Programming

 concatenation
#include <string.h>
#include <fstream.h>
#include <iostream.h>
int main()
{
    char line[100];
    ifstream chapter_one("new1.txt");
    ifstream chapter_two("new2.txt");
    ifstream chapter_three("new3.txt");
    ofstream book("book.txt");
    while (!chapter_one.eof()) {
        chapter_one.getline(line, 100);
        book << line << endl;
    }
    book << "*" << endl;
    while (!chapter_two.eof()) {
        chapter_two.getline(line, 100);
        book << line << endl;
    }
    book << "*" << endl;
    while (!chapter_three.eof()) {
        chapter_three.getline(line, 100);
        book << line << endl;
    }
    book << "*" << endl;
    chapter_one.close();
    chapter_two.close();
    chapter_three.close();
    book.close();
    return 0;
}

extract
 
#include <string.h>
#include <fstream.h>
#include<stdio.h>
#include <iostream.h>
#include<conio.h>
#include<ctype.h>
#include <string.h>
#include <fstream.h>
#include <stdio.h>
#include <iostream.h>
#include <conio.h>
#include <ctype.h>
int main(){
        char line[100];
 
        int k,l;
 
        int count=0;
 
        clrscr();
        ofstream chapter_one ("new4.txt");
        ofstream chapter_two ("new5.txt");
        ofstream chapter_three ("new6.txt");
        ifstream book("book1.txt");
                while (!book.eof())
                {
                        book.getline(line,100);
                        k=strlen(line);
                        //chapter_one<<line << endl;
                        for(int i=0; i<k; i++)
                        {                       //cout<<line[i];
                        //printf("%d\n",line[i]);
                        //l=toascii(line[i]);
                        //cout<<l<<endl;
                                if(toascii(line[i])!=42)
                                {
                                        chapter_one<<line[i];
                                        count=count+1;
                                }
                                else
                                        chapter_one<<endl;
                                         //code for file seperation
        }               }               cout<<count;
                        /*for(int i=0;
i<=256;
i++)                    {                       printf("%d %c",i,i);
                        }                               //book<<"*"<<endl;
               /*       while (! book.eof())            {
book.getline(line,100);
                        chapter_two<< line << endl;
                }               //book<<"*"<<endl;
                while (! book.eof() )           {                       book.get
line(line,100);
                        chapter_three << line << endl;
                }    */         //book<<"*"<<endl;
        chapter_one.close();
        chapter_two.close();
        chapter_three.close();
        book.close();
        getch();
  return 0;
}