SUPUSII LUI STALIN
Robert: #include <iostream>
#include <fstream>
using namespace std;

ifstream fin("arbore.in");
ofstream fout("arbore.out");

int n , k , a[105][105], t[105], v[105];

void dfs(int k , int tata)
{
    v[k] = 1, t[k] = tata;
    for(int i = 1 ; i <= n ; ++i)
        if(v[i] == 0 && a[k][i] == 1)
            dfs(i , k);
}

int main()
{
    fin >> n >> k;
    for(int p = 1 ; p < n ; p ++)
    {
        int i , j;
        fin >> i >> j;
        a[i][j] = a[j][i] = 1;
    }
    dfs(k , 0);
    for(int i = 1 ; i <= n ; ++i)
        fout << t[i] << " ";
    return 0;
}

2019-03-26 20:21:11