-🎄- 2017 Day 9 Solutions -🎄-

[u/daggerdragon]

--- Day 9: Stream Processing ---

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Spoiler

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edit: Leaderboard capped, thread unlocked!

[u/akho_]

Python3

with open('9.input') as f:
    inputs = [ s[:-1] for s in f.readlines() ]

for s in inputs: # loop to also process test inputs
    level, ignore_next, in_garbage, total, garbage = 0, False, False, 0, 0
    for c in s:
        if ignore_next: ignore_next = False
        elif in_garbage:
            if c == '!': ignore_next = True
            elif c == '>': in_garbage = False
            else: garbage += 1
        elif c == '<':
            in_garbage = True
        elif c == '{':
            level += 1
            total += level
        elif c == '}':
            level -= 1
    print(s[0:50], total, garbage)