#include <iostream>
#include <cctype>
#include <fstream>

// this is the original code.
//
using namespace std;

const size_t MAX_WORDS{100};


string StripWord(string word);
void InsertWord(string word, string words[], size_t & size);
void PrintArray(const string words[], size_t size);
void ReadArray(string words[], size_t & size);
size_t FindWord(string word, const string words[], size_t size);

int main() {
    string words[MAX_WORDS];
    size_t wordCount{0};

    ReadArray(words, wordCount);


    return 0;
}

void ReadArray(string words[], size_t & size) {
    ifstream inFile("ocap.txt");
    string word;

    inFile >> word;
    while(inFile) {
       word = StripWord(word);
       if (word!= "") {
           InsertWord(word, words, size);
       }

       inFile >> word;
    }

    inFile.close();
}

void PrintArray(const string words[], size_t size){
   for(size_t i = 0; i < size; ++i) {
      cout << words[i] << endl;
   }
}

string StripWord(string word){
    string newWord;

    for(size_t i = 0; i < word.size(); ++i) {
       if (isalpha(word[i])) {
           newWord += static_cast<char>(tolower(word[i]));
       }
    }
    return newWord;
}

size_t FindWord(string word, const string words[], size_t size) {
  
   size_t i = 0;
   while (i < size and  words[i] != word) {
      ++i;
   }

   return i;
}

void InsertWord(string word, string words[], size_t & size){
    size_t pos;
    pos = FindWord(word, words, size);
    if (pos >= size) {
       if (size < MAX_WORDS) {
          words[size] = word;
          ++size;
       } else {
          cout << "The array is too small, can not add " << word  << endl;
       }
    }
}