Question

I need C++ program that Read an input file of text.txt one word at a time. The file should consist of about 500 words. The program should remove all punctuations,keep only words. Store the words in a built-in STL container, such as vector or map.Can someone help with any additional comments that I can understand the logic?thank you

Answer 1

• We will use vectors in this program, although many other STL containers will produce the same desired result.
• This vector will hold string.
• read the file word by word:
  • if last character of the word is '.' ',' '!' or '?' then remove the last character using pop_back()
  • push the word to the vector using push_back()
• print the vector to console

program:

#include <iostream>
#include <fstream>
#include <vector>

using namespace std;

int main(){
   vector<string> v;
   ifstream fin("test.txt");
   string word;
   while(fin>>word){
       if(word.back()=='.'||word.back()==','||word.back()=='!'
           || word.back()=='?')
           word.pop_back();
       v.push_back(word);
   }
   for(string s: v)
       cout<<s<<" ";
   cout<<"\n";
}

sample test.txt file:

console output: