223. Rectangle Area

题目：
https://leetcode.com/problems/add-two-numbers/

难度 : Easy

这道题是我瞎了狗眼，🐶，之前看错了，以为要求相交的部分，结果是求cover的部分，所以写的长||||||

class Solution(object):
    def computeArea(self, A, B, C, D, E, F, G, H):
        """
        :type A: int
        :type B: int
        :type C: int
        :type D: int
        :type E: int
        :type F: int
        :type G: int
        :type H: int
        :rtype: int
        """
        return self.area(C - A, D - B) + self.area(H - F, G - E ) - self.area(self.interSect(A,C,E,G), self.interSect(B,D,F,H))
            
    def area(self, w, h):
        if w * h < 0:
            return - w * h
        return w * h
        
    
    def interSect(self, A, C, E, G):
        if E > C:
            return 0
        elif G < A:
            return 0
        elif E >= A and G <= C:
            return G - E
        elif A >= E and C <= G:
            return C - A
        elif G <= C and G >= A and E <= A:
            return G - A
        else:
            return C - E