int main (int argc, const char * argv[]) {
    const char* filename;
    struct hashMap *hashTable;
    int tableSize = 10;
    clock_t timer;
    FILE *fileptr;
    /*
     this part is using command line arguments, you can use them if you wish
     but it is not required. DO NOT remove this code though, we will use it for
     testing your program.

     if you wish not to use command line arguments manually type in your
     filename and path in the else case.
     */
    if(argc == 2)
        filename = argv[1];
    else
        filename = "input2.txt"; /*specify your input text file here*/

    printf("opening file: %s\n", filename);

    timer = clock();

    hashTable = createMap(tableSize);

    /*... concordance code goes here ...*/