C++ login panel to view cout - c++

Question

#include "stdafx.h"
#include <iostream>
#include <conio.h>
int main()
{
int choice,num1,num2,num3,num4,result;
cout<<"NOTE:PASSWORD IS HIHGLY ENCYRPTED BETWEEN EACH 2 NUMBERS a + Sign!!!!"<<endl;
cout<<"Choose where you want to go:"<<endl;
cout<<"1-Wifi password list"<<endl;
cout<<"2-Facebook Password & Email"<<endl;
cin>>choice;
cout<<"Please Enter the password to continue:"<<endl;
cin>>num1>>num2>>num3>>num4;
switch(choice)
{
case 1: if (result==100)
{
cout<<"!!!!!Congratz you are Proffesional Cracker!!!!!"<<endl;
break;
}
else
{
result=num1+num2+num3+num4
cout<<"The sum of the Numbers aren't equal to the encyrpted number! try again"<<endl;
break
}
}
return 0;
}
i am making this project that if he choose case 1: ...... the "IF" show if result==100 then to cout<<"You are proffesinal cracker"<
but after compiling errors displayed in output
1>------ Build started: Project: login, Configuration: Debug Win32
------ 1> stdafx.cpp 1> login.cpp 1>c:\users\mycomm\desktop\gallery\c++\login\login\login.cpp(12): error
C2065: 'cout' : undeclared identifier
1>c:\users\mycomm\desktop\gallery\c++\login\login\login.cpp(12): error
C2065: 'endl' : undeclared identifier
1>c:\users\mycomm\desktop\gallery\c++\login\login\login.cpp(13): error
C2065: 'cout' : undeclared identifier
1>c:\users\mycomm\desktop\gallery\c++\login\login\login.cpp(13): error
C2065: 'endl' : undeclared identifier
1>c:\users\mycomm\desktop\gallery\c++\login\login\login.cpp(14): error
C2065: 'cout' : undeclared identifier
1>c:\users\mycomm\desktop\gallery\c++\login\login\login.cpp(14): error
C2065: 'endl' : undeclared identifier
1>c:\users\mycomm\desktop\gallery\c++\login\login\login.cpp(15): error
C2065: 'cout' : undeclared identifier
1>c:\users\mycomm\desktop\gallery\c++\login\login\login.cpp(15): error
C2065: 'endl' : undeclared identifier
1>c:\users\mycomm\desktop\gallery\c++\login\login\login.cpp(16): error
C2065: 'cin' : undeclared identifier
1>c:\users\mycomm\desktop\gallery\c++\login\login\login.cpp(17): error
C2065: 'cout' : undeclared identifier
1>c:\users\mycomm\desktop\gallery\c++\login\login\login.cpp(17): error
C2065: 'endl' : undeclared identifier
1>c:\users\mycomm\desktop\gallery\c++\login\login\login.cpp(18): error
C2065: 'cin' : undeclared identifier
1>c:\users\mycomm\desktop\gallery\c++\login\login\login.cpp(24): error
C2065: 'cout' : undeclared identifier
1>c:\users\mycomm\desktop\gallery\c++\login\login\login.cpp(24): error
C2065: 'endl' : undeclared identifier
1>c:\users\mycomm\desktop\gallery\c++\login\login\login.cpp(30): error
C2146: syntax error : missing ';' before identifier 'cout'
1>c:\users\mycomm\desktop\gallery\c++\login\login\login.cpp(30): error
C2065: 'cout' : undeclared identifier
1>c:\users\mycomm\desktop\gallery\c++\login\login\login.cpp(30): error
C2065: 'endl' : undeclared identifier
1>c:\users\mycomm\desktop\gallery\c++\login\login\login.cpp(32): error
C2143: syntax error : missing ';' before '}'
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
please review my code and help

Answer 1

The compiler does not recognise cout in this context.
You should refer the scope of cout with the scope operator ::
cout is part of the std namespace.
So wherever you have cout, substitute it with std::cout.
The same is part with endl -> std::endl. The same applies to cin -> std::cin. Alternatively use '\n' instead of std::endl.
Just for further knowledge:
You could add using namespace std; in the top of your code. But, it is not normally suggested because of the best answer provided in this question.
And some advice:
Your switch statement is redundant, since you only evaluate if a value is ONE SINGLE option. You can change it with a normal if statement and then nest your existing if statement inside. Check switch statement documentation to see when it is more appropriate to use it.