Description

Even in 2025, celebrate your friends’ birthdays with the birthday contract!

• 2025/03/25: Standardized all Solidity contracts to pragma solidity =0.8.28 (Thanks to @유령이무서운귀신 for catching the issue!)

Challenge environment

• You can interact with the challenge server via:

  $ nc host3.dreamhack.games {external port mapped to 31337}
  
  1 - launch new instance
  2 - kill instance
  3 - get flag (if isSolved() is true)
  action? 
  

• When using the RPC endpoint obtained from 'launch new instance', replace {HTTP_PORT} with the external port mapped to 8545.