Create design_hash_map.py

Author: erjan

design_hash_map.py

@@ -0,0 +1,41 @@
+'''
+Design a HashMap without using any built-in hash table libraries.
+
+Implement the MyHashMap class:
+
+MyHashMap() initializes the object with an empty map.
+void put(int key, int value) inserts a (key, value) pair into the HashMap. If the key already exists in the map, update the corresponding value.
+int get(int key) returns the value to which the specified key is mapped, or -1 if this map contains no mapping for the key.
+void remove(key) removes the key and its corresponding value if the map contains the mapping for the key.
+'''
+
+
+class MyHashMap:
+
+    def __init__(self):
+        self.m = dict()
+
+    def put(self, key: int, value: int) -> None:
+        if key in self.m.keys():
+            self.m[key] = value
+        else:
+            self.m[key] = value
+
+    def get(self, key: int) -> int:
+        if key in self.m.keys():
+            
+            return self.m[key]
+        else:
+            return -1
+        
+
+    def remove(self, key: int) -> None:
+        if key in self.m.keys():            
+            self.m.pop(key)
+        
+       
+# Your MyHashMap object will be instantiated and called as such:
+# obj = MyHashMap()
+# obj.put(key,value)
+# param_2 = obj.get(key)
+# obj.remove(key)