Submission #442768

#	Time	Username	Problem	Language	Result	Execution time	Memory
442768		Lam_lai_cuoc_doi	Coins (IOI17_coins)	C++17	Compilation error	0 ms	0 KiB

coins

#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using ld = long double;
using ull = unsigned long long;

constexpr bool typetest = 0;
constexpr int N = 1e5 + 5;

#define bit(i, x) (((x) >> (i)) & 1)

vector<int> coins_flip(vector<int> b, int c)
{
    vector<int> ans;
    for (int i = 0; i < 6; ++i)
        if (b[i] != bit(i, c))
            ans.emplace_back(i);
    return ans;
}

int find_coin(vector<int> b)
{
    int ans(0);
    for (int i = 0; i < 5; ++i)
        if (b[i])
            ans |= 1 << i;

    return ans;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccO24IVB.o: in function `main':
grader.cpp:(.text.startup+0x3c3): undefined reference to `coin_flips(std::vector<int, std::allocator<int> >, int)'
collect2: error: ld returned 1 exit status