Update readme.md

Day-11/readme.md

@@ -1 +1,66 @@
+# Day 11: Exploring Tuples and Sets in Python
 
+## **Task**: Practice using tuples and sets to store and manipulate data.  
+
+**Description**:  
+In this task, you will work with **tuples** and **sets**, two important data structures in Python. Tuples are immutable and are often used to store fixed data, while sets are unordered collections of unique items.  
+
+### **Key Steps**:  
+1. **Create and Access Tuples**:  
+   - Define a tuple containing elements of your choice.  
+   - Access elements using indexing and slicing.  
+
+2. **Manipulate Tuples**:  
+   - Convert a tuple to a list, modify it, and convert it back to a tuple.  
+
+3. **Work with Sets**:  
+   - Create a set of unique numbers or strings.  
+   - Add and remove elements from the set.  
+   - Perform set operations like union, intersection, and difference.  
+
+---
+
+**Example**:  
+
+# Tuples
+```python
+my_tuple = (10, 20, 30, 40)
+print("Original Tuple:", my_tuple)  # Output: Original Tuple: (10, 20, 30, 40)
+```
+
+## 1.Accessing elements
+```python
+print("First Element:", my_tuple[0])       # Output: First Element: 10
+print("Last Element:", my_tuple[-1])       # Output: Last Element: 40
+```
+
+## 2.Convert tuple to list, modify, and convert back
+```python
+
+my_list = list(my_tuple)
+my_list.append(50)
+my_tuple = tuple(my_list)
+print("Modified Tuple:", my_tuple)         # Output: Modified Tuple: (10, 20, 30, 40, 50)
+```
+
+# Sets
+```python
+my_set = {10, 20, 30, 40}
+print("Original Set:", my_set)             # Output: Original Set: {40, 10, 20, 30}
+```
+
+## 1.Add and remove elements
+```python
+my_set.add(50)
+my_set.remove(20)
+print("Updated Set:", my_set)              # Output: Updated Set: {40, 10, 50, 30}
+```
+
+## 2.Set Operations
+```python
+set1 = {1, 2, 3, 4}
+set2 = {3, 4, 5, 6}
+print("Union:", set1.union(set2))          # Output: Union: {1, 2, 3, 4, 5, 6}
+print("Intersection:", set1.intersection(set2)) # Output: Intersection: {3, 4}
+print("Difference:", set1.difference(set2))     # Output: Difference: {1, 2}
+```