support bazel complie this project and format code.

basic_content/virtual/set1/BUILD

@@ -0,0 +1,8 @@
+# please run `bazel run basic_content/virtual/set1:emp`
+load("@rules_cc//cc:defs.bzl", "cc_binary")
+
+cc_binary(
+    name = "emp",
+    srcs = ["emp.cpp"],
+    copts = ["-std=c++11"]
+)

basic_content/virtual/set1/emp.cpp

@@ -1,52 +1,40 @@
-#include<iostream>
+#include <iostream>
 using namespace std;
 
+class Employee {
+public:
+  virtual void raiseSalary() { cout << 0 << endl; }
 
-class Employee 
-{ 
-    public: 
-        virtual void raiseSalary() 
-        {
-            cout<<0<<endl; 
-        }
+  virtual void promote() { /* common promote code */
+  }
+};
 
-        virtual void promote() 
-        { /* common promote code */ } 
-}; 
+class Manager : public Employee {
+  virtual void raiseSalary() { cout << 100 << endl; }
 
-class Manager: public Employee { 
-    virtual void raiseSalary() 
-    {   
-        cout<<100<<endl;    
-    } 
+  virtual void promote() { /* Manager specific promote */
+  }
+};
+class Engineer : public Employee {
+  virtual void raiseSalary() { cout << 200 << endl; }
 
-    virtual void promote() 
-    { /* Manager specific promote */ } 
-}; 
-class Engineer: public Employee { 
-    virtual void raiseSalary() 
-    {
-        cout<<200<<endl;    
-    }
+  virtual void promote() { /* Manager specific promote */
+  }
+};
 
-    virtual void promote() 
-    { /* Manager specific promote */ } 
-}; 
-
-// Similarly, there may be other types of employees 
-// We need a very simple function to increment salary of all employees 
-// Note that emp[] is an array of pointers and actual pointed objects can 
-// be any type of employees. This function should ideally be in a class  
-// like Organization, we have made it global to keep things simple 
-void globalRaiseSalary(Employee *emp[], int n) 
-{ 
-    for (int i = 0; i < n; i++) 
-        emp[i]->raiseSalary(); // Polymorphic Call: Calls raiseSalary()  
-    // according to the actual object, not  
-    // according to the type of pointer                                  
-} 
-int main(){
-    Employee *emp[]={new Manager(),new Engineer};
-    globalRaiseSalary(emp,2); 
-    return 0;
+// Similarly, there may be other types of employees
+// We need a very simple function to increment salary of all employees
+// Note that emp[] is an array of pointers and actual pointed objects can
+// be any type of employees. This function should ideally be in a class
+// like Organization, we have made it global to keep things simple
+void globalRaiseSalary(Employee *emp[], int n) {
+  for (int i = 0; i < n; i++)
+    emp[i]->raiseSalary(); // Polymorphic Call: Calls raiseSalary()
+                           // according to the actual object, not
+                           // according to the type of pointer
+}
+int main() {
+  Employee *emp[] = {new Manager(), new Engineer};
+  globalRaiseSalary(emp, 2);
+  return 0;
 }