Word Counter : Write a function that accepts apointer to a C-String as an argume

Question

Word Counter: Write a function that accepts apointer to a C-String as an
argument and returns the number of words contained in the string.For instance,
if the string argument is "Four score and seven years ago" thefunction should
return the number 6. Demonstrate the function in a program thatasks the user to
input a string and then passes it to the function. The number ofwords in the
string should be displayed on the screen.

Use this skeleton for 'main':

int main()
{
char cstring[81];

cout << " Enter a string, 80 or fewer characters: ";
cin.getline(cstring, 81);
cout << " The number of words in that string: ";
cout << wordCount(cstring) << endl << endl;
return 0;
}

Note: The main problem in this exercise istraveling within a string,
character by character, while determining whether we are inside ofa word or in
between words (space). Here is a bit of pseudocode, which shouldhelp get started:

index = 0
while string[index] != NULL

if char = space
while char = space
keep looping
if char = nonspace
word++ //we must be in a word
while char = nonspace
keep looping

index++

endwhile

Notes:

• 
  
• The pseudocode above is not a required skeleton; it is onlymeant to
  exemplify the concept.
  
• Also don't forget that a pointer to the string will be used,inside the
  wordCount function.
  
• Be sure to use the function 'isalnum' and 'isspace' forcomparing
  characters.
  
• Anticipate possible multiple spaces in front of the sentence,in between
  words, etc.
  
• When looping inside of a word, be prepared to run into anapostrophy or
  other punctuation (ex: don't), therefore, requiring an additionalcondition for
  the while loop such as:
  

while( isalnum(word[index]) || ( ispunct(word[index])) )

From the book:

Average Number of Letters: Modify the program youwrote for problem 3
(Word Counter), so it also displays the average number of lettersin each word.

Word Counter: Write a function that accepts apointer to a C-String as an
argument and returns the number of words contained in the string.For instance,
if the string argument is "Four score and seven years ago" thefunction should
return the number 6. Demonstrate the function in a program thatasks the user to
input a string and then passes it to the function. The number ofwords in the
string should be displayed on the screen.

int main()
{
char cstring[81];

cout << " Enter a string, 80 or fewer characters: ";
cin.getline(cstring, 81);
cout << " The number of words in that string: ";
cout << wordCount(cstring) << endl << endl;
return 0;
}

index = 0
while string[index] != NULL

if char = space
while char = space
keep looping
if char = nonspace
word++ //we must be in a word
while char = nonspace
keep looping

index++

endwhile

Notes:

• 
  
• The pseudocode above is not a required skeleton; it is onlymeant to
  exemplify the concept.
  
• Also don't forget that a pointer to the string will be used,inside the
  wordCount function.
  
• Be sure to use the function 'isalnum' and 'isspace' forcomparing
  characters.
  
• Anticipate possible multiple spaces in front of the sentence,in between
  words, etc.
  
• When looping inside of a word, be prepared to run into anapostrophy or
  other punctuation (ex: don't), therefore, requiring an additionalcondition for
  the while loop such as:
  

while( isalnum(word[index]) || ( ispunct(word[index])) )



Average Number of Letters: Modify the program youwrote for problem 3
(Word Counter), so it also displays the average number of lettersin each word.

Explanation / Answer

#include<cstring>

int Word_count(char *);

//Main function

void main()

{//Start main

     const int size=50;

     char String1[size];//Holds string

     int words;

     //Inputting String

     cout<<"Enter String ";

     cin.getline(String1,size);

     //Function call   

     words=Word_count(String1);

      //Outputting Number of returnedword count

     cout<<"Number ofwords:"<<words<<endl;

     //Statement to Pause System

     system("pause");

}//End of main

//Function Definition

int Word_count(char *str)

{

     //Variable declaration

     int count=1;//Holds wordcount

     //Loop to count words

     while(*str!='')

     {

          if(*str==' ')

              count++;

              str++;

     }

    

     //Returning count value tomain

     return count;

}

//End of function

//Header file section

#include<iostream>

#include<cctype>

#include<cstring>

using namespace std;

//Function prototype

int Word_count(char *);

//Main function

void main()

{//Start main

     const int size=30;

     char String1[size];//Holds string

     int Average_words;

     //Inputting String

     cout<<"Enter String up to(20)characters";

     cin.getline(String1,size);

     //Function call   

     Average_words=Word_count(String1);

      //Outputting Number of returnedword count

     cout<<"Number of Letters in Eachword:"

                                    <<Average_words<<endl;

     //Statement to Pause System

     system("pause");

}//End of main

//Function Definition

int Word_count(char *str)

{

     //Variable declaration

     int count=1,average=0;//Holdsword count

     //Loop to count words

     while(*str!='')

     {

          if(*str==' ')

              count++;

              str++;

     }

     average=20/count;

     //Returning count value tomain

     return average;

}

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