Submission #1309519

#	Time	Username	Problem	Language	Result	Execution time	Memory
1309519		erering	Carnival (CEOI14_carnival)	C++20	100 / 100	3 ms	336 KiB

carnival

#include <bits/stdc++.h>
using namespace std;
#define int long long
//#define endl '\n'
#define pb push_back
const int N=2e5+5,MAXA=1e6+5,inf=1e9,MOD=1e9+7;
signed main(){
    //ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    int n; cin>>n;
    int ans[n+1];
    ans[1]=1;
    vector<int> uniq={1};
    for(int i=2;i<=n;i++){
        cout<<uniq.size()+1<<" ";
        for(auto j:uniq)cout<<j<<' ';
        cout<<i<<endl;
        int sol; cin>>sol;
        if(sol==uniq.size()+1){
            ans[i]=uniq.size()+1; uniq.pb(i);
            continue;
        }
        int l=0,r=uniq.size()-1;
        while(l<r){
            int mid=(l+r)/2;
            cout<<mid-l+2<<' ';
            for(int j=l;j<=mid;j++)cout<<uniq[j]<<' ';
            cout<<i<<endl;
            cin>>sol;
            if(sol==mid-l+2)l=mid+1;
            else r=mid;
        }
       // cout<<uniq[l]<<' '<<l<<' '<<r<<endl;
        ans[i]=ans[uniq[l]];
    }
    cout<<0<<' ';
    for(int i=1;i<=n;i++)cout<<ans[i]<<' ';
    return 0;
}

• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20