#include <iostream>
#include <string>
int searchSong(std::string playList[], int arraySize, std::string songTitle)
{
    for (int i = 0; i < arraySize; i++)
    {
        std::cout << ". " << playList[i] << std::endl;
    }
    int start = 0;
    int stop = arraySize - 1;
    int pos1 = start + (stop - start + 1) / 3;
    int pos2 = start + 2 * (stop - start + 1) / 3;
    int songIndex = -1;
    while (start < stop && songIndex == -1)
    {
        if ((playList[start] <= songTitle) && (songTitle < playList[pos1]))
        {
            for (int i = start; i < stop; i++)
            {
                if (playList[i] == songTitle)
                {
                    songIndex = i;
                    return songIndex;
                }
            }
        }
        else if ((playList[pos1] <= songTitle) && (songTitle < playList[pos2]))
        {
            for (int i = start; i < stop; i++)
            {
                if (playList[i] == songTitle)
                {
                    songIndex = i;
                    return songIndex;
                }
            }
        }
        else if ((playList[pos2] <= songTitle) && (songTitle < playList[stop]))
        {
            for (int i = start; i < stop; i++)
            {
                if (playList[i] == songTitle)
                {
                    songIndex = i;
                    return songIndex;
                }
            }
        }
        return songIndex;
    }
}

int main()
{
    char ans;
    do {
        std::string playList[12] = { "addicted", "battery", "cold", "demons", "epic", "everlong", "fuel", "given", "halo", "immortals",             "jaded", "jars" };
        int arraySize = sizeof(playList) / sizeof(std::string);
        std::string songTitle;
        std::cout << "Enter a song title: \n";
        std::getline(std::cin, songTitle);
        std::cout << std::endl;
        std::cout << "Searching for: " << songTitle << std::endl << std::endl;
        int songIndex = searchSong(playList, arraySize, songTitle);
        std::cout << std::endl;
        std::cout << "The array index for " << songTitle << " is " << songIndex << std::endl << std::endl;
        std::cout << "Would you like to search again? \n";
        std::cin >> ans;
        std::cin.ignore();
    } while ((ans == 'y') || (ans == 'Y'));
    return 0;
}