Submission #436143

#	Time	Username	Problem	Language	Result	Execution time	Memory
436143		LouayFarah	Library (JOI18_library)	C++14	0 / 100	331 ms	492 KiB

library

#include "bits/stdc++.h"
#include "library.h"
 
using namespace std;
 
#define pb push_back

void Solve(int n)
{
    vector<int> m(n);
    vector<int> adj[n+1];
    for(int i = 1; i<=n; i++)
    {
        for(int j = i+1; j<=n; j++)
        {
            m.assign(n, 0);
            m[i-1] = 1, m[j-1] = 1;

            int curr  = Query(m);

            if(curr==2)
            {
                adj[i].pb(j);
                adj[j].pb(i);
            }
        }
    }

    /*for(int i = 1; i<=n; i++)
    {
        cout << i << ": ";
        for(auto v: adj[i])
            cout << v << ' ';
        cout << endl;
    }*/

    vector<int> res(n, 0);
    vector<bool> visited(n+1, false);

    for(int i = 1; i<=n; i++)
    {
        if((int)adj[i].size()==1)
        {
            res[0] = i;
            visited[res[0]] = true;
            break;
        }
    }

    for(int i = 1; i<=n; i++)
    {
        if((int)adj[i].size()==1&&res[0]!=i)
        {
            res[n-1] = i;
            visited[res[n-1]] = true;
            break;
        }
    }

    for(int i = 1; i<n-1; i++)
    {
        int x = res[i-1];
        if((int)adj[x].size()==1)
        {
            res[i] = adj[x][0];
            visited[res[i]] = true;
        }
        else
        {
            for(auto v: adj[x])
            {
                if(visited[v])
                    continue;
                res[i] = v;
                visited[v] = true;
            }
        }
    }

    Answer(res);
    return;
}

• Subtask 1: 0 / 19
• Subtask 2: 0 / 81