Added cmc prefixes to enums used by heap and hashtables and fixed return type on treeset and hashset

examples/heap/heapsort.c

@@ -19,7 +19,7 @@ HEAP_GENERATE(h, heap, static, int)
 
 int main(int argc, char const *argv[])
 {
-    heap *h = h_new(32, MaxHeap, intcmp);
+    heap *h = h_new(32, cmc_max_heap, intcmp);
 
     for (int i = 1; i < 101; i++)
     {

examples/heap/iterator.c

@@ -24,7 +24,7 @@ HEAP_GENERATE(h, heap, /* FMOD */, int)
 int main(int argc, char const *argv[])
 {
     // Create a new max heap with an initial capacity of 100
-    heap *my_heap = h_new(100, MaxHeap, intcmp);
+    heap *my_heap = h_new(100, cmc_max_heap, intcmp);
 
     // Add elements to the heap
     for (int i = 0; i < 20; i++)

examples/others/word_counter/counter.c

@@ -218,7 +218,7 @@ int main(int argc, char const *argv[])
     }
 
     /* Sorting using a Heap */
-    Heap *sort = hp_new(hm_count(result), MaxHeap, cmp_wcpair);
+    Heap *sort = hp_new(hm_count(result), cmc_max_heap, cmp_wcpair);
 
     /* Add key-value pairs to Heap for sorting */
     for (HashMap_iter iter = result->it_start(result);