Problem working on a GNU Compiler....plss help

Hey everyone,
I am used to working on turbo c++....and i thus know nothing about coding in gnu compilers...

Please help me on the following program (binary search for k nos. in an array of n nos.) i have written on DEV++....I am not able to see the output.(i checked the output screen also and final result screen also....)..Please Help....

//BINAR SEARCH FOR 'K' NOS. IN A SORTED ARRAY OF 'N' ELEMENTS.

Code:

#include<iostream>
using namespace std;

int main()
{
    int n,j,k,a[50],b[50],i,beg,end,mid;     
    int p=0;                

 cout<<"enter the no. of elements in the array ";
 cin>>n;
 
 cout<<"enter the no. of elements  to be  searched in the array ";
 cin>>k;

 cout<<"enter the elements : ";
 for (i=0;i<n;i++)
 cin>>a[i];

 cout<<"enter nos. to be searched ";
 for (j=0;j<k;j++)
 cin>>b[i];
 
 i=0;
 while(i<k)
 {
  beg =0;
  end = n-1;
  p=0;

  while (beg<=end)
   {
    mid= (beg + end) /2;
    if (b[i]==a[mid])
      {
       p=1;
       break;
      }
      else if(b[i] > a[mid])
	 beg = mid + 1;
       else
	end = mid - 1;
   }
  i++;

  if (p==0)
    cout<<" N ";
   else
    cout<<" Y ";

 }

 system("pause");          
     
     
 return 0;

}