unsortedlistsearch

#include<iostream>
using namespace std;
int main()
{
     int data[100],link[100];
     int i,n,s,item,ptr;
     cin>>n;
     for(i=1;i<=n;i++)
     {
     cin>>data[i];
     }
     for(i=1;i<=n;i++)
     {
     cin>>link[i];
     }
     cin>>s>>item;
     if(item<data[s])
     {
          cout<<"unsuccessful";
 }
  else
          {
     ptr=s;
     while(ptr!=-1)
     {
          if(item==data[ptr])
         {

         cout<<ptr;
          break;
     }
          else if(item>data[ptr])
               ptr=link[ptr];
          else
               cout<<"unsuccssful";
     }
}
}