Submission #589747

#	Time	Username	Problem	Language	Result	Execution time	Memory
589747		shrimb	Arranging Shoes (IOI19_shoes)	C++17	Compilation error	0 ms	0 KiB

shoes

#include "shoes.h"
#include <cstdio>
#include <cassert>

using namespace std;

int main() {
	int n;
	assert(1 == scanf("%d", &n));
	vector<int> S(2 * n);
	for (int i = 0; i < 2 * n; i++)
		assert(1 == scanf("%d", &S[i]));
	fclose(stdin);

	long long result = count_swaps(S);

	printf("%lld\n", result);
	fclose(stdout);
	return 0;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccKBRf9a.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccCgU8Db.o:shoes.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccCgU8Db.o: in function `main':
shoes.cpp:(.text.startup+0x185): undefined reference to `count_swaps(std::vector<int, std::allocator<int> >)'
/usr/bin/ld: /tmp/ccKBRf9a.o: in function `main':
grader.cpp:(.text.startup+0x2a8): undefined reference to `count_swaps(std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status