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Cod sursa(job #218445)
#include<stdio.h>
//#include<conio.h>
struct nod
{int info;
nod *urm;};
int n,*vector,i,fiu,parinte,nivel=0,*raspuns,NoduriVizitate,index,*stiva;
nod **ListaFii,*radacina;
bool *vizitat,*predecesori;
void df_r1(int NodCurent)
{
stiva[++nivel]=NodCurent;
if(vector[NodCurent])
raspuns[NodCurent]=raspuns[stiva[nivel-vector[NodCurent]]]+1;
else
raspuns[NodCurent]=0;
//printf("%d ni=%d\n",NodCurent,nivel);getch();
nod *p;
p=ListaFii[NodCurent];
vizitat[NodCurent]=1;
while(p)
{
if(!vizitat[p->info])
df_r1(p->info);
nivel--;
p=p->urm;
}
}
int main()
{//clrscr();
FILE *pFile=fopen("cerere.in","r");
FILE *pFileOut=fopen("cerere.out","w");
fscanf(pFile,"%d",&n);
predecesori=new bool[n+1];
ListaFii=new nod*[n+1];
vector=new int[n+1];
stiva=new int[n+1];
raspuns=new int[n+1];
vizitat=new bool[n+1];
NoduriVizitate=n;
for(i=1;i<=n;i++)
{fscanf(pFile,"%d",&vector[i]);
ListaFii[i]=0;vizitat[i]=0;predecesori[i]=0;}
for(i=1;i<=n-1;i++)
{
fscanf(pFile,"%d %d",&parinte,&fiu);
predecesori[fiu]=1;
nod *aux=new nod;
aux->urm=ListaFii[parinte];
aux->info=fiu;
ListaFii[parinte]=aux;
}
bool gasit=0;
for(i=1;i<=n && !gasit;i++)
if(predecesori[i]==0)
{index=i;gasit=1;}
//printf("radacina este %d\n",index);getch();
df_r1(index);
for(i=1;i<=n;i++)
fprintf(pFileOut,"%d ",raspuns[i]);
delete predecesori;
delete ListaFii;
delete raspuns;
delete stiva;
delete vector;
delete vizitat;
fclose(pFile);
fclose(pFileOut);
return 0;
}