Answer:

‎ ‎ class User:

def __init__(self, username, email):

self.username = username

self.email = email

class Post:

def __init__(self, author, title, content):

self.author = author

self.title = title

self.content = content

self.comments = []

def add_comment(self, comment):

self.comments.append(comment)

class Comment:

def __init__(self, author, content):

self.author = author

self.content = content

class Forum:

def __init__(self):

self.users = []

self.posts = []

def register_user(self, username, email):

user = User(username, email)

self.users.append(user)

print(f"User {username} registered successfully!")

def create_post(self, username, title, content):

author = self.find_user(username)

if author:

post = Post(author, title, content)

self.posts.append(post)

print(f"Post '{title}' created successfully!")

else:

print(f"User '{username}' does not exist.")

def add_comment(self, username, post_title, content):

author = self.find_user(username)

post = self.find_post(post_title)

if author and post:

comment = Comment(author, content)

post.add_comment(comment)

print("Comment added successfully!")

elif not author:

print(f"User '{username}' does not exist.")

elif not post:

print(f"Post '{post_title}' does not exist.")

def find_user(self, username):

for user in self.users:

if user.username == username:

return user

return None

def find_post(self, post_title):

for post in self.posts:

if post.title == post_title:

return post

return None

# Example Usage:

forum = Forum()

# Register Users

forum.register_user("Alice", "[email protected]")

forum.register_user("Bob", "[email protected]")

forum.register_user("Charlie", "[email protected]")

# Create Posts

forum.create_post("Alice", "Introduction", "Hello, everyone!")

forum.create_post("Bob", "Question", "Can someone help me with math homework?")

forum.create_post("Charlie", "Discussion", "What are your favorite books?")

# Add Comments

forum.add_comment("Bob", "Introduction", "Welcome, Alice!")

forum.add_comment("Alice", "Question", "Sure, what do you need help with?")

forum.add_comment("Charlie", "Question", "I'm not good at math, but I can recommend some books!")

Answer:

yeah bro i remember you

I never forget my brothers

well am fine what about you..

हम आँसूओ को शराब कहते है

और अाज हम ज़िन्दगी को अज़ाब

कहते हैं

हम से मिलना तो सोच समझ कर

मिलना

हमे लोग अक्सर ख़राब कहते हैं...