Cod sursa(job #2411524)

Utilizator adimiclaus15Miclaus Adrian Stefan adimiclaus15 Data 20 aprilie 2019 20:33:17
Problema Cerere Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.88 kb
#include <iostream>
#include <fstream>
#include <vector>
using namespace std;
ifstream f("cerere.in");
ofstream g("cerere.out");
vector <int> a[100005];
int n,v[100005],grad[100005],viz[100005],stiva[100005],rez[100005];
void dfs(int x,int nr)
{
    int i;
    stiva[nr]=x;
    if(v[x]!=0)
    {
        rez[x]=1+rez[stiva[nr-v[x]]];
    }
    viz[x]=1;
    for(i=0;i<a[x].size();i++)
    {
        if(viz[a[x][i]]==0)
        {
            dfs(a[x][i],nr+1);

        }
    }
}
int main()
{
    int i,x,y;
    f>>n;
    for(i=1;i<=n;i++)
    {
        f>>v[i];
    }
    for(i=1;i<=n;i++)
    {
        f>>x>>y;
        grad[y]++;
        a[x].push_back(y);
        a[y].push_back(x);
    }
    for(i=1;i<=n;i++)
    {
        if(grad[i]==0)
        {
            dfs(i,1);
        }
    }
    for(i=1;i<=n;i++)
        g<<rez[i]<<" ";
    return 0;
}