Question

Create a program that stores words in an STL vector and then searches the vector for words.

Requirements

You will keep track of strings as C++ string objects.

In main, declare a vector variable to contain your strings.

Create a loop that gets one word at a time from the user until they enter "." as the only thing on the input line. For this assignment, it is adequate to limit strings to one word at a time. Put the word into the vector.

Once the user is done entering words, set up a separate loop to search for words in the vector. Similar to the previous loop, get the searchable words one at a time until they enter ".". When you find the word, use printf() (or cout) to display "Success!". If you don't find the word, use printf() (or cout) to display "Not there!".

Answer 1

program logic:

• create a vector<string> named words.
• prompt user for a string
• loop until user enters ".":
  • 1.) add the string to words
  • 2.) prompt user for a string
• now, we have to prompt user for search strings.
• prompt user for a string
• loop until user enters "."
  • 1.) check if the string exists in words using std::find() function. If yes, print "success". otherwise, print "Not there"
  • 2.) prompt the user for a string

program:

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

int main(){
   vector<string> words;
   cout<<"Enter the words(enter . to stop): \n";
   string w;
   cin>>w;
   while(w!="."){
       words.push_back(w);
       cin>>w;
   }
   cout<<"Enter search words(enter . to stop): \n";
   string target;
   cin>>target;
   while(target!="."){
       if (find(words.begin(), words.end(),target)!=words.end())
           cout<<"Success\n";
       else
           cout<<"Not there\n";
       cin>>target;
   }
}

Sample inputs and outputs:

Enter the words (enter . to stop): hello sworld a Tsample execution Enter search words(enter . to stop): world Success nope Not there sample Success how Not there hello Success