Cod sursa(job #2136174)

Utilizator NannyiMaslinca Alecsandru Mihai Nannyi Data 19 februarie 2018 18:37:38
Problema Cerere Scor 80
Compilator cpp Status done
Runda Arhiva de probleme Marime 1 kb
#include <cstdio>
#include <vector>
#include <algorithm>
#include <iostream>
#define nmax 100005
using namespace std;

FILE *f=fopen("cerere.in","r");
FILE *g=fopen("cerere.out","w");

vector<int>Q[nmax],ancestors,stk;

int n,stramos[nmax],tata[nmax],intel[nmax],ceamaiinteligenta;

void read()
{
    fscanf(f,"%d",&n);
    for (int i=1; i<=n; ++i)
        fscanf(f,"%d",&stramos[i]);
    for (int i=1; i<n; ++i)
    {
        int a,b;
        fscanf(f,"%d %d",&a,&b);
        Q[a].push_back(b);
        tata[b]=a;
    }
}

void dfs(int nod)
{
    stk.push_back(nod);
    for (auto w:Q[nod])
    {
        if (stramos[w])
            intel[w]=intel[stk[stk.size()-stramos[w]]]+1;
        dfs(w);
    }
    stk.pop_back();
}

void solve()
{
    for (int i=1; i<=n; ++i)
        if (!tata[i])
            ceamaiinteligenta=i;
    dfs(ceamaiinteligenta);
    for (int i=1; i<=n; ++i)
        fprintf(g,"%d ",intel[i]);
}

int main()
{
    read();
    solve();
    return 0;
}