Find the total area covered by tworectilinearrectangles in a2Dplane.

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 ofint.

class Solution {
    public int computeArea(int A, int B, int C, int D, int E, int F, int G, int H) {
        int area1 = (C - A) * (D - B);
        int area2 = (G - E) * (H - F);

        int left = Math.max(A, E);
        int right = Math.min(C, G);
        int top = Math.min(D, H);
        int bottom = Math.max(B, F);

        boolean overlap = left < right && top > bottom;

        return overlap ? area1 + area2 - (right - left) * (top - bottom) : area1 + area2;
    }
}