Submission #1293208

#	Time	Username	Problem	Language	Result	Execution time	Memory
1293208		alexrana2626	World Map (IOI25_worldmap)	C++20	Compilation error	0 ms	0 KiB

worldmap

#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);

    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;
}

Compilation message (stderr)

worldmap.cpp: In function 'std::vector<std::vector<int> > create_map(int, int, std::vector<int>, std::vector<int>)':
worldmap.cpp:30:8: error: too few arguments to function 'void dfs(int, int)'
   30 |     dfs(1);
      |     ~~~^~~
worldmap.cpp:8:6: note: declared here
    8 | void dfs(int x, int p)
      |      ^~~