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# Answer to Question #52788 in C for raghu

Question #52788
Write a program that prompts the user to enter two dates and then find which date comes earlier on the calendar. Use structure to store date and function to compare dates.
Sample Run:
Enter first date (mm/dd/yy) : 3/8/10
Enter second date (mm/dd/yy) : 5/17/11
3/8/10 is earlier than 5/17/11.
1
2015-05-25T02:37:17-0400
#include <stdio.h>
#include <stdlib.h>
struct date
{
int month;
int day;
int year;
};
void printDate(const date *date)
{
printf("%d/%d/%d", date->month, date->day, date->year);
}
int compareDates(const date *first, const date *second)
{
int firstIsGreater = 0; // 0 - is not greater, 1 - is greater, 2 - are equals
if (first->year > second->year)
{
firstIsGreater = 1;
}
else if (first->year == second->year && first->month > second->month)
{
firstIsGreater = 1;
}
else if (first->year == second->year && first->month == second->month && first->day > second->day)
{
firstIsGreater = 1;
}
else if (first->year == second->year && first->month == second->month && first->day == second->day)
{
firstIsGreater = 2;
}
return firstIsGreater;
}
int main()
{
char firstDate[10];
char secondDate[10];
printf("Enter first date (mm/dd/yy): ");
gets(firstDate);
printf("Enter second date (mm/dd/yy): ");
gets(secondDate);
date first, second;

int index = -1;
int current = 0;
int type = 0; // 0 - month, 1 - day, 2 - year
do
{
index++;
if (firstDate[index] == '/' || firstDate[index] == '\0')
{
switch (type)
{
case 0:
first.month = current;
break;
case 1:
first.day = current;
break;
case 2:
first.year = current;
break;
}
type++;
current = 0;
}
else if (!current)
{
current = atoi(&firstDate;[index]);
}
} while (firstDate[index] != '\0');
index = -1;
type = 0;
current = 0;
do
{
index++;
if (secondDate[index] == '/' || secondDate[index] == '\0')
{
switch (type)
{
case 0:
second.month = current;
break;
case 1:
second.day = current;
break;
case 2:
second.year = current;
break;
}
type++;
current = 0;
}
else if (!current)
{
current = atoi(&secondDate;[index]);
}
} while (secondDate[index] != '\0');
{
case 0:
printDate(&first;);
printf(" is earlier than ");
printDate(&second;);
break;
case 1:
printDate(&first;);
printf(" is not earlier than ");
printDate(&second;);
break;
case 2:
printDate(&first;);
printf(" is equal to ");
printDate(&second;);
break;
}
return 0;
}

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