Function that return the coordinates of the fourth vertex of the rectangle
def findFourthVertex ( n , m , s ) : NEW_LINE INDENT row = dict . fromkeys ( range ( n ) , 0 ) NEW_LINE col = dict . fromkeys ( range ( m ) , 0 ) NEW_LINE for i in range ( n ) : NEW_LINE INDENT for j in range ( m ) : NEW_LINE DEDENT DEDENT