Leetcode 题目解析之 Rectangle Area

Find the total area covered by two rectilinear rectangles in a 2D plane.

Each rectangle is defined by its bottom left corner and top right corner as shown in the figure.

Assume that the total area is never beyond the maximum possible value of int.

题目要求的是两个矩形总的面积，不是相交的面积……

1. 不考虑两个矩形相交，分别求出每个矩形的面积，相加
2. 如果两个矩形不相交，直接返回结果
3. 如果两个矩形相交，减去相交部分面积

代码语言：javascript复制

    public int computeArea(int A, int B, int C, int D, int E, int F, int G,
            int H) {
        int area = (C - A) * (D - B)   (G - E) * (H - F);
        if (A >= G || B >= H || C <= E || D <= F) {
            return area;
        }
        int top = Math.min(D, H);
        int bottom = Math.max(B, F);
        int left = Math.max(A, E);
        int right = Math.min(C, G);
        return area - (top - bottom) * (right - left);
    }

area each figure find int

0 人点赞