Cod sursa(job #1637400)

Utilizator TibiraducanuTiberiu Raducanu Tibiraducanu Data 7 martie 2016 17:02:49
Problema Cerere Scor 30
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.99 kb
#include <fstream>
#include <vector>
using namespace std;

const int NMAX=100005;

vector <int> G[NMAX];
int v[NMAX],d[20][NMAX],solve[NMAX];

void dfs(int x)
{
    int a=v[x],b=x;

    if(a==0) solve[x]=0;
    else
    {
        for(int i=0;i<=10;i++)
            if(a&(1<<i)) b=d[i][b];

        solve[x]=solve[b]+1;
    }


    for(register int i=0;i<(int)G[x].size();i++)
    {
        int y=G[x][i];
        dfs(y);
    }
}

int main()
{
    ifstream in("cerere.in");
    ofstream out("cerere.out");

    int n,a,b,i,j;

    in>>n;
    for(register int i=1;i<=n;i++) in>>v[i];

    for(register int i=1;i<n;i++)
    {
        in>>a>>b;
        G[a].push_back(b);
        d[0][b]=a;
    }

    for(i=1;i<=10;i++)
        for(register int j=1;j<=n;j++)
            d[i][j]=d[i-1][d[i-1][j]];

    for(register int i=1;i<=n;i++)
        if(d[0][i]==0) dfs(i);

    for(register int i=1;i<=n;i++) out<<solve[i]<<" ";
    printf("\n");

    return 0;
}