There is a program written that reads from standard input and keeps track of wor

Question

There is a program written that reads from standard input and keeps track of words that are read. Here a "word" is any contiguous sequence of alphanumeric characters. The program displays a list of words found along with their frequency of occurrence. The words are output in alphabetical order with 3 words per line. The program also tells the user how many words ( both total and distinct) were read. Sample output from words.5 would be like that below:
Word Count | Word Count | Word Count |
| | |
All 1 | As 1 | Dick 1 |
Dick, 1 | Did 1 | Jane 1 |
Jane, 1 | Spot 1 | Spot's 1 |
Spot? 1 | a 5 | account 1 |
after. 1 | ago, 1 | altered 1 |
and 1 | away 1 | brokerage 1 |
but 1 | computer 1 | end. 1 |
engineer 1 | ever 2 | executive 1 |
expect, 1 | few 1 | firm. 1 |
for 2 | happened 1 | happily 1 |
happy 1 | he 1 | his 1 |
is 2 | large 1 | lived 1 |
major 1 | might 1 | never 1 |
of 1 | passed 1 | personality. 1 |
pleasant 1 | senior 1 | success 1 |
the 1 | they 1 | to 2 |
top 1 | vendor. 1 | was 1 |
what 1 | wonder 1 | years 1 |
you 2 |


Total Word Count : 64
Distinct Word Count : 55


I have word.5 file

Explanation / Answer

please rate -thanks

you say standard input, which is the keyboard, then you say you have a file. so I used file input

#include <iostream>
#include <string>
#include <fstream>
#include <iomanip>
using namespace std;
void countit(string,int[],string[],int&);
int main()
{int count[20],i,n=0,oldpos=0,counter=0,tt;
string s,words[20],word,t;
string::size_type pos;
ifstream in;
   in.open("words.5");           //open file
   if(in.fail())             //is it ok?
       { cout<<"input file did not open please check it ";
        system("pause");
        return 1;
        }
for(i=0;i<20;i++)
     count[i]=0;
getline(in,s);
while(in)
    {oldpos=0;
     pos=s.find(' ',oldpos);
     while (pos!=s.npos)
        {word=s.substr(oldpos,pos-oldpos);
         countit(word,count,words,n);
         counter++;
         oldpos=pos+1;
         pos=s.find(' ',pos+1);
         }
      word=s.substr(oldpos,pos-oldpos);
      countit(word,count,words,n);
      counter++;  
     getline(in,s);   
         }
for(int i=0;i<n-1;i++)
       for(int j=i+1;j<n;j++)
          if(words[i].compare(words[j])>0)
             {t=words[i];
             tt=count[i];
             words[i]=words[j];
             count[i]=count[j];
             words[j]=t;
             count[j]=tt;
             }
for(i=0;i<n;i++)
              {cout <<setw(10)<<left<< words[i] << " " << count[i] << " |";
               if((i+1)%3==0)
                     cout<<endl;
              }
cout<<" Total word count: "<<counter<<endl;  
cout<<"Distinct word count: "<<n<<endl;
  
system("pause");
return 0;
}
void countit(string word,int count[],string words[],int &n)
{int i;
for(i=0;i<n;i++)
   if(word==words[i])
        {count[i]++;
         return;
         }
words[n]=word;
count[n]=1;
n++;
return;
}
   

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