Submission #918020

#	Time	Username	Problem	Language	Result	Execution time	Memory
918020		Elwino008	Easter Eggs (info1cup17_eastereggs)	C++17	Compilation error	0 ms	0 KiB

eastereggs

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

#define endl '\n'
#define pii pair<int, int>
#define pb push_back
#define F first
#define S second
#define ll long long
#define int ll
#define io ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define M_PI 3.14159265358979323846
#define all(v) v.begin(), v.end()
#define pss pair<string, string>
#define no cout<<"NO"<<endl;
#define yes cout<<"YES"<<endl;
#define imp cout<<-1<<endl;
#define flu cout.flush();

const int N = 100009;
const int mod = 1e9+7;

int n, used[555];
vector<int>a[555];
vector<int>nodes;

void dfs(int node){
    used[node]=1;
    nodes.pb(node);
    for(int i : a[node]){
        if(used[i]==0){
            dfs(i);
        }
    }
}

signed main(){
    io;
    cin>>n;
    for(int i=0; i<n-1; i++){
        int x, y;
        cin>>x>>y;
        a[x].pb(y);
        a[y].pb(x);
    }
    dfs(1);
    int l=1, r=n;
    while(l<=r){
        int mid=(l+r)/2;
        vector<int>v;
        for(int i=l; i<=mid; i++){
            v.pb(i);
        }
        cout<<v.size()<<" ";
        for(int i : v){
            cout<<i<<" ";
        }
        cout<<endl;
        flu;
        int ans;
        cin>>ans;
        if(ans==1){
            r=mid-1;
        }
        else{
            l=mid+1;
        }
    }
    cout<<r+1<<endl;
    flu;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccgJamLd.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccqkgoNb.o:eastereggs.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccgJamLd.o: in function `main':
grader.cpp:(.text.startup+0x1e6): undefined reference to `findEgg(int, std::vector<std::pair<int, int>, std::allocator<std::pair<int, int> > >)'
collect2: error: ld returned 1 exit status