GH-133: add python sets

README.md

@@ -74,6 +74,7 @@ A data structure is a data organization, management, and storage format that is
 <td>Set</td>
 <td>
 <a href="/concepts/cpp/set.md"><code>cpp🐀</code></a>
+<a href="/concepts/python/sets.md"><code>py🐍</code></a>
 <a href="/concepts/typescript/set.md"><code>ts</code></a>
 </td>
 </tr>

concepts/python/sets.md

@@ -0,0 +1,53 @@
+# Sets
+
+From wikipedia
+
+> In computer science, a set is an abstract data type that can store unique values, without any particular order. It is
+> a computer implementation of the mathematical concept of a finite set. Unlike most other collection types, rather than
+> retrieving a specific element from a set, one typically tests a value for membership in a set.
+
+## 🎨 Design
+
+**Sets Operations**
+
+|              | Definition                                  |
+|--------------|---------------------------------------------|
+| Adding       | Add element with specified value to the set |
+| Union        | Merge items in two sets                     |
+| Intersection | Return common elements in two sets          |
+| Difference   | Find difference in between sets             |
+| Clearance    | Clear all items from the set                |
+
+## Time Complexity Analysis of Sets
+
+| Operation       | Adding | Union    | Intersection | Difference | Clearance |
+|-----------------|--------|----------|--------------|------------|-----------|
+| Time Complexity | $O(1)$ | $O(n+m)$ | $O(min(n,m)$ | $O(n)$     | $O(n)$    |
+
+## 💻 Implementation in Python
+
+```python
+# Init sets
+set_1 = {"a", "b", "c"}
+set_2 = {"d", "e", "f"}
+print(set_1)                        # {'c', 'b', 'a'}
+# Add item to set
+set_1.add("d")
+set_1.add(1)
+print(set_1)                        # {1, 'c', 'a', 'd', 'b'}
+# Union sets
+print(set_1.union(set_2))           # {'e', 1, 'b', 'c', 'd', 'f', 'a'}
+# Find sets intersection
+print(set_1.intersection(set_2))    # {'d'}
+# Find sets difference
+print(set_1.difference(set_2))      # {'b', 1, 'a', 'c'}
+# Clear set
+set_1.clear()
+print(set_1)                        # set()
+```
+
+## 🔗 Further Reading
+
+* [Sets in Python](https://www.geeksforgeeks.org/sets-in-python/), geeksforgeeks.org, 2022
+* [Python Sets](https://docs.python.org/3/tutorial/datastructures.html#sets), geeksforgeeks.org, 2022
+* ▶️ [Python Tutorial: Sets - Set Methods and Operations to Solve Common Problems](https://www.youtube.com/watch?v=r3R3h5ly_8g), Corey Schafer, 2018