new

u7/hash_table.py

@@ -67,4 +67,28 @@ class HashTable:
                 key, value = slot
                 index = self.probe(key)
                 self.slots[index] = (key, value)
-                self.size += 1
+                self.size += 1
+    def __getitem__(self, key):
+        self._check_key(key)
+        idx = self.probe(key)
+        slot = self.slots[idx]
+
+        if slot is not self.empty and slot is not self.deleted and slot[0] == key:
+            return slot[1]
+        raise KeyError(key)
+
+    def __setitem__(self, key, value):
+        self._check_key(key)
+        idx = self.probe(key)
+        slot = self.slots[idx]
+
+        if slot is not self.empty and slot is not self.deleted and slot[0] == key:
+            self.slots[idx] = (key, value)
+            return
+
+        if (self._size + 1) / self.__capacity > 0.7:
+            self._resize()
+            idx = self.probe(key)
+
+        self.slots[idx] = (key, value)
+        self._size += 1