Submission #604254

#	Time	Username	Problem	Language	Result	Execution time	Memory
604254		HunterXD	Arranging Shoes (IOI19_shoes)	C++17	Compilation error	0 ms	0 KiB

shoes

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<ll, ll> pl;
typedef double long dl;

#define f first
#define s second
#define pb push_back
#define sz(x) int((x).size())
#define all(x) begin(x), end(x)
#define ts to_string
#define lb lower_bound
#define ub upper_bound
#define yes cout << 'Y' << 'E' << 'S' << endl
#define no cout << 'N' << 'O' << endl
#define nd "\n"

const int pmod = 998244353;
const int mod = 1e9 + 7;
const ll inf = 1e18;

ll count_swaps(vector<ll> shoes) {
  if (shoes[0] > 0 && shoes.size() == 2) {
    return 1;
  }
  return 0;
}

void solve() {
  ll n;
  cin >> n;

  vector<ll> a(n, 0);

  for (ll i = 0; i < n; i++) cin >> a[i];

  cout << count_swaps(a) << endl;
}

int main() {
  ios_base::sync_with_stdio(false), cin.tie(0), cout.tie(0);
  ll t = 1;
  while (t--) solve();
  return 0;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccv2FusE.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc2BE8mD.o:shoes.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccv2FusE.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