Chatbot

• Bot Introduction:
  • The bot first introduces itself with their name, birth-year and creator name.
• Name Reminder:
  • Then it asks the user’s name and greets them personally.
• Age guessing:

  • By asking the user for the remainders of their age when divided by 3, 5 and 7, the bot reveals their age by calculating using Chinese Remainder Theorem:

    n = (r1m1 + r2m2 + r3m3) % n1n2n3

    where,

    n - the number to be guessed

    ri - remainder when n is divided by the ith number

    m1 - 70, m2 - 21, m3 - 15 (mi is a modular inverse)

    n1 - 3, n2 - 5, n3 - 7

• Joke Time:
  • The bot offers to tell a joke upon request and delivers a random, lighthearted joke from a built-in collection.
• Riddle Time:
  • The bot challenges the user with a multiple-choice question. If the answer is incorrect, it prompts again until the correct choice is selected.
• Farewell:
  • Finally, the bot congratulates the user on completing the interaction and says goodbye.

Hello! My name is Chitti.
I was created in 2025.
How can I assist you today?

Please, remind me your name: Vasi   // user input
What a lovely name you have, Vasi!

Let me guess your age.
Please, enter remainders of dividing your age by 3, 5 and 7.
Remainder when divided by 3: 1  // user input
Remainder when divided by 5: 2  // user input
Remainder when divided by 7: 1  // user input
Your age is 22, that's a good time to start programming!

Would you like to hear a joke? (yes/no): yes    // user input
Why do programmers prefer dark mode? Because light attracts bugs!

Let's test your programming knowledge.
Why do we use methods?
1. To repeat a statement multiple times.
2. To decompose a program into several small subroutines.
3. To determine the execution time of a program.
4. To interrupt the execution of a program.

Please, choose the correct option (1-4): 2  // user input
Correct!

Congratulations, have a nice day!