Submission #944936

#	Time	Username	Problem	Language	Result	Execution time	Memory
944936		gelastropod	Chameleon's Love (JOI20_chameleon)	C++14	20 / 100	14 ms	596 KiB

chameleon

#include "chameleon.h"
#include <vector>
#include <bits/stdc++.h>

using namespace std;

namespace {

int variable_example = 1;

}  // namespace

void Solve(int N) {
    vector<vector<int>> adjlist(2 * N, vector<int>());
    for (int i = 0; i < 2 * N; i++)
    {
        for (int j = 0; j < 2 * N; j++)
        {
            if (i != j)
            {
                vector<int> a = {i + 1, j + 1};
                int b = Query(a);
                if (b == 1)
                {
                    adjlist[i].push_back(j);
                }
            }
        }
    }
    vector<bool> done(2 * N, false);
    for (int i = 0; i < 2 * N; i++)
    {
        if (adjlist[i].size() == 1 && !done[i] && !done[adjlist[i][0]])
        {
            done[i] = true;
            done[adjlist[i][0]] = true;
            Answer(i + 1, adjlist[i][0] + 1);
        }
        else if (!done[i] && !done[adjlist[i][0]])
        {
            vector<int> a = {i + 1, adjlist[i][0] + 1, adjlist[i][1] + 1};
            int b = Query(a);
            if (b == 1)
            {
                adjlist[i].erase(adjlist[i].begin() + 2);
                continue;
            }
            a = {i + 1, adjlist[i][0] + 1, adjlist[i][2] + 1};
            b = Query(a);
            if (b == 1)
            {
                adjlist[i].erase(adjlist[i].begin() + 1);
                continue;
            }
            adjlist[i].erase(adjlist[i].begin());
        }
    }
    for (int i = 0; i < 2 * N; i++)
    {
        if (adjlist[i].size() != 1)
        {
            if (adjlist[adjlist[i][0]].size() != 1 && adjlist[adjlist[i][1]].size() != 1)
            {
                if ((adjlist[adjlist[i][0]][0] == i || adjlist[adjlist[i][0]][1] == i) && !done[i] && !done[adjlist[i][0]])
                {
                    done[i] = true;
                    done[adjlist[i][0]] = true;
                    Answer(i + 1, adjlist[i][0] + 1);
                }
                else if (!done[i] && !done[adjlist[i][1]])
                {
                    done[i] = true;
                    done[adjlist[i][1]] = true;
                    Answer(i + 1, adjlist[i][1] + 1);
                }
            }
        }
    }
}

Compilation message (stderr)

chameleon.cpp:9:5: warning: '{anonymous}::variable_example' defined but not used [-Wunused-variable]
    9 | int variable_example = 1;
      |     ^~~~~~~~~~~~~~~~

• Subtask 1: 0 / 4
• Subtask 2: 20 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 36