support bazel complie this project and format code.

basic_content/const/funciton_const/condition2/condition3.cpp

@@ -1,8 +1,7 @@
-#include<iostream>
+#include <iostream>
 using namespace std;
-int main(){
-
-    const int num=10;
-    const int * const ptr=&num; //error! const int* -> int*
-    cout<<*ptr<<endl;
+int main() {
+  const int num = 10;
+  const int *const ptr = &num;
+  cout << *ptr << endl;
 }