CODE100 Puzzles

CODE100 is a coding competition where the challengers have to prove their knowledge and coding skills. Some of the rounds are quizzes and buzzer questions, while others are language-agnostic coding challenges.

Due to popular demand, we are publishing the challenges and solutions of CODE100 here. Check out the different challenges, get explanations how to approach a problem like that and example code that solve the puzzle.

On-stage challenges

WeAreDevelopers World Congress 2023

• Numbers from string
• Anagrams
• Linked List

Zagreb 2023

• Crew manifest challenge - how many on each ship?
• Crew manifest challenge - what’s their job?

Amsterdam 2024

• Quiz and knowledge rounds with explanations and comment
  • Development Knowledge Round
  • Pseudo Code Round
  • Audience Shout Out Rounds
• Code challenges
  • Web proposal strings
  • Cat pic challenge
  • Stars in their eyes

Manchester 2024

• Quiz and knowledge rounds with explanations and comment
  • Development Knowledge Round
  • Pseudo Code Round
  • Audience Shout Out Rounds
• Code challenges
  • Manchester United
  • Hidden figures
  • How does it feel?

WeAreDevelopers World Congress 2024

• Quiz and knowledge rounds with explanations and comment
  • Development Knowledge Round
  • Pseudo Code Round
  • Audience Shout Out Rounds
• Code challenges
  • Shift Left
  • No Babel needed

On-line challenges (Dev Digest)

• Developer DNA
• Event Block
• Old School Types
• Happy new year
• Packed snowflake
• Hitting the Chimney
• LIVE days

LIVE Days challenges

• LIVE Day Challenges