Traceback (most recent call last):


 "/home/ubuntu/.local/bin/oj", line 11, in <module>

sys.exit(main())


 "/home/ubuntu/.local/lib/python3.6/site-packages/onlinejudge/_implementation/main.py", line 297, in main

run_program(namespace, parser=parser)


 "/home/ubuntu/.local/lib/python3.6/site-packages/onlinejudge/_implementation/main.py", line 276, in run_program

test(args)


 "/home/ubuntu/.local/lib/python3.6/site-packages/onlinejudge/_implementation/command/test.py", line 218, in test

history += [test_single_case(name, paths['in'], paths.get('out'), args=args)]


 "/home/ubuntu/.local/lib/python3.6/site-packages/onlinejudge/_implementation/command/test.py", line 142, in test_single_case

answer = (info['answer'] or b'').decode()
# type: str
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte

Traceback (most recent call last):


 "mypy/build.py", line 1694, in parse_file


 "mypy/util.py", line 79, in decode_python_encoding
UnicodeDecodeError: 'ascii' codec can't decode byte 0xcc in position 6238: ordinal not in range(128)
