Problem	duckduckgoose
User	gOrDoN
Submission Time	2026-11-06 15:33:42
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

duckduckgoose.cpp: In function ‘int main()’:
duckduckgoose.cpp:2:12: error: ‘cin’ was not declared in this scope; did you mean ‘std::cin’?
2 | int main(){cin>>n;cout<<n;}
| ^~~
| std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:75,
from duckduckgoose.cpp:1:
/usr/include/c++/9/iostream:60:18: note: ‘std::cin’ declared here
60 | extern istream cin; /// Linked to standard input
| ^~~
duckduckgoose.cpp:2:17: error: ‘n’ was not declared in this scope; did you mean ‘yn’?
2 | int main(){cin>>n;cout<<n;}
| ^
| yn
duckduckgoose.cpp:2:19: error: ‘cout’ was not declared in this scope; did you mean ‘std::cout’?
2 | int main(){cin>>n;cout<<n;}
| ^~~~
| std::cout
In file included from /usr/include/x