Advent of Code 2020, now in the most terse and awful python possible
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4 years ago
#!/usr/bin/env python3
from sys import argv
b = [int(x.replace("F", "0").replace("B", "1").replace("L", "0").replace("R", "1"), 2) for x in open(argv[1])]
ok2 = 0
for x in range(min(b), max(b)+1):
if x not in b:
ok2 = x
break
print(max(b))
print(ok2)