support bazel complie this project and format code.

learn_class/modern_cpp_30/constexpr/container.cpp

@@ -0,0 +1,32 @@
+//
+// Created by light on 19-12-16.
+//
+
+#include "../container1/output_container.h"
+#include <iostream>
+#include <map>
+#include <set>
+#include <vector>
+
+using namespace std;
+
+int main() {
+  map<int, int> mp{{1, 1}, {2, 4}, {3, 9}};
+  cout << mp << endl;
+  vector<vector<int>> vv{{1, 1}, {2, 4}, {3, 9}};
+  cout << vv << endl;
+
+  pair<int, int> p{1, 2};
+  cout << p << endl;
+
+  set<int> s{1, 2, 3};
+  cout << s << endl;
+
+  vector<char> v{'a', 'b'};
+  cout << v << endl;
+  set<char *> vs{"a", "b"};
+  cout << vs << endl;
+
+  map<int, char *> mm{{1, "23"}, {2, "234hi"}};
+  cout << mm << endl;
+}