Stream Overloading

// #include <bits/stdc++.h>
// #include<chrono>
// using namespace std;
// auto start = chrono::steady_clock::now();

// int main(){
//     cout<<"My name is Devil"<<endl;
//     auto end= chrono::steady_clock::now();
//     auto diff = end - start;
//     cout<<chrono::duration<double,milli>(diff).count()<<" ms"<<endl;
//     return 0;
// }

// #include <bits/stdc++.h>
// #include<chrono>
// using namespace std;
// auto start = chrono::steady_clock::now();

// int main(){
    
//     cout<<"Hello how are u Akash kumar jiii"<<endl;
//     auto end= chrono::steady_clock::now();
//     auto diff = end - start;
//     cout<<chrono::duration<double,milli>(diff).count()<<"ms"<<endl;
//     return 0;
// }

#include<bits/stdc++.h>
#include<stdexcept>
#include<chrono>
using namespace std;
auto start = chrono::steady_clock::now();

class Person{
	string name;
	int age;
	public:	
		Person(){
			this->name = "No name";
			this->age = 0;
		}
		friend ostream &operator <<(ostream &output , Person &p);
		friend istream &operator >>(istream &input , Person &p);
};

ostream &operator <<(ostream &output , Person &p){
	output<<"Who is Devil "<<endl;
	output<<"My name is "<<p.name<<" My age is "<<p.age<<endl;
	return output;
}
istream &operator >>(istream &input , Person &p){
	cin>>p.name>>p.age;
	return input;
}

int main(){
	cout<<"Enter the name "<<endl;
	Person ak;
	cin>>ak;
	cout<<ak;

    auto end= chrono::steady_clock::now();
    auto diff = end - start;
    cout<<chrono::duration<double,milli>(diff).count()<<" ms"<<endl;
}

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