Submission #1172528

#	Time	Username	Problem	Language	Result	Execution time	Memory
1172528		versesrev	Arranging Shoes (IOI19_shoes)	C++20	Compilation error	0 ms	0 KiB

shoes

// 22:03
#include <vector>

long long count_swap(std::vector<int> ss) {
  long long n = ss.size();
  return n * (n - 1) / 2;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccWWkqHw.o: in function `main':
grader.cpp:(.text.startup+0x289): undefined reference to `count_swaps(std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status