Problem	helloworld
User	plka
Submission Time	2025-02-17 16:57:24
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

helloworld.cpp:3:1: error: ‘usign’ does not name a type
3 | usign namespace std;
| ^~~~~
helloworld.cpp: In function ‘int main()’:
helloworld.cpp:6:2: error: ‘cout’ was not declared in this scope; did you mean ‘std::cout’?
6 | cout <<"Hello world";
| ^~~~
| std::cout
In file included from helloworld.cpp:1:
/usr/include/c++/9/iostream:61:18: note: ‘std::cout’ declared here
61 | extern ostream cout; /// Linked to standard output
| ^~~~