Question

language c++(Data structure) You have to read a file and store a data in character array ( you cant initialize a character array, you have to code generically) code must be generic u must read a file onece u cant use built in function etc string, code in classes if u initialized a char array or ur code doesn't run i will dislike and report u

you can use link list to store data

Answer 1

Please find the answer below.
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#include <iostream>
#include <fstream>

using namespace std;

//struct node for link
template<typename Type>
struct node
{
   Type data;
   node *next;
};

//single list

template<typename Type>
class list
{
private:
   node<Type> *head, *tail;
public:
   list()
   {
       head=NULL;
       tail=NULL;
   }

   void add(Type value)
   {
       node<Type> *temp=new node<Type>;
       temp->data=value;
       temp->next=NULL;
       if(head==NULL)
       {
           head=temp;
           tail=temp;
           temp=NULL;
       }
       else
       {
           tail->next=temp;
           tail=temp;
       }
   }

   //display link
   void display()
   {
       cout<<"\nItems : ";
       node<Type> *temp=new node<Type>;
       temp=head;
       while(temp!=NULL)
       {
           cout<<temp->data<<" ";
           temp=temp->next;
       }
       cout<<endl;
   }

};

int main()

{
   list<char> myQueue;

   ifstream infile;
   string line;//for read line
   string fileName;
   cout<<"Enter file name : ";
   cin>>fileName;
   cout<<"Loading the file........"<<endl;
   infile.open (fileName); //name of file here. plz mention Complete path if file is not at root
   if (infile.is_open()) //if file opened
   {
       char c;
       while(infile>>c ) { //get row from text file
           myQueue.add(c);
       }
       infile.close(); //close file
       cout<<"File scan done........"<<endl;
   }
   else //if file not found show the below message
   {
       cout << "Sorry, we could not find the file." << endl;
   }
   cout<<"*************************************\n\n";
   cout<<"Content of the file is : "<<endl;
   myQueue.display();

   return 0;
}

numbers.txt

1 2 3
3 4 5
5 6 7
7 8 9

output