제출 #1293210

#제출 시각아이디문제언어결과실행 시간메모리
1293210alexrana2626세계 지도 (IOI25_worldmap)C++20
15 / 100
1182 ms2122276 KiB
#include "worldmap.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> gr[41];
vector<int> v;

void dfs(int x, int p) 
{
    v.push_back(x);
    for (int i : gr[x]) 
    {
        if (i == p) continue;
        dfs(i, x);
        v.push_back(x);
    }
}

vector<vector<int>> create_map(int N, int M, vector<int> A, vector<int> B) 
{
    for (int i = 0; i < 41; i++) gr[i].clear();
    v.clear();

    for (int i = 0; i < M; i++) 
    {
        gr[A[i]].push_back(B[i]);
        gr[B[i]].push_back(A[i]);
    }

    dfs(1, 0);

    int K = v.size();
    vector<vector<int>> ans(K, vector<int>(K));

    for (int i = 0; i < K; i++) {
        for (int j = 0; j < K; j++) {
            ans[i][j] = v[i];
        }
    }

    return ans;
}
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