Day 6: Guard Gallivant

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FAQ

  • TunaCowboy@lemmy.world
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    21 days ago

    I added each visited position/direction to a set, and when a ‘state’ is reached again you have entered a loop:

    v = set()
    while t[g.r][g.c] != 'X':
        state = (g.r, g.c, g.d)
        if state in v:
            acc += 1
            break
        v.add(state)
        g.move(t)
    

    You can view my full solution here.