Pagini recente » Cod sursa (job #3250023) | Cod sursa (job #1169457) | Cod sursa (job #2300139) | Cod sursa (job #1406391) | Cod sursa (job #927008)
Cod sursa(job #927008)
#include<fstream>
#include<vector>
#include<algorithm>
#define NMAX 100005
using namespace std;
int n,v[NMAX],str[20][NMAX],A[NMAX];
vector<int> G[NMAX],topo;
void read()
{
ifstream fin("cerere.in");
fin>>n;
int i,x,y;
for(i=1;i<=n;i++)
fin>>v[i];
for(i=1;i<n;i++)
{
fin>>x>>y;
str[0][y]=x;
G[x].push_back(y);
}
fin.close();
}
void DFS(int nod)
{
topo.push_back(nod);
for(size_t i=0;i<G[nod].size();i++)
DFS(G[nod][i]);
}
inline void stramosi()
{
for(size_t i=0;i<topo.size();i++)
for(int j=1;(1<<j)<=n;j++)
str[j][topo[i]]=str[j-1][str[j-1][topo[i]]];
}
inline int query(int x,int y)
{
if(!y)
return x;
int i;
for(i=0;(1<<i)<=y;i++);
i--;
y-=(1<<i);
x=str[i][x];
return query(x,y);
}
int TATA()
{
for(int i=1;i<=n;i++)
if(!str[0][i])
return i;
return 0;
}
void solve()
{
DFS(TATA());
stramosi();
for(size_t i=0,x;i<topo.size();i++)
if(v[topo[i]])
{
x=query(topo[i],v[topo[i]]);
A[topo[i]]=A[x]+1;
}
}
void print()
{
ofstream fout("cerere.out");
for(int i=1;i<=n;i++)
fout<<A[i]<<' ';
fout.close();
}
int main()
{
read();
solve();
print();
return 0;
}