Problem	party_noi
User	liliputian
Submission Time	2026-10-02 23:41:31
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

party_noi.cpp: In function ‘int main()’:
party_noi.cpp:8:14: error: ‘floor’ was not declared in this scope
8 | L friends = floor((n + 1) / 2);
| ^~~~~