A year is leap year if the following conditions are satisfied:
- Year is multiple of 400.
- Year is multiple of 4 and not multiple of 100.
Following is pseudo code
if year is divisible by 400 then is_leap_year else if year is divisible by 100 then not_leap_year else if year is divisible by 4 then is_leap_year else not_leap_year
C++
// C++ program to check if a given // year is leap year or not #include <bits/stdc++.h> using namespace std; bool checkYear( int year) { // If a year is multiple of 400, // then it is a leap year if (year % 400 == 0) return true ; // Else If a year is muliplt of 100, // then it is not a leap year if (year % 100 == 0) return false ; // Else If a year is muliplt of 4, // then it is a leap year if (year % 4 == 0) return true ; return false ; } // Driver code int main() { int year = 2000; checkYear(year) ? cout << "Leap Year" : cout << "Not a Leap Year" ; return 0; } // This is code is contributed // by rathbhupendra |
C
// C program to check if a given // year is leap year or not #include <stdio.h> #include <stdbool.h> bool checkYear( int year) { // If a year is multiple of 400, // then it is a leap year if (year % 400 == 0) return true ; // Else If a year is muliplt of 100, // then it is not a leap year if (year % 100 == 0) return false ; // Else If a year is muliplt of 4, // then it is a leap year if (year % 4 == 0) return true ; return false ; } // driver code int main() { int year = 2000; checkYear(year)? printf ( "Leap Year" ): printf ( "Not a Leap Year" ); return 0; } |
Java
// Java program to check // for a leap year class Test { static boolean checkYear( int year) { // If a year is multiple of 400, // then it is a leap year if (year % 400 == 0 ) return true ; // Else If a year is muliplt of 100, // then it is not a leap year if (year % 100 == 0 ) return false ; // Else If a year is muliplt of 4, // then it is a leap year if (year % 4 == 0 ) return true ; return false ; } // Driver method public static void main(String[] args) { int year = 2000 ; System.out.println( checkYear( 2000 )? "Leap Year" : "Not a Leap Year" ); } } |
Python3
# Python program to check leap year or not def checkYear(year): if (year % 4 ) = = 0 : if (year % 100 ) = = 0 : if (year % 400 ) = = 0 : return True else : return False else : return True else : return False # Driver Code year = 2000 if (checkYear(year)): print ( "Leap Year" ) else : print ( "Not a Leap Year" ) # This code is contributed by Chinmoy Lenka |
C#
// C# program to check // for a leap year using System; class GFG { static bool checkYear( int year) { // If a year is multiple of 400, // then it is a leap year if (year % 400 == 0) return true ; // Else If a year is muliplt of 100, // then it is not a leap year if (year % 100 == 0) return false ; // Else If a year is muliplt of 4, // then it is a leap year if (year % 4 == 0) return true ; return false ; } // Driver method public static void Main() { int year = 2000; Console.Write( checkYear(year)? "Leap Year" : "Not a Leap Year" ); } } // This code is contributed by Sam007 |
PHP
<?php // PHP code to check if a given // year is leap year function checkYear( $year ) { // If a year is multiple of 400, // then it is a leap year if ( $year % 400 == 0) print ( "Leap Year" ); // Else If a year is muliplt of 100, // then it is not a leap year else if ( $year % 100 == 0) print ( "Not a Leap Year" ); // Else If a year is multiple of 4, // then it is a leap year else if ( $year % 4 == 0) print ( "Leap Year" ); else print ( "Not a Leap Year" ); } // Driver code $year = 2000; checkYear( $year ); // This code is contributed by ash264 ?> |
Output:
Leap Year
How to write above code in one line?
C++
// One line C program to check if a
// given year is leap year or not
#include
using namespace std;
bool checkYear(int year)
{
// Return true if year is a multiple
// 0f 4 and not multiple of 100.
// OR year is multiple of 400.
return (((year % 4 == 0) && (year % 100 != 0)) ||
(year % 400 == 0));
}
// Driver code
int main()
{
int year = 2000;
checkYear(year)? cout << "Leap Year": cout << "Not a Leap Year"; return 0; } // This code is contributed by Akanksha Rai [tabby title="C"]
// One line C program to check if a // given year is leap year or not #include <stdio.h> #include <stdbool.h> bool checkYear( int year) { // Return true if year is a multiple // 0f 4 and not multiple of 100. // OR year is multiple of 400. return (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)); } // driver code int main() { int year = 2000; checkYear(year)? printf ( "Leap Year" ): printf ( "Not a Leap Year" ); return 0; } |
Java
// Java program to check // for a leap year class Test { static boolean checkYear( int year) { // Return true if year is a multiple // of 4 and not multiple of 100. // OR year is multiple of 400. return (((year % 4 == 0 ) && (year % 100 != 0 )) || (year % 400 == 0 )); } // Driver method public static void main(String[] args) { int year = 2000 ; System.out.println(checkYear( 2000 )? "Leap Year" : "Not a Leap Year" ); } } |
Python3
# Python program to check leap year # or not in a single line def checkYear(year): # Return true if year is a multiple # of 4 and not multiple of 100. # OR year is multiple of 400. return (((year % 4 = = 0 ) and (year % 100 ! = 0 )) or (year % 400 = = 0 )); # Driver Code year = 2000 if (checkYear(year)): print ( "Leap Year" ) else : print ( "Not a Leap Year" ) # This code is contributed by Chinmoy Lenka |
C#
// C# program to check // for a leap year using System; class GFG { static bool checkYear( int year) { // Return true if year is a multiple // of 4 and not multiple of 100. // OR year is multiple of 400. return (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)); } // Driver method public static void Main() { int year = 2000; Console.Write( checkYear(year)? "Leap Year" : "Not a Leap Year" ); } } // This code is contributed by Sam007 |
PHP
<?php // PHP code to check if a given // year is leap year function checkYear( $year ) { // Return true if year is a multiple // 0f 4 and not multiple of 100. // OR year is multiple of 400. return ((( $year % 4 == 0) && ( $year % 100 != 0)) || ( $year % 400 == 0)); } // Driver code $year = 2000; checkYear( $year )? print ( "Leap Year" ): print ( "Not a Leap Year" ); // This code is contributed by ash264 ?> |
Output:
Leap Year
This article is attributed to GeeksforGeeks.org
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