Thread: Got Into Trouble with simple programe.

Question:- Any Year Is input through the keyboard,wrtie a pgm to determine whether the year is leap year or not. Use Logical Operators. && and || ....

Now i have solved this problem using if-else , and using conditional opertor such as ? , : . See the pgm below.

if-else USED here !!!

Code:

 
 
#include <stdlib.h>
#include <conio.h>
#include <ctype.h>
#include <stdio.h>
main()
{
int y;
printf("Enter The Year:");
scanf("%d",&y);       
clrscr();        
    if(y%4==0)
    printf("This is leap Year");
    else
    printf("Not a Leap Year");
getch();
}

Conditional operators used here!!

Code:

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <ctype.h>
main()
{
int y;
printf("Enter The Year");
scanf("%d",&y);
(y%4==0 ? printf("Leap Year") : printf("Not A Leap Year"));
getch(); 
}

Now i m stuck in the same pgm where it asked to use logical oeperators....
see my programem below

Code:

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <ctype.h>
main()
{
int y;
printf(" Input the desired year");
scanf("%d",&y);
if((y%4==0)||(y%4!=0)
printf("Leap Yr
 I m stuck here......  i do not know..how can i use logical oeprators as there is only one condition that is " IF THE YEAR IS DIVIDED BY 4 THEN IT IS LEAP YEAR" so how can we use logical operators?????
 
Please help

if((y%4==0)||(y%4!=0))

Here you are missing a closing bracket, but even then the comparison is pointless as it always results as true.

Your first method is probably the best way to do this, but if you really need to use logical or here you could do:

Code:

int ym = y%4;
if(ym == 1 || ym == 2 || ym == 3)
{
   // do something
}
else
{
   // do something else
}

here it goes,

A leap year is a year which is divisible by 4,..but if it is evenly divisible by 100 then it is not a leap year,but if it is evenly divisible by 400 then it is a leap year..

Code:

if((year%4==0 && year%100!=0 ||(year%400)==0))

there is some problem.... what is ym....?"?? i understand y is the INPUT YEAR but what is ym?

its just a temporary variable to save writing (y%4) all the time and it also cuts out some extra work for the cpu.

Originally Posted by edesign

here it goes,

A leap year is a year which is divisible by 4,..but if it is evenly divisible by 100 then it is not a leap year,but if it is evenly divisible by 400 then it is a leap year..

Code:

if((year%4==0 && year%100!=0 ||(year%400)==0))

this worked
here is the code i used ........

Code:

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <ctype.h>
main()
{
int y;
printf(" Input the desired year");
scanf("%d",&y);

if((y%4==0 && y%100!=0 ||(y%400)==0))
printf("Leap Yr ");
else
printf("not leap yr");
getch();
}

Thanks Buddy!!!!!!!!!!!!

There is no reputation system otherwise i had given you !!!!! repps