Problem	WA1
User	MegaG
Submission Time	2025-10-05 19:19:19
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

WA1.cpp:13:17: error: ‘atd’ is not a namespace-name
13 | using namespace atd;
| ^~~
WA1.cpp: In function ‘int main()’:
WA1.cpp:16:5: error: ‘ios’ has not been declared
16 | ios::sync_with_stdio(false);
| ^~~
WA1.cpp:17:5: error: ‘cin’ was not declared in this scope; did you mean ‘std::cin’?
17 | cin.tie(0);
| ^~~
| std::cin
In file included from WA1.cpp:1:
/usr/include/c++/9/iostream:60:18: note: ‘std::cin’ declared here
60 | extern istream cin; /// Linked to standard input
| ^~~
WA1.cpp:18:2: error: ‘cout’ was not declared in this scope; did you mean ‘std::cout’?
18 | cout.tie(0);
| ^~~~
| std::cout
In file included from WA1.cpp:1:
/usr/include/c++/9/iostream:61:18: note: ‘std::cout’ declared here
61 | extern ostream cout; /// Linked to standard output
| ^~~~
WA1.cpp:23:5: e