Check if it is possible to move from ( 0 , 0 ) to ( x , y ) in N steps | Function to check whether it is possible or not to move from ( 0 , 0 ) to ( x , y ) in exactly n steps ; Driver code
function Arrive ( a , b , n ) { if ( n >= Math . abs ( a ) + Math . abs ( b ) && ( n - ( Math . abs ( a ) + Math . abs ( b ) ) ) % 2 == 0 ) return true ; return false ; } var a = 5 , b = 5 , n = 11 ; if ( Arrive ( a , b , n ) ) document . write ( " " ) ; else document . write ( " " ) ;