Adsense 728 * 15

Search

Custom Search

C Program to Check Leap Year

Write a C program to check whether a entered year is a leap year or not. In this tutorial,  we are going to write a code which take a year as an input and print whether a input year is a leap year or not.

What is Leap Year?


A Leap year is a year which has 366 days, it means it has one additional day. Each leap year has 366 days instead of the usual 365 days.

Leap Year Program in C, C++


Algorithm to Check Leap Year


i) If a year is divisible by 4 and not divisible by 100 then it's a leap year.  For example - 2012, 2008 etc.

ii) If a century year (1200, 1600) is divisible by 400  then it's a leap year. For example - 1200, 1600 etc.

C, C++ Interview Questions

C program to print factorial of a number

C program to calculate power of a number


C Program to Check Leap Year


C Program to Check Leap Year using Conditional Operator


We have discussed what is leap and algorithm to check leap year. Let's write a code which takes an input (year) and check whether a input year is a leap year or not.

#include <stdio.h>

int main(void) {
 
      int year;
   
      printf("Enter a year\n");
      scanf("%d",&year);
      
      /* Leap is divisible by 4 but not by 100
         or it is divisible by 400
      */
      if( ( (year%4 == 0) && (year%100!=0) ) 
             || (year%400==0) )
      {
           printf("%d is a leap year.", year );
      }
      else
      {
           printf("%d is not a leap year.", year);
      }

     return 0;     
}


Another way of writing above program.

C program to check whether a number is Palindrome or not

#include <stdio.h>

int main(void) {
 
      int year;
   
      printf("Enter a year \n");
      scanf("%d",&year);
      
      /* Check whether a entered year 
         is divisible by 4 */
      
      if(year%4 == 0)
      {
         /* For century year 
           such as 500,1200 etc */
         
          if( year%100 == 0) 
          {
             /* If it's divisible by 400 
                then it's a leap year */
             
              if ( year % 400 == 0)
              {
                 printf("%d is a leap year.", year);
              }
              else
              {
                 printf("%d is not a leap year.", year);
              }
          }
          else
             printf("%d is a leap year.", year );
      }
      else
      {
         printf("%d is not a leap year.", year);
      }
      
      return 0;
      
}




C Program to Check Leap Year using Function



In this programming example, let's create a function which checks whether an input year is leap year or not.

#include <stdio.h>

bool checkLeapYear(int year) {
    
    /* Leap is divisible by 4 but not by 100
         or it is divisible by 400
    */
      
    if( ( (year%4 == 0) && (year%100!=0) ) 
            || (year%400==0) ) 
    {
        return true;
    }
    else
    {
        return false;
    }
}

int main(void) {
 
      int year;
   
      printf("Enter a year\n");
      scanf("%d", &year);
      
      
      if( checkLeapYear(year) ) 
      {
           printf(" %d is a leap year.", year );
      }
      else
      {
           printf("%d is not a leap year.", year);
      }

     return 0;     
}



Output:


Enter a year  :  2008

2008 is a leap year

No comments:

Post a Comment