Given the following vector: vector<string> vocab; Write code that will output an

Question

Given the following vector:


vector<string> vocab;




Write code that will output any word in the vector that begins with the letter X, upper- or lower-case. Any other word that does not begin with X should not be printed. You may want to add words to test with, but your code to take care of the requirements should work no matter how many strings are in vocab.
For any word that starts with X the output should look like:
xylum begins with x.
Xylophone begins with X.
Xenon begins with X.
x-ray begins with x.


Note how the output shows whether the particular word begins with upper or lower-case X.
HINT: We went over a method that accesses a particular char in a string variable.
Given the following vector:


vector<string> vocab;




Write code that will output any word in the vector that begins with the letter X, upper- or lower-case. Any other word that does not begin with X should not be printed. You may want to add words to test with, but your code to take care of the requirements should work no matter how many strings are in vocab.
For any word that starts with X the output should look like:
xylum begins with x.
Xylophone begins with X.
Xenon begins with X.
x-ray begins with x.


Note how the output shows whether the particular word begins with upper or lower-case X.
HINT: We went over a method that accesses a particular char in a string variable.
Given the following vector:


vector<string> vocab;




Write code that will output any word in the vector that begins with the letter X, upper- or lower-case. Any other word that does not begin with X should not be printed. You may want to add words to test with, but your code to take care of the requirements should work no matter how many strings are in vocab.
For any word that starts with X the output should look like:
xylum begins with x.
Xylophone begins with X.
Xenon begins with X.
x-ray begins with x.


Note how the output shows whether the particular word begins with upper or lower-case X.
HINT: We went over a method that accesses a particular char in a string variable.

Explanation / Answer

#include <iostream>
#include <vector>
#include <cstring>

using namespace std;

int main()
{
    vector<string> vocab; // declare vector
    string word;
    bool more = true;
   while (more)    //enter strings in it using push_back
    {
     
       cout << " Please enter string, 0 to quit: ";
       cin >> word;
       if (word== "quit")
          more = false;
       else
          vocab.push_back(word);
    }
  
    for (int i = 0; i < vocab.size(); i++)
       cout<<" "<<vocab[i]<<" begins with "<<vocab[i].at(0)<<"."; //use of at() function


    
  

    return 0;
}

Output:

Please enter string, 0 to quit: xylum

Please enter string, 0 to quit: Xylophone

Please enter string, 0 to quit: Xenon

Please enter string, 0 to quit: x-ray

Please enter string, 0 to quit: quit

xylum begins with x.

Xylophone begins with X.

Xenon begins with X.

x-ray begins with x.

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