Cod sursa(job #2124597)

Utilizator Laura_CorneiLaura Maria Cornei Laura_Cornei Data 7 februarie 2018 13:28:26
Problema Cerere Scor 50
Compilator cpp Status done
Runda Arhiva de probleme Marime 1 kb
#include <fstream>
#include <vector>
#define nmax 100005
using namespace std;
fstream f1("cerere.in", ios::in);
fstream f2("cerere.out", ios::out);
int n, k[nmax], t[nmax], rad, viz[nmax], g[nmax];
vector <int> v[nmax];
void citire()
{
    int i,j, x, y, nr, nod;
    f1>>n;
    for(i=1; i<=n; i++)
        f1>>k[i];
    for(i=1; i<n; i++)
    {
        f1>>x>>y;
        t[y]=x;
        v[x].push_back(y);
    }
    for(i=1; i<=n; i++)
        if(t[i]==0) {rad=i; break;}

    ///identificare stramosi
    for(i=1; i<=n; i++)
    {
        nr=k[i];
        nod=i;
        for(j=1; j<=nr; j++)
            nod=t[nod];
        k[i]=nod;
    }
}
void dfs(int nod)
{
    g[nod]=g[k[nod]]+1;
    viz[nod]=1;
    for(auto it=v[nod].begin(); it!=v[nod].end(); ++it)
        if(!viz[*it])
    {
        dfs(*it);
    }
}
void afisare()
{
    int i;
    for(i=1; i<=n; i++)
        f2<<g[i]-1<<' ';
}
int main()
{
    citire();
    dfs(rad);
    afisare();
    return 0;
}