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Cod sursa(job #483672)
#include<fstream.h>
#include<vector>
const long NMAX=100005;
using namespace std;
vector<int> a[NMAX];
long r,n,k[NMAX],v[NMAX],st[NMAX],nr;
void dfs(long p)
{long i;
v[p]=0;
st[++nr]=p;
if(k[p]!=0)
k[p]=1+k[st[nr-k[p]]];
for(i=0;i<a[p].size();++i)
if(v[a[p][i]] )
dfs(a[p][i]);
--nr;
}
int main()
{ifstream fin("cerere.in");
ofstream fout("cerere.out");
fin>>n;
long i,y,x;
for(i=1;i<=n;++i)
fin>>k[i];
for(i=1;i<=n-1;++i)
{fin>>x>>y;
a[x].push_back(y);v[y]=1;
}
for(i=1;i<=n;++i)
if(v[i]==0)
break;
dfs(i);
for(i=1;i<=n;++i)
fout<<k[i]<<' ';
fout<<'\n';
fout.close();
return 0;
}