function to Check whether a given point lies inside or on the rectangle or not
def LiesInsieRectangle ( a , b , x , y ) : NEW_LINE INDENT if ( x - y - b <= 0 and x - y + b >= 0 and x + y - 2 * a + b <= 0 and x + y - b >= 0 ) : NEW_LINE INDENT return True NEW_LINE DEDENT return False NEW_LINE DEDENT