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Cod sursa(job #658106)
#include <fstream>
#include <vector>
#define pb push_back
#define NMAX 100001
using namespace std;
ifstream f("cerere.in");
ofstream g("cerere.out");
int n,i,k[NMAX],mny[NMAX],root,level[NMAX],a,b;
vector<int> A[NMAX];
void dfs(int nod,int lvl) {
vector<int>::iterator i;
level[lvl]=nod;
mny[nod]=1+mny[level[lvl-k[nod]]];
if (!k[nod]) --mny[nod];
for (i=A[nod].begin();i!=A[nod].end();i++)
dfs(*i,lvl+1);
}
int main () {
f >> n;
for (i=1;i<=n;i++)
f >> k[i];
root=(n*n+n)/2;
for (i=1;i<n;i++) {
f >> a >> b;
A[a].pb(b);
root-=b;
}
dfs(root,1);
for (i=1;i<=n;i++) g << mny[i] << ' ';
g << '\n';
f.close();g.close();
return 0;
}