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C++ program to find out if a file is sorted or not? Using header file

C++ program to find out if a file is sorted or not? Using header file

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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C++ program to find out if a file is sorted or not? Using header file 

Expert Solution
Step 1

Program Plan:

  1. Initialize all the required header files.
  2. Enter the name of the file to be checked for sorting. 
  3. Open the file and process it by using inbuilt function is_sorted() under the header file algorithm. 
  4. if the file will be sorted it will print the file is sorted else not. 
  5. Display the message accordingly.
Step 2

The following is the required C++ program:-

#include<bits/stdc++.h>
using namespace std;

int main()
{
    ifstream file;
    char filename[100];
    cout<<"Enter the name of the file:";
    cin>>filename;
    file.open(filename);
    if(!file)
    {
        cout<<"The file doesn't exist"<<endl;
    }
    if (is_sorted(filename, filename+100))
    {
        cout << "The file is sorted" <<endl;
    }
    else
    {
        cout << "The file is not sorted : " <<endl;
    }

    return 0;
}

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