support bazel complie this project and format code.

basic_content/const/const_function.cpp

@@ -1,11 +1,9 @@
-#include<iostream>
+#include <iostream>
 using namespace std;
 
-void f(const int i){
-    i=10; // error: assignment of read-only parameter ‘i’
-    cout<<i<<endl;
+void f(const int i) {
+  i = 10; // error: assignment of read-only parameter ‘i’
+  cout << i << endl;
 }
 
-int main(){
-    f(1);
-}
+int main() { f(1); }