Answer Happy

Question: Review the generic hash tableimplementation in Algorithm 5.
Explain why attribute _n is updated in __delitem__(self, k) butnot updated in __setitem__(self, k, v).
Algorithm 5 Hash table class HashMapBase (MapBase): definit__(self, cap=11, p=109345121): self._table = cap [None] self. n = 0 self. prime = p self._scale = 1 + randrange (p-1) self. shift = randrange (p) def hash_function(self, k): return (hash (k) *self._scale + self._shift) \ % self._prime % len (self._table) deflen(self): return self._n def getitem_(self, k): j= self._hash_function (k) return self._bucket_getitem (j, k) def setitem(self, k, v): j = self._hash_function (k) self._bucket_setitem (j, k, v) if self._n > len(self._table) // 2: self._resize (2 def delitem_(self, k): j = self._hash_function (k) self._bucket_delitem (j, k) self. n = 1 def resize (self, c): old len(self._table) - 1) list (self.items ()) self._table = c* [None] self._n = 0 for (k, v) in old: self [k] = V