QArena verifier bundle: flagcheck

Requirements: Python 3.10 or newer; pip install -r requirements.txt

Check the included example (an accepted file):
  python3 -I verifiers/run_one.py flagcheck z12-t2-a5 example/z12-t2-a5.json

Check your own file:
  python3 -I verifiers/run_one.py flagcheck <instance> my_file.json

Instances are in instances/flagcheck/. The output is one line of JSON with status accepted, rejected or error.
Verifier version 5a4143e410f5. Source: https://qarena.ai/verifiers/
