📋 Lists

# List banana
fruits = ["Apple", "Banana", "Mango"]
marks  = [85, 92, 78, 95]
mixed  = ["Rahul", 20, True, 3.14]

print(fruits[0])   # Apple
print(fruits[-1])  # Mango
print(len(fruits))  # 3

lst = [3, 1, 4, 1, 5]
lst.append(9)    # end mein add
lst.insert(0,0) # index par add
lst.remove(1)   # pehla 1 hatao
print(lst.pop())    # last item nikalo
lst.sort()         # sort karo
print(lst)
lst.reverse()      # ulta karo
print(sum(lst))    # total

nums = [0,1,2,3,4,5]
print(nums[1:4])   # [1, 2, 3]
print(nums[:3])    # [0, 1, 2]
print(nums[3:])    # [3, 4, 5]
print(nums[::-1])  # [5, 4, 3, 2, 1, 0]
print(nums[::2])   # [0, 2, 4]

matrix = [
    [1, 2, 3],
    [4, 5, 6],
    [7, 8, 9]
]
print(matrix[0][0])  # 1
print(matrix[1][1])  # 5
print(matrix[2][2])  # 9

for row in matrix:
    print(row)

# Chapter 8: Lists — Advanced Practice
print("=== Lists Practice ===")

# Example 1: Basic usage
result = "Python mein Lists bahut powerful hai!"
print(result)

# Example 2: Real world use
data = ["Lists", "Python", "Hindi", "PythonHindi.in"]
for item in data:
    print(f"Item: {item}")

print("\nPractice complete! Great job! 🎉")

# Chapter 8: Lists — Advanced Examples
# Yeh code copy karo aur run karo!

# Example 1: Basic concept
print("=== Chapter 8: Lists ===")

# Example 2: List operations
items = ["Python", "Hindi", "Code", "Practice"]
for i, item in enumerate(items, 1):
    print(f"{i}. {item}")

# Example 3: Dictionary usage
chapter_info = {
    "number": 8,
    "title":  "Lists",
    "level":  "Beginner",
    "done":   False
}
for key, value in chapter_info.items():
    print(f"  {key:10}: {value}")

# Example 4: Function
def practice_summary(chapter, completed=False):
    status = "Complete ✅" if completed else "In Progress ⏳"
    return f"Chapter {chapter}: {status}"

print(practice_summary(8))
print(practice_summary(8, True))