Submission #886669

#	Time	Username	Problem	Language	Result	Execution time	Memory
886669		vjudge1	Arranging Shoes (IOI19_shoes)	C++17	Compilation error	0 ms	0 KiB

shoes

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#include <bits/stdc++.h>

using namespace std;
#define int long long
#define ff first
#define ss second

int count_swaps(vector<int> a)
{
    int n = a.size();
    if (a[0] > 0)
        return 1LL;
    return 0LL;
}

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<long long int>)':
shoes.cpp:18:9: warning: unused variable 'n' [-Wunused-variable]
   18 |     int n = a.size();
      |         ^
/usr/bin/ld: /tmp/ccenBSIS.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