Number of ways N can be divided into four parts to construct a rectangle | Java implementation of the approach ; Function to return the required number of ways ; Driver code
class GFG { static int cntWays ( int n ) { if ( n % 2 == 1 ) { return 0 ; } else { return ( n - 2 ) / 4 ; } } public static void main ( String [ ] args ) { int n = 18 ; System . out . println ( cntWays ( n ) ) ; } }