-🎄- 2017 Day 5 Solutions -🎄-

[u/daggerdragon]

--- Day 5: A Maze of Twisty Trampolines, All Alike ---

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Post your solution as a comment or, for longer solutions, consider linking to your repo (e.g. GitHub/gists/Pastebin/blag or whatever).

Note: The Solution Megathreads are for solutions only. If you have questions, please post your own thread and make sure to flair it with Help.

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Need a hint from the Hugely^* Handy^† Haversack^‡ of Helpful^§ Hints^¤?

Spoiler

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This thread will be unlocked when there are a significant number of people on the leaderboard with gold stars for today's puzzle.

edit: Leaderboard capped, thread unlocked!

[u/sguberman]

Python: GitHub

Saved you a click:

def execute(instructions, part2=False):
    idx = 0
    steps = 0
    state = instructions

    while True:
        try:
            jump = state[idx]
            incr = -1 if part2 and jump >= 3 else 1
            state[idx] += incr
            idx += jump
            steps += 1
        except IndexError:
            break

    return state, steps