Question

(PLEASE USE C++)

(PLEASE USE THE EXAMPLE GIVEN)

Question 1: [10 pointes] the input file inFile.txt stores a number of words with possible replication. Each word is stored on a separate line. The number of words within inFile.txt is stored as the first line in that file.

Write and test a program that reads the words from inFile.txt and prints them in outFile.txt  without replication as well as the number of replication for each word.

Hint: to implement the above program, one must use a table of pointers to C-Strings as well as an array of counters; each counter keeps track of the count of a given word among all words within the input file.

Input File (inFile.txt)

5

smith

sara

john

john

smith

Output File (outFile.txt)

smith     2

john      2

sara      1

Question 2 [10 pointes] repeat Question 1 using an array of object strings as well as an array of counters and file IO.

Answer 1

C++ CODE:

#include <bits/stdc++.h>     
#include <string>
#include <fstream>      //for dat file handling
using namespace std;

int main()
{
   fstream file1("input.txt");              // reading input from file
   string str;
   int str_len = 0;
   bool check_string_found = 0;
   string *arr;
   int *counters;

   int size;

   file1 >> size;

   arr = new string[size];
   counters = new int[size];

   while (file1 >> str)
   {
       if(str.length()!=0)
       {
            check_string_found = 0;             // bool type variable to store whether the string is equal or not

            for (int i = 0;i < str_len;i++)
            {
                if (str == arr[i])              //checking both strings are same or not
                {
                    check_string_found = 1;
                    counters[i]++;
                }
            }
            if (!check_string_found)              //  checking string is found or not
            {
                counters[str_len] = 1;
                arr[str_len++] = str;
            }
       }
   }

   fstream file12("output.txt");            // writing output into file

   for (int i = 0;i < str_len;i++)          //printing frequency of each string
   {
       file12 << arr[i] << ": " << counters[i] << endl;
   }
   file1.close();                           //closing file
   file12.close();                          //closing file
   delete[] arr;                            //dealloacting memory
   delete[] counters;                       //dealloacting memory
   return 0;
}

Input:

Output:

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