Add homework solutionsAdded Python Basics - 1 Homework Solutions

homework_solutions/6.md_hw_solution.py

@@ -0,0 +1,85 @@
+# Homework: Tuples and Sets in Python
+
+# -------------------------------
+# 1️. Tuple Operations
+# -------------------------------
+
+# Create a tuple with 5 elements
+my_tuple = (10, 20, 30, 40, 50)
+print("Original tuple:", my_tuple)
+
+# Try to modify one of the elements (This will raise an error)
+try:
+    my_tuple[1] = 100
+except TypeError as e:
+    print("Error when trying to modify tuple:", e)
+
+# Perform slicing on the tuple to extract the second and third elements
+sliced_tuple = my_tuple[1:3]
+print("Sliced tuple (2nd and 3rd elements):", sliced_tuple)
+
+# Concatenate the tuple with another tuple
+another_tuple = (60, 70)
+combined_tuple = my_tuple + another_tuple
+print("Concatenated tuple:", combined_tuple)
+
+
+# -------------------------------
+# 2️. Set Operations
+# -------------------------------
+
+# Create two sets of favorite fruits
+my_fruits = {"apple", "banana", "cherry"}
+friends_fruits = {"mango", "banana", "grape"}
+
+# Find union, intersection, and difference
+print("\nUnion of fruits:", my_fruits | friends_fruits)
+print("Intersection of fruits:", my_fruits & friends_fruits)
+print("Difference (my fruits - friend's):", my_fruits - friends_fruits)
+
+# Add a new fruit to your set
+my_fruits.add("orange")
+print("After adding orange:", my_fruits)
+
+# Remove a fruit using remove() and discard()
+my_fruits.remove("banana")  # removes banana
+print("After remove('banana'):", my_fruits)
+
+# discard() doesn’t raise an error if fruit doesn’t exist
+my_fruits.discard("pineapple")
+print("After discard('pineapple') (no error even if not present):", my_fruits)
+
+# Try removing non-existing fruit using remove() → raises error
+try:
+    my_fruits.remove("pineapple")
+except KeyError as e:
+    print("Error when using remove() on non-existing element:", e)
+
+
+# -------------------------------
+# 3️. Tuple and Set Comparison
+# -------------------------------
+
+# Create a list of elements
+my_list = [1, 2, 3, 3, 2]
+
+# Convert it into both a tuple and a set
+my_tuple_from_list = tuple(my_list)
+my_set_from_list = set(my_list)
+
+print("\nTuple from list:", my_tuple_from_list)
+print("Set from list:", my_set_from_list)
+
+# Try adding new elements
+# Tuples are immutable, sets are mutable
+try:
+    my_tuple_from_list += (4,)
+    print("Tuple after adding element using +:", my_tuple_from_list)
+except TypeError as e:
+    print("Error adding element to tuple:", e)
+
+my_set_from_list.add(4)
+print("Set after adding element:", my_set_from_list)
+
+# Observation: Tuples allow duplicates and are immutable.
+# Sets remove duplicates and are mutable.

homework_solutions/7.md_hw_solution.py

@@ -0,0 +1,35 @@
+karnataka_dishes = {
+    "Bengaluru": "Bisi Bele Bath",
+    "Mysuru": "Mysore Pak",
+    "Mangaluru": "Neer Dosa",
+    "Hubballi": "Girmit",
+    "Udupi": "Masala Dosa"
+}
+
+
+karnataka_dishes["Shivamogga"] = "Kadubu"
+
+
+karnataka_dishes["Bengaluru"] = "Ragi Mudde"
+
+del karnataka_dishes["Udupi"]
+
+
+print("Cities:", karnataka_dishes.keys())
+
+print("Dishes:", karnataka_dishes.values())
+
+#Nested Dictionary Practice
+friends = {
+    "Ananya": {
+        "favorite_subject": "Maths",
+        "favorite_food": "Paneer Butter Masala"
+    },
+    "Rahul": {
+        "favorite_subject": "Science",
+        "favorite_food": "Masala Dosa"
+    }
+}
+
+
+print("Rahul's favorite food is:", friends["Rahul"]["favorite_food"])

homework_solutions/python_basics_1_homework.py

@@ -0,0 +1,22 @@
+# Homework Solutions for Python Basics - 1
+
+# 1️⃣ Arithmetic Practice
+a = 10
+b = 5
+
+print("Addition:", a + b)
+print("Subtraction:", a - b)
+print("Multiplication:", a * b)
+print("Division:", a / b)
+
+# 2️⃣ Swap Two Variables (using third variable)
+x = 5
+y = 10
+temp = x
+x = y
+y = temp
+print("After swapping using third variable:", x, y)
+
+# 3️⃣ Swap without third variable
+x, y = y, x
+print("After swapping without third variable:", x, y)

notes/2.md

@@ -114,6 +114,15 @@ print(x)  # Output: 10
 
 ---
 
+
+
+### **🧩 Quiz Time: Test Your Knowledge!**
+You’ve learned about Variables, Data Types, and Operators in Python — now test your understanding! 🎯  
+Click the link below to take a short interactive quiz:
+👉 [Take the Python Basics - 1 Quiz] (<https://docs.google.com/forms/d/e/1FAIpQLSellyshMLomDKsCNIC3LnajDm2lm26AV8jmM_ClV1bJmD8O6Q/viewform?usp=header>)
+(Add a post of your quiz marks too and use #engineeringinkannada and mention me.)
+
+
 ### **YouTube Reference**
 Watch the following YouTube video from my channel:
 - [Watch the tutorial on YouTube](https://youtu.be/jr1FF9-VAJs?si=gBFha6Rq_ae3i16r)

notes/homework_solutions/3.md_hw_solution.py

@@ -0,0 +1,47 @@
+# 🧩 3.md — Homework Solutions
+
+# -----------------------------
+# Simple Greeting Program
+# -----------------------------
+name = input("Enter your name: ")
+age = int(input("Enter your age: "))  # converting input to integer
+
+# Using + operator
+print("Hello, " + name + "! You are " + str(age) + " years old.")
+
+# Using f-string
+print(f"Hello, {name}! You are {age} years old.")
+
+
+# -----------------------------
+# String Manipulation Exercise
+# -----------------------------
+sentence = input("Enter a sentence: ")
+
+# Applying string methods
+uppercase_sentence = sentence.upper()
+lowercase_sentence = sentence.lower()
+replaced_sentence = sentence.replace(" ", "_")
+stripped_sentence = sentence.strip()
+
+print("Uppercase:", uppercase_sentence)
+print("Lowercase:", lowercase_sentence)
+print("Replaced:", replaced_sentence)
+print("Stripped:", stripped_sentence)
+
+
+# -----------------------------
+# Character Counter
+# -----------------------------
+text = input("Enter a string: ")
+count = len(text.replace(" ", ""))  # removes spaces and counts remaining characters
+
+print(f"Number of characters (excluding spaces): {count}")
+
+
+# -----------------------------
+# Escape Sequence Practice
+# -----------------------------
+print("Hello\n\tWorld")
+print("This is a backslash: \\")
+

notes/homework_solutions/4.md_hw_solution.py

@@ -0,0 +1,72 @@
+# Operators in Python — Homework Solutions
+
+# -----------------------------------------------
+# 1. Logical Operator Practice
+# -----------------------------------------------
+
+# Take two numbers as input
+num1 = int(input("Enter the first number: "))
+num2 = int(input("Enter the second number: "))
+
+# Both greater than 10
+if num1 > 10 and num2 > 10:
+    print("✅ Both numbers are greater than 10.")
+else:
+    print("❌ Both numbers are not greater than 10.")
+
+# At least one less than 5
+if num1 < 5 or num2 < 5:
+    print("✅ At least one number is less than 5.")
+else:
+    print("❌ Neither number is less than 5.")
+
+# The first is not greater than the second
+if not (num1 > num2):
+    print("✅ The first number is not greater than the second.")
+else:
+    print("❌ The first number is greater than the second.")
+
+
+# -----------------------------------------------
+# 2. Comparison Operator Challenge
+# -----------------------------------------------
+
+age = int(input("\nEnter your age: "))
+
+if age >= 18:
+    print("You are an adult.")
+else:
+    print("You are a minor.")
+
+
+# -----------------------------------------------
+# 3. Membership Operator Exercise
+# -----------------------------------------------
+
+text = input("\nEnter a string: ")
+
+# Check if 'a' is in the string
+if 'a' in text:
+    print("✅ The letter 'a' is present in the string.")
+else:
+    print("❌ The letter 'a' is not present in the string.")
+
+# Check if "Python" is not in the string
+if "Python" not in text:
+    print("✅ The word 'Python' is not found in the string.")
+else:
+    print("❌ The word 'Python' is found in the string.")
+
+
+# -----------------------------------------------
+# 4. Bitwise Operator Task
+# -----------------------------------------------
+
+a = int(input("\nEnter first integer (a): "))
+b = int(input("Enter second integer (b): "))
+
+print("\nBitwise AND (a & b):", a & b)
+print("Bitwise OR (a | b):", a | b)
+print("Bitwise XOR (a ^ b):", a ^ b)
+print("Left shift a by 2 positions (a << 2):", a << 2)
+print("Right shift b by 1 position (b >> 1):", b >> 1)

notes/homework_solutions/5.md_hw_solution.py

@@ -0,0 +1,38 @@
+# 🧩 Homework Solutions for 5.md (Lists in Python)
+
+# -----------------------------------------
+# 1️⃣ List Manipulation Exercise
+# -----------------------------------------
+
+# Step 1: Create a list of 5 items
+items = ["apple", "banana", "cherry", "date", "fig"]
+print("Original list:", items)
+
+# Step 2: Add a new item to the end
+items.append("grape")
+print("After adding an item at the end:", items)
+
+# Step 3: Add another item at the second position
+items.insert(1, "kiwi")
+print("After inserting 'kiwi' at second position:", items)
+
+# Step 4: Remove the third item from the list
+items.pop(2)
+print("After removing the third item:", items)
+
+
+# -----------------------------------------
+# 2️⃣ Reverse and Sort a List
+# -----------------------------------------
+
+# Step 1: Create a list of numbers
+numbers = [10, 3, 7, 2, 9, 1]
+print("\nOriginal numbers list:", numbers)
+
+# Step 2: Sort the list in descending order
+numbers.sort(reverse=True)
+print("Sorted in descending order:", numbers)
+
+# Step 3: Reverse the sorted list
+numbers.reverse()
+print("After reversing the sorted list:", numbers)

notes/homework_solutions/python_basics_1_homework.py

@@ -0,0 +1,22 @@
+# Homework Solutions for Python Basics - 1
+
+# 1️⃣ Arithmetic Practice
+a = 10
+b = 5
+
+print("Addition:", a + b)
+print("Subtraction:", a - b)
+print("Multiplication:", a * b)
+print("Division:", a / b)
+
+# 2️⃣ Swap Two Variables (using third variable)
+x = 5
+y = 10
+temp = x
+x = y
+y = temp
+print("After swapping using third variable:", x, y)
+
+# 3️⃣ Swap without third variable
+x, y = y, x
+print("After swapping without third variable:", x, y)