CTF! Submit your flag when you have an answer

Submit your flags here.

Enter your team name (or yours if you are working alone)

Enter the question and flag in the format difficulty-question-flag

Rules

  • Teams of up to 3
  • Flags are the answers to computer science questions
  • Whoever has the most points at the end wins
  • Submit your answer using the form above. We will check
    them and let you know if your answer was right or wrong
  • You can submit multiple times for the same question. However,
    please wait for us to check and let you know
  • Submit 1 flag per team. Designate a submitter

Questions!

Freebie - 1 point

  1. Never gonna ____ ___ __

Easy - 5 points

  1. The numbers, what do they say?
    2 18 1 9 14 26 26 26
  2. What is the opening tag to create a comment in HTML?
  3. Can you convert the number 42 (base 10) to binary (base 2)?
  4. How would you make a hello world statement in Python? Flag is the line of code.
  5. How do you comment in python?
  6. How do you comment in Java?
  7. In python how do you make a function? The flag is 3 letters.
  8. What gets wetter the more it dries? The flag is the MD5 hash of the answer to the riddle

Medium - 10 points

  1. What is 0x3D (base 16) in decimal (base 10)?
  2. I heard a certain roman consul liked to keep secrets. Anyways arm spaghetti: om3e4di0gxpn3bd0gp
  3. Below is an encoded hex string. Decode this back into bytes to get the flag.
    486578436f6465466c616748657265
  4. ASCII is a 7-bit encoding standard which allows the representation of text using the integers 0-127. Using the below integer array, convert the numbers to their corresponding ASCII characters to obtain a flag.
    [65, 83, 67, 73, 73, 95, 112, 114, 49, 110, 116, 52, 98, 108, 51]
  5. Polybius walked in a square once, I think. Well anyways, while he was walking he wrote this message for you.
    4423152131112224433534315412244543434145114215

Hard - 20 points

  1. Take a look at this garden! On an unrelated note, has anyone seen my hex editor? Hint: the format of the flag is: Here is a flag “[the flag]”
  2. New York Times
    Sometimes I like to console myself when inspecting the grass for easter eggs, for they are not always immediately apparent.
    Hint: the format of the flag is: All the code that’s fit to [the flag]
  3. Put your detective caps on.