Question

Write a c++ code to read 4 documents and with the use of  Boolean operators, search which of the document contains

1) NOT (cars OR trucks) and 2) (NOT cars) AND (NOT trucks)

The documents are as following -

Document 1(file1.txt): search for the word “cars”.

some people think cars they own is extension of their personality somehow the idea that cars define people is very materialistic for some for some people cars are just a way of transportation from point a to b I like cars some people like to collect old cars as a hobby I guess one needs to be rich to have such a hobby for some people cars are bad because gasoline pollutes environment do you like cars

Document 2(file2.txt):search for the word “trucks”.

some people think trucks they own is extension of their personality somehow the idea that trucks define people is very materialistic for some for some people trucks are just a way of transportation from point a to b I like trucks some people like to collect old trucks as a hobby I guess one needs to be rich to have such a hobby for some people trucks are bad because gasoline pollutes environment do you like trucks

Document 3(file3.txt): search for the word “cars” and trucks.

some people think cars they own is extension of their personality somehow the idea that cars define people is very materialistic for some for some people cars are just a way of transportation from point a to b I like cars some people like to collect old cars as a hobby I guess one needs to be rich to have such a hobby for some people cars are bad because gasoline pollutes environment do you like cars some people think trucks they own is extension of their personality somehow the idea that trucks define people is very materialistic for some for some people trucks are just a way of transportation from point a to b I like trucks some people like to collect old trucks as a hobby I guess one needs to be rich to have such a hobby for some people trucks are bad because gasoline pollutes environment do you like trucks

Document 4(file4.txt): Contains neither “cars” nor “trucks”.

after every calamity there is ease we ask for ourselves mercy but others we ask for justice what you seek is seeking you yesterday I was clever so I wanted to change the world today I am wise so I am changing myself raise your words not voice it is rain that grows flowers not thunder find yourself for everything else there is google

Thank you

Answer 1

I am writing 4 separate codes for 4 documents and the corresponding outputs.

Code

#include<bits/stdc++.h>
using namespace std;

int main(){
  
   ifstream iff("file1.txt");
  
   //searching for the word "cars"
   string line;
   bool car = 0;
   while(getline(iff, line)){
      
       istringstream iss(line);
       string word;
       while(iss >> word){
           if(word == "cars"){
               car = 1;
           }
       }
   }
   if(car == 1)
       cout << "'cars' is present in the document";

else
       cout << "'cars' is not present in the document";
}

Output

Code

#include<bits/stdc++.h>
using namespace std;

int main(){
  
   ifstream iff("file2.txt");
  
   //searching for the word "trucks"
   string line;
   bool truck = 0;
   while(getline(iff, line)){
      
       istringstream iss(line);
       string word;
       while(iss >> word){
           if(word == "trucks"){
               truck = 1;
           }
       }
   }
   if(truck == 1)
       cout << "'trucks' is present in the document";

  else
       cout << "'cars' is not present in the document";
}
Output

Code

#include<bits/stdc++.h>
using namespace std;

int main(){
  
   ifstream iff("file3.txt");
  
   //searching for the word "cars" and "trucks"
   string line;
   bool truck = 0,car = 0;
   while(getline(iff, line)){
      
       istringstream iss(line);
       string word;
       while(iss >> word){
           if(word == "trucks"){
               truck = 1;
           }
           if(word == "cars"){
               car = 1;
           }
       }
   }
   if(truck == 1 && car == 1)
       cout << "'trucks' and 'cars' is present in the document";
   else
       cout << "'trucks' and 'cars' is not present in the document";
}

Output

Code

#include<bits/stdc++.h>
using namespace std;

int main(){
  
   ifstream iff("file4.txt");
  
   //searching for the word "cars" and "trucks"
   string line;
   bool truck = 0,car = 0;
   while(getline(iff, line)){
      
       istringstream iss(line);
       string word;
       while(iss >> word){
           if(word == "trucks"){
               truck = 1;
           }
           if(word == "cars"){
               car = 1;
           }
       }
   }
   if(truck == 0 && car == 0)
       cout << " neither 'trucks' nor 'cars' is present in the document";
   else
       cout << "Some of them are present";
}

Output