Cod sursa(job #2257688)

Utilizator UnseenMarksmanDavid Catalin UnseenMarksman Data 10 octombrie 2018 12:58:31
Problema Cerere Scor 50
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.83 kb
#include <fstream>
#include <vector>
#include <cstring>
#define maxn 100002
using namespace std;

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

int n, t[maxn], dp[maxn], v[maxn], vf;

int dfs(int nod)
{
    if(!v[nod])
    {
        return 0;
    }
    int copie=v[nod],nod1=nod;
    while(copie--)
    {
        nod1=t[nod1];
    }
    if(dp[nod1]!=-1)
    {
        return dp[nod1]+1;
    }
    return dfs(nod1)+1;
}

int main()
{
    fin>>n;
    for(int i=1; i<=n; i++)
    {
        fin>>v[i];
        dp[i]=-1;
    }
    for(int i=1, x, y; i<n; i++)
    {
        fin>>x>>y;
        t[y]=x;
    }
    /*for(int i=1; i<=n; i++)
    {
        if(!t[i])
        {
            vf=i;
            break;
        }
    }*/
    for(int i=1; i<=n; i++)
    {
        dp[i]=dfs(i);
        fout<<dp[i]<<' ';
    }
    return 0;
}