int insameline(char *str, int *hash)
{
    for (int i = 1; str[i] != '\0'; i++)
    {
        if (hash[tolower(str[i - 1]) - 'a'] != hash[tolower(str[i]) - 'a'])
            return 0;
    }
    /*just one character also return 1*/
    return 1;
}
char** findWords(char** words, int wordsSize, int* returnSize)
{
    int cnt = 0;
    /*0 represent line 2,-1 for line 3,1 for line 1*/
    int hash[26] = { 0,-1,-1,0,1,0,0,0,1,0,0,0,-1,-1,1,1,1,1,0,1,1,-1,1,-1,1,-1 };
    /*malloc wordsSize pointer*/
    char **res = (char **)malloc(sizeof(char *) * wordsSize);
    for(int i = 0;i < wordsSize;i++)
    {
        if(insameline(words[i],&hash) == 1)
        {
            res[cnt++] = words[i];
        }
    }
    
    *returnSize = cnt;
    return res;
}