Please help me to find the problem for c$++$ thank you.

I wrote the code out but it says in my user.cpp and main.cpp have some mistakes. Please help me fix it thank you

The Question: Implement THE Operator Overloading for class User

$1)$ Complete the implementation of the operator overloading for your user.h and user.cpp$.$

bool operator$==($const User&$)$ const;

bool operator!$=($const User&$)$ const;

bool operator$>($const User&$)$ const;

bool operator$<($const User&$)$ const;

bool operator$>=($const User&$)$ const;

bool operator$<=($const User&$)$ const;

$2)$ Implement the istream and ostream for your user.h and user.cpp

friend istream& operator $>>($istream& in$,$ User& user$)$;

friend ostream& operator$<<($ostream& out, User& user$)$;

my answere:

user.h

#include

using namespace std;

class User $\{$

public:

bool operator$==($const User&$)$ const;

bool operator!$=($const User&$)$ const;

bool operator$>($const User&$)$ const;

bool operator$<($const User&$)$ const;

bool operator$>=($const User&$)$ const;

bool operator$<=($const User&$)$ const;

friend std::istream& operator$>>($std::istream& in$,$ User& user$)$;

friend std::ostream& operator$<<($std::ostream& out, const User& user$)$;

private:

std::string name;

int age;

$\}$;

user.cpp

#include "user.h$"$

User::User$($const std::string& name, int age$)$ : name$($name$),$ age$($age$)\{\}$

bool User::operator$==($const User& other$)$ const $\{$

return name $==$ other.name && age $==$ other.age;

$\}$

bool User::operator!$=($const User& other$)$ const $\{$

return $!(*$this $==$ other$)$;

$\}$

bool User::operator$>($const User& other$)$ const $\{$

return age $>$ other.age $||($age $==$ other.age && name $>$ other.name$)$;

$\}$

bool User::operator$<($const User& other$)$ const $\{$

return age $<$ other.age $||($age $==$ other.age && name $<$ other.name$)$;

$\}$

bool User::operator$>=($const User& other$)$ const $\{$

return $!(*$this $<$ other$)$;

$\}$

bool User::operator$<=($const User& other$)$ const $\{$

return $!(*$this $>$ other$)$;

$\}$

std::istream& operator$>>($std::istream& in$,$ User& user$)\{$

std::string name;

int age;

in $>>$ name $>>$ age;

if $($in$)\{$

user $=$ User$($name$,$ age$)$;

$\}$

return in;

$\}$

std::ostream& operator$<<($std::ostream& out, const User& user$)\{$

out $<<$ user.name $<<""<<$ user.age;

return out;

$\}$

main.cpp

#include

#include "user.h$"$

int main$()\{$

User user$1("$Eason$",21)$;

User user$2("$jason$",20)$;

std::cout $<<$ "User$1$: $"<<$ user$1<<$ std::endl;

std::cout $<<$ "User$2$: $"<<$ user$2<<$ std::endl;

if $($user$1==$ user$2)\{$

std::cout $<<$ "User$1$ and User$2$ are equal." $<<$ std::endl;

$\}$

else if $($user$1>$ user$2)\{$

std::cout $<<$ "User$1$ is older than User$2."<<$ std::endl;

$\}$

else $\{$

std::cout $<<$ "User$1$ is younger than User$2."<<$ std::endl;

$\}$

std::cout $<<$ "Enter a new user: $"$;

User newUser;

std::cin $>>$ newUser;

std::cout $<<$ "New user: $"<<$ newUser $<<$ std::endl;

return $0$;

$\}$