Create rectangle-area.cpp

Author: kamyu104

C++/rectangle-area.cpp

@@ -0,0 +1,12 @@
+// Time:  O(1)
+// Space: O(1)
+
+class Solution {
+public:
+    int computeArea(int A, int B, int C, int D, int E, int F, int G, int H) {
+        return (D - B) * (C - A) +
+               (G - E) * (H - F) -
+               max(0, (min(C, G) - max(A, E))) *
+               max(0, (min(D, H) - max(B, F)));
+    }
+};