Problem	shoes
User	TomThuy123
Submission Time	2026-01-18 11:01:36
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

/usr/bin/ld: /tmp/ccrPLPkK.o: in function `main':
grader.cpp:(.text.startup+0x27e): undefined reference to `count_swaps(std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status