Problem	holeetree
User	jmuzhen
Submission Time	2026-02-12 15:08:57
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

holeetree.cpp: In function ‘int main()’:
holeetree.cpp:3:8: error: ‘cin’ was not declared in this scope; did you mean ‘std::cin’?
3 | int n;cin>>n;
| ^~~
| std::cin
In file included from holeetree.cpp:1:
/usr/include/c++/9/iostream:60:18: note: ‘std::cin’ declared here
60 | extern istream cin; /// Linked to standard input
| ^~~