38 lines
909 B
Python
38 lines
909 B
Python
from math import floor, ceil
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input = []
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with open('day5_input.txt', 'r') as f:
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for line in f.readlines():
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input.append(line.strip())
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def get_row( r, low=0, high=127 ):
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if len(r) == 0 or low == high:
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return high
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else:
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if r[0] == 'F':
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return get_row(r[1:], low, floor((high+low)/2))
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else:
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return get_row(r[1:], ceil((high+low)/2), high)
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def get_col( c, low=0, high=7 ):
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if len(c) == 0 or low == high:
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return high
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else:
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if c[0] == 'L':
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return get_col(c[1:], low, floor((high+low)/2))
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else:
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return get_col(c[1:], ceil((high+low)/2), high)
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def get_seat( bpass ):
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row = get_row(bpass[:7])
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col = get_col(bpass[7:])
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return (row, col, row*8+col)
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max_seat = 0
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for bpass in input:
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seat = get_seat(bpass)
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if seat[2] > max_seat:
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max_seat = seat[2]
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print(max_seat) |