lvalue in c++ code example

Example 1: pionter in c++

#include <iostream>
using namespace std;
int main(){
   //Pointer declaration
   int *p, var=101;
 
   //Assignment
   p = &var;

   cout<<"Address of var: "<<&var<<endl;
   cout<<"Address of var: "<<p<<endl;
   cout<<"Address of p: "<<&p<<endl;
   cout<<"Value of var: "<<*p;
   return 0;
}

Example 2: how to cout in c++

std::cout << "Hello World!" << std::endl; //Or you can do
std::cout << "Hello World!" <<; //Only in some scenarios