#include <iostream>
#include <vector>
#include <string>

using namespace std;

typedef vector<int> myNumType;
using aNumType = vector<int>;

string Reverse(string word);

int main() {
    int numbers;

    vector<int> data;
    vector<string> words = {"hello", "world", "how ", "are", "you"};
   // vector< vector<int>> map;
   // vector<int> secondVector(3);
    int i;

    cout << "In my word array  there are " << words.size() << " words." << endl;
    for(i =0; i < static_cast<int>(words.size()) ; ++i) {
       cout << "The " << i << "th word is " << words.at(i) << endl;
       words.at(i) = Reverse(words.at(i));

    }

    cout << endl << endl;

    for( auto word: words) {
        cout << word << ", " ;
    }
    cout << endl;

    cout << endl << endl;
    for( auto & word: words) {
        word = Reverse(word);
    }

    bool first {true};
    for( auto word: words) {
        if (first) {
            first = false;
        } else {
            cout << ", ";
        }
        cout << word;
    }
    cout << endl;

    cout << "How many numbers in your vector ";
    cin >> numbers;

    cout << "data is now: "  << endl ;
    for(auto n : data) {
       cout << n << " " ;
    }
    cout << endl;

    for( i = 0; i < numbers; i++) {
        data.push_back(i);
    }

    cout << "data is now: "  << endl ;
    for(auto n : data) {
       cout << n << " " ;
    }
    cout << endl;

    cout << "The first element is " << data[0] << " or " << data.front() 
         << endl;
    cout << "The last element is " << data[data.size() -1] 
         << " or " << data.back() << endl;
    
    return 0;

}

string Reverse(string word){
    string value;
    size_t i;

    for(i =0; i < word.size(); i++) {
       value = word[i] + value;
    }

    return value;
}