int, int, int, int, DateType*);
void printArray(ArrayType*);
void printDate(DateType*);

int main()
{
ArrayType calendar, specialCal;
DateType* newDate;
int num1, num2, num3, num4, num5;
char str[MAX_STR_1];

initArray(&calendar);
initArray(&specialCal);

while(1) {
printf("Enter month, day, year, hours, minutes, and seconds: ");
scanf("%s %d %d %d %d %d", str, &num1, &num2, &num3, &num4, &num5);
if (strcmp(str, "-1") == 0)
break;
newDate = malloc(sizeof(DateType));
initDate(str, num1, num2, num3, num4, num5, newDate);
addDate(&calendar, newDate);
}

printf("Enter cut-off time (hours and minutes): ");
scanf("%d %d", &num1, &num2);
selectTimes(&calendar, &specialCal, num1, num2);

printf(" FULL CALENDAR:");
printArray(&calendar);

printf(" MORNING CALENDAR:");
printArray(&specialCal);

return(0);
}

/*
Purpose: initialize an array structure
*/
void initArray(ArrayType *a) { a->size = 0; }

/*
Purpose: populate newArr with all dates from orgArr that have
a time before the given hours and minutes, for
example, if we want a calendar with all the morning
appointments, we would call this function with
h and m parameters set to 12 and 0, respectively
*/
void selectTimes(ArrayType *orgArr, ArrayType *newArr, int h, int m)
{
   int i;
   newArr->size = 0;
    for(i=0;i<orgArr->size;i++){
        if(orgArr->elements[i]->time.hours < h || ((orgArr->elements[i]->time.hours == h) && (orgArr->elements[i]->time.minutes < m))){
            newArr->elements[newArr->size ++] = orgArr->elements[i];
       }
   }
}

/*
Purpose: add a date structure to the back of the array
*/
void addDate(ArrayType *arr, DateType *newDate)
{
if (arr->size >= MAX_ARR)
return;

arr->elements[arr->size] = newDate;
++(arr->size);
}

/*
Purpose: initialize a date structure with the given parameters
*/
void initDate(char *mm, int d, int y, int h, int m, int s, DateType *newDate)
{
   strcpy(newDate->month , mm);
   newDate->day = d;
   newDate->year = y;
   newDate->time.hours = h;
   newDate->time.minutes = m;
   newDate->time.seconds = s;
}

void printDate(DateType *d)
{
char str[MAX_STR_2];

sprintf(str, "%s %d, %d", d->month, d->day, d->year);

printf("%25s @ %2d:%2d:%2d ", str,
d->time.hours, d->time.minutes, d->time.seconds);

}

void printArray(ArrayType *arr)
{
int i;

printf(" ");

for (i=0; i<arr->size; ++i)
printDate(arr->elements[i]);
}