Quick preliminary changes for data structures snippets

Author: Allen Wang

snippets/data_structures.py

@@ -0,0 +1,40 @@
+# Data structure snippets
+def list_ex():
+    # Ways to initialize a list
+    my_empty_list = []
+    my_non_empty_list = [1, 4, 9, 16, 25]
+
+    print(my_empty_list)
+    print(my_non_empty_list)
+
+    # You can index and slice a list
+    print(my_non_empty_list[0])   # Returns the first element
+    print(my_non_empty_list[-1])  # Returns the last element 
+    print(my_non_empty_list[-3:]) # Slicing returns a new list
+
+    # Lists also support concatenation
+    print(my_non_empty_list + [5, 6, 11, 13])
+
+
+def dict_ex():
+    # Ways to initialize a dictionary
+    my_dict = {}
+
+def tuple_ex():
+    # Ways to initialize a tuple
+    my_tuple = ()
+
+def set_ex():
+    # Ways to initialize a set
+    my_set = {1,2}
+
+def counter_ex():
+    # Ways to initialize a counter
+    my_counter = Counter()
+
+
+
+list_ex()
+dict_ex()
+tuple_ex()
+set_ex()