@@ -0,0 +1,327 @@
+package leetcode;%0A%0A/**%0A * https://leetcode.com/problems/bulb-switcher/%0A */%0Apublic class Problem319 %7B%0A    public int bulbSwitch(int n) %7B%0A        // TODO%0A        return 0;%0A    %7D%0A%0A    public static void main(String%5B%5D args) %7B%0A        Problem319 prob = new Problem319();%0A        System.out.println(prob.bulbSwitch(3)); // 1%0A    %7D%0A%7D%0A

Add a skeleton for problem 319