insertion in array in c++

Insertion in array 

#include<iostream.h>                                                          

#include<process.h>      
                                                      

int findpos(int [], int, int);       
                                         

void main()                                                                   

{                                                                              

      int ar[50],item,n,index;                                                    

      cout<<" how many elements do you want to create array with?...\n";       

      cin>>n;                                                                      

      cout<<"\n enter array elements(must be sorted in asc order)\n";              

      for(int i=0; i<n; i++)                                                           

      cin>>ar[i];                                                               

      char ch='y';                                                               

      while(ch=='y'||ch=='Y')                                                     

     {                                                                               

           cout<<"\n enter element to be inserted...";                                  

           cin>>item;                                                                   

           if(n==50)                                                                     

          {   cout<<"overflow!!!\n";                                                      

               exit(1);                                                                    

          }

          index= findpos(ar,n,item);                                                   

          for(i=n; i>index; i--)                                                            

         {   ar[i]=ar[i-1];}                                                             

              ar[index]=item;                                                             

              n+=1;                                                                      

              cout<<"\n want to insert more elements? (y/n)...";                           

              cin>>ch;                                                                 

         }                                                                            

        cout<<"the array now is as shown below...\n";                                 

        for(i=0; i<n; i++)                                                               

        cout<<ar[i]<<" ";                                                        

        cout<<endl;                                                                

    }

 }            

                                                         

  int findpos(int ar[], int size, int item)                                     

   {                                                                               

          int pos;                                                                      

          if(item<ar[0])                                                               

          pos=0;                                                                       

          else                                                                          

          {                                                                               

                for(int i=0; i<size-1; i++)

                pos=0;              
          }
  }