Submission #676688

#	Time	Username	Problem	Language	Result	Execution time	Memory
676688		LucaLucaM	Easter Eggs (info1cup17_eastereggs)	C++17	Compilation error	0 ms	0 KiB

eastereggs

#include <bits/stdc++.h>

using namespace std;

int query(vector < int > islands)
{
    cout << "? ";
    for (int x : islands)
        cout << x << ' ';
    cout << '\n';

    int ans;
    cin >> ans;
    return ans;
}

vector<int>v[513];
vector<int>order;
void dfs (int x, int par)
{
    order.push_back(x);
    for (int i : v[x])
    {
        if (i == par)
            continue;
        dfs(i, x);
    }
}

int findEgg(int N, vector < pair < int, int > > bridges)
{
    for (pair<int, int>p : bridges)
    {
        v[p.first].push_back(p.second);
        v[p.second].push_back(p.first);
    }

    dfs(1, -1);

    int l=1, r=N;
    while (l < r)
    {
        int mid = (l + r) / 2;

        vector<int>curr;
        for (int i=0; i<mid; i++)
            curr.push_back(order[i]);

        if (query(curr))
            r = mid;
        else
            l = mid + 1;
    }

    return order[r-1];
}

int main()
{
    int N = 5;
    vector<pair<int, int>>bridges = {{1, 2}, {1, 3}, {2, 4}, {4, 5}};

    cout << findEgg(N, bridges);

    return 0;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/cczd6XtK.o: in function `query(std::vector<int, std::allocator<int> >)':
grader.cpp:(.text+0x0): multiple definition of `query(std::vector<int, std::allocator<int> >)'; /tmp/cc7neFzM.o:eastereggs.cpp:(.text+0x50): first defined here
/usr/bin/ld: /tmp/cczd6XtK.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc7neFzM.o:eastereggs.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status