Cod sursa(job #2958943)

Utilizator tomaionutIDorando tomaionut Data 29 decembrie 2022 11:50:40
Problema Cerere Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.85 kb
#include <bits/stdc++.h>

using namespace std;

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

int n, ancestor[100005], viz[100005], dp[100005], level[100005];
vector <int> a[100005];

void Dfs(int x, int niv, int last)
{
    level[niv] = x;
    if (ancestor[x])
        dp[x] = 1 + dp[level[niv - ancestor[x]]];
    
    for (auto w : a[x])
        if (w != last)
            Dfs(w, niv + 1, x);
}

int main()
{
    int i, x, y;
    fin >> n;
    for (i = 1; i <= n; i++)
        fin >> ancestor[i];

    for (i = 1; i <= n; i++)
    {
        fin >> x >> y;
        a[x].push_back(y);
        viz[y] = 1;
    }

    for (i = 1; i <= n; i++)
        if (viz[i] == 0)
        {
            Dfs(i, 1, 0); /// root
            break;
        }

    for (i = 1; i <= n; i++)
        fout << dp[i] << " ";

    return 0;
}