Cod sursa(job #781761)

Utilizator ionut_blesneagIonut Blesneag ionut_blesneag Data 25 august 2012 00:07:33
Problema Cerere Scor 85
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.28 kb
#include<fstream>
using namespace std;

int n,i,j,k,a,b,q[100001],lg[100001],incrm,imax,ancestor;
int m[20][100001],ans[100001],nrc;
char buff1[20];
char buff2[700000];

int get_number1()
{int nrn=0;
while(buff1[nrc]<='9' && buff1[nrc]>='0')
 {nrn=10*nrn+buff1[nrc]-'0';
  nrc++;}
return nrn;
}

int get_number2()
{int nrn=0;
while(buff2[nrc]<='9' && buff2[nrc]>='0')
 {nrn=10*nrn+buff2[nrc]-'0';
  nrc++;}
return nrn;
}

int main()
{freopen("cerere.in","r",stdin);
freopen("cerere.out","w",stdout);
gets(buff1);  nrc=0;
n=get_number1();
gets(buff2);  nrc=0;
for(i=1; i<=n; i++)
  {q[i]=get_number2();  nrc++;}  
for(i=1; i<=n-1; i++)
  {gets(buff1);  nrc=0;
   a=get_number1();  nrc++;
   b=get_number1();  nrc++;
   m[0][b]=a;} 
incrm=1;
i=0;
while(incrm)
 {i++;
  incrm=0;
  for(j=1; j<=n; j++) 
    {m[i][j]=m[i-1][m[i-1][j]];
     if(m[i][j]!=0)
       incrm=1;}
  }        
imax=i-1;    

for(i=2; i<=n; i++)
 lg[i]=lg[i/2]+1;

/*for(i=0; i<=imax; i++)
 {for(j=1; j<=n; j++) 
  g<<m[i][j]<<" ";
 g<<endl;} */


for(k=1; k<=n; k++) 
{j=k; // ancestor=q[k];
while(q[j]!=0)
{ancestor=q[j];
ans[k]++;
while(ancestor)
{i=lg[ancestor];
j=m[i][j];
ancestor=ancestor-(1<<i);}
}
}

for(k=1; k<=n; k++)
 printf("%d ",ans[k]);      

return 0;}