1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54

/*
 *  Q3.c
 *  
 *
 *  Created by Daniel Gerald.
 *  Copyright 2006. All rights reserved.
 *
 */


#include <stdio.h>

int main(void)
{
   int value = 1, leap_year = 0;

    /* keep looping forever */
    while (value > 0)
    {
        printf ("Enter a year: ");
        /* year is a float value */
        scanf("%d", &value);
        fflush(stdin);
  

        /* calculate if year is not a leap year if it is not evenly divisable by 4 */
        if (value % 4 != 0)
        {
            leap_year = 0;
        }
      
        else if (value % 100 != 0)
    {
            leap_year = 0;
        }
 
        else if (value % 400 == 0)
        {
            leap_year = 1;

    
        }

        if (value > 0)
    {
    if (leap_year == 1)
    
    printf("Year %d is a leap year!", value);
    
    else 
    
    printf("Year %d is not a leap year!", value);
    }
}