_223.java

package com.fishercoder.solutions;

public class _223 {

    public static class Solution1 {
        public int computeArea(int A, int B, int C, int D, int E, int F, int G, int H) {
            int areaA = (C - A) * (D - B);
            int areaB = (G - E) * (H - F);

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

            int overlap = 0;
            if (top > bottom && right > left) {
                overlap = (top - bottom) * (right - left);
            }
            return areaA + areaB - overlap;
        }
    }
}