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Cod sursa(job #983304)
#include<fstream>
#define N 100100
#include<vector>
using namespace std;
ifstream f("cerere.in");
ofstream g("cerere.out");
int sol[N],s[N],i,x,y,t,T[N],k[N],n;
vector<int> v[N];
void dfs(int x)
{
s[++t]=x;
if(k[x])
sol[x]=sol[s[t-k[x]]]+1;
for(int i=0;i<v[x].size();++i)
dfs(v[x][i]);
--t;
}
int main ()
{
f>>n;
for(i=1;i<=n;++i)
f>>k[i];
for(i=1;i<n;++i)
{
f>>x>>y;
v[x].push_back(y);
T[y]=1;
}
for(i=1;i<=n;++i)
if(!T[i])
{
dfs(i);
break;
}
for(i=1;i<=n;++i)
g<<sol[i]<<" ";
return 0;
}