Submission #257273

#	Time	Username	Problem	Language	Result	Execution time	Memory
257273		shrek12357	Carnival (CEOI14_carnival)	C++14	100 / 100	9 ms	384 KiB

carnival

#include <iostream>
#include <algorithm>
#include <vector>
#include <map>
#include <string>
#include <cmath>
#include <climits>
using namespace std;
 
const int nmax=155;
 
int ask(vector<int> v)
{
    cout<<v.size();
    for(auto k:v)cout<<" "<<k;
    cout<<endl;
    int ret;
    cin>>ret;
    return ret;
}
 
int output[nmax];
 
vector<int> my_merge(vector<int> v,int val)
{
    v.push_back(val);
    return v;
}
int main()
{
    int n;
    cin>>n;
 
    vector<int> diff={};
    for(int i=1;i<=n;i++)
    {
        if(ask(my_merge(diff,i))==diff.size()+1){diff.push_back(i);output[i]=diff.size();}
        else
        {
            vector<int> active=diff;
 
            while(active.size()>1)
            {
                vector<int> help[2];
 
                help[0]={};
                help[1]={};
 
                for(int j=0;j<active.size();j++)
                    help[j%2].push_back(active[j]);
 
                if(ask(my_merge(help[0],i))==help[0].size())active=help[0];
                else active=help[1];
            }
            output[i]=output[active[0]];
        }
    }
 
    cout<<0;for(int i=1;i<=n;i++)cout<<" "<<output[i];cout<<endl;
    return 0;
}

Compilation message (stderr)

carnival.cpp: In function 'int main()':
carnival.cpp:37:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if(ask(my_merge(diff,i))==diff.size()+1){diff.push_back(i);output[i]=diff.size();}
            ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
carnival.cpp:49:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                 for(int j=0;j<active.size();j++)
                             ~^~~~~~~~~~~~~~
carnival.cpp:52:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                 if(ask(my_merge(help[0],i))==help[0].size())active=help[0];
                    ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~

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