PSET5 Speller Huge Number of Misspelled Words - python-3.x

Question

I have been running the solution but is getting a high number of misspelled words.
WORDS MISSPELLED: 15904 as compared to staff's WORDS MISSPELLED: 955
Other than that, the word count is accurate and the runtime is alright.
I suspect the problem might come from the check / load function but I am not sure what caused it.
Some other code implemented a "to lowercase" in the check function, but I thought the (strcasecmp) would have done the job of comparing between strings, disregarding the case.
Check Function
bool check(const char *word)
{
int hashInt = hash(word);
if (table[hashInt] == NULL)
{
return 1;
}
node *cursor = table[hashInt];
while (cursor != NULL)
{
int i = strcasecmp(cursor -> word, word);
if (i == 0)
{
return 0;
break;
}
cursor = cursor -> next;
}
return false;
}
Load Function
bool load(const char *dictionary)
{
FILE *file = fopen(dictionary, "r");
if (file == NULL)
{
printf("error opening file");
return 1;
}
char word [LENGTH + 1];
while (fscanf(file, "%s\n", word) != EOF)
{
int hashInt = hash(word);
node *n = malloc(sizeof(node));
if (n == NULL)
{
unload();
return 1;
}
if (table[hashInt] == NULL)
{
table[hashInt] = n;
}
else
{
n -> next = table[hashInt];
table[hashInt] = n;
}
strcpy(n -> word, word);
wordLoaded++;
}
fclose(file);
return true;
}
Hash Function
unsigned int hash(const char *word)
{
unsigned int hash = 0;
for (int i = 0, n = strlen(word); i < n; i++)
hash = (hash << 2) ^ word[i];
return hash % N;
return 0;
}

Answer 1

From the spec:
dictionary is assumed to be a file containing a list of lowercase
words
and
Your implementation of check must be case-insensitive.
This int i = strcasecmp(cursor -> word, word); looks like it would fulfill the requirement as long as this int hashInt = hash(word); was also case insensitive. Alas, it is not; hash("A") and hash("a") will return different values.