char* getWord(FILE *file); /* prototype */

/****************************************/

int isLegalWord(char * word);

int main(int argc, const char * argv[]) {
hashMap * ht;
char * word;
int * value;
FILE * file;
int i;
hashLink * link;
/*Write this function*/
if (argc != 2) {
   return 0;
}
/* set up map */
ht = (hashMap *) malloc(sizeof (hashMap));
initMap(ht, 20);

/* open file */
file = fopen(argv[1], "r");
if (file == NULL) {
   /* cannot open file for reading*/
   return 0;
}

/* get the first word from file */
word = getWord(file);

/* continue until we get to the end of file */
while (word != NULL) {
   /* work on legal word */
   if (isLegalWord(word) != 0) {

         /* fund the word in the table */
         value = atMap(ht, word);
         /* nothing is found */
         if (value == NULL) {
            insertMap(ht, word, 1);
         } else {
            /* update the counter if the word is found*/
            *value = (*value) + 1;
         }
   }
   free(word);
   word = getWord(file);
}
/* close file */
fclose(file);

/* print result to screen*/

for (i = 0; i < ht->tableSize; i++) {
   link = ht->table[i];
   while (link != NULL) {
         printf("%s: %d\n", link->key, link->value);
         link = link->next;
   }
}

freeMap(ht);
return 0;
}

In a right triangle, the square of the length of one side is equal...