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Vinil7 [7]
3 years ago
10

Write a program that reads a book (a file in text format), breaks each line into words, strips whitespace and punctuation from t

he words, and converts them to lowercase. Count the total number of the words, the number of times each word is used, and print out the top 10 most frequently used words.

Computers and Technology
1 answer:
diamong [38]3 years ago
4 0

Answer:

Following are the code to this question:

file= open('book.txt') #open file

li= {} #define an empty list

for lines in file: # use for loop Split file data into words

   d= lines.lower().strip(' !?').split() #define variable d that Add it to map

   for val in d: #define loop to store data  

       if val not in li: #check value is not in list

           li[val] = 0 #define list and assign value in 0

       li[val] = li[val] + 1 #Sort the book data and add its value  

m = sorted(li.items(),key = lambda x : -x[1]) #sorted value into the m variable  

print(m[:10]) #print value

Output:

please find the attachment.

Explanation:

In the given python code first, we open the file "book.txt", in next line, an empty list is defined, that uses the for loop which can be described as follows:

  • In the for loop is used, that reads the file data, and defines a variable "d", that stores the values into the map.
  • In the next line another loop is used, that check file values, if values are the same type so, it adds values and writes it.  
  • In the last line, m variable is used, that sorts the values and use the slicing to print its value.

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Write a program that will open the file random.txt and calculate and display the following: A. The number of numbers in the file
Rama09 [41]

Answer:

Here is the C++ program:

#include <iostream>  //to use input output functions

#include <fstream>  //to manipulate files

using namespace std;  //to identify objects like cin cout

int main(){  //start of main function

  ifstream file;   //creates an object of ifstream

   file.open("random.txt"); //open method to open random.txt file using object file of ifstream

       

    int numCount = 0;  //to store the number of all numbers in the file          

    double sum = 0;   //to store the sum of all numbers in the file

    double average = 0.0;   //to store the average of all numbers in the file

    int number ; //stores numbers in a file

                 

        if(!file){   //if file could not be opened

           cout<<"Error opening file!\n";    }   //displays this error message

       

       while(file>>number){   //reads each number from the file till the end of the file and stores into number variable

           numCount++; //adds 1 to the count of numCount each time a number is read from the file          

           sum += number;  }  //adds all the numbers and stores the result in sum variable

           average = sum/numCount;  //divides the computed sum of all numbers by the number of numbers in the file

     

       cout<<"The number of numbers in the file: "<<numCount<<endl;  //displays the number of numbers

       cout<<"The sum of all the numbers in the file: "<<sum<<endl;  //displays the sum of all numbers

       cout<<"The average of all the numbers in the file: "<< average<<endl;  //displays the average of all numbers

       file.close();     }  //closes the file    

   

Explanation:

Since the random.txt is not given to check the working of the above program, random.txt is created and some numbers are added to it:

35

48

21

56

74

93

88

109

150

16

while(file>>number) statement reads each number and stores it into number variable.

At first iteration:

35 is read and stored to number

numCount++;  becomes

numCount = numCount + 1

numCount = 1      

sum += number; this becomes:

sum = sum + number

sum = 0 + 35

sum = 35

At second iteration:

48 is read and stored to number

numCount++;  becomes

numCount = 1+ 1

numCount = 2    

sum += number; this becomes:

sum = sum + number

sum = 35 + 48

sum = 83

So at each iteration a number is read from file, the numCount increments to 1 at each iteration and the number is added to the sum.

At last iteration:

16 is read and stored to number

numCount++;  becomes

numCount = 9 + 1

numCount = 10    

sum += number; this becomes:

sum = sum + number

sum = 674 + 16

sum = 690

Now the loop breaks and the program moves to the statement:

       average = sum/numCount;  this becomes:

       average = 690/10;

       average = 69

So the entire output of the program is:

The number of numbers in the file: 10                                                                                                           The sum of all the numbers in the file: 690                                                                                                     The average of all the numbers in the file: 69

The screenshot of the program and its output is attached.

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