Problem	shoes
User	Xiaoyang
Submission Time	2023-11-22 22:41:58
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

shoes.cpp: In function ‘long long int count_swaps(std::vector<int>)’:
shoes.cpp:44:10: error: ‘s’ was not declared in this scope
44 | ll n=SZ(s)/2;
| ^
shoes.cpp:17:20: note: in definition of macro ‘SZ’
17 | #define SZ(x) (int(x.size()))
| ^