support bazel complie this project and format code.

cpp2.0/cpp11/variadic/variadic3_4.cpp

@@ -0,0 +1,31 @@
+//
+// Created by light on 19-11-4.
+//
+
+#include <iostream>
+
+using namespace std;
+
+// 参数type相同的max
+int max(initializer_list<int> initializerList) {
+    int res = *initializerList.begin();
+    for (auto elem:initializerList)
+        res = max(res, elem);
+    return res;
+}
+
+
+// 参数type相同的maximum
+int maximum(int n) {
+    return n;
+}
+
+template<typename ...Args>
+int maximum(int n, Args...args) {
+    return std::max(n, maximum(args...));
+}
+
+int main() {
+    cout << max({10, 8, 100, 1}) << endl;
+    cout << maximum(57, 48, 60, 100, 20, 18) << endl;
+}