Create bulb-switcher-ii.cpp

Author: kamyu104

C++/bulb-switcher-ii.cpp

@@ -0,0 +1,14 @@
+// Time:  O(1)
+// Space: O(1)
+
+class Solution {
+public:
+    int flipLights(int n, int m) {
+        if (m == 0)           return 1;
+        if (n == 1)           return 2;
+        if (m == 1 && n == 2) return 3;
+        if (m == 1 || n == 2) return 4;
+        if (m == 2)           return 7;
+        return 8;
+    }
+};