34 lines
805 B
Python
34 lines
805 B
Python
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#!/bin/python
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with open("input", 'r') as input:
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seat_id_max = 0
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for line in input:
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line = line.strip()
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row_lower = 0
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row_upper = 127
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col_lower = 0
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col_upper = 7
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row_chars = line[:7]
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col_chars = line[7:]
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for char in row_chars:
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if char == 'F':
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row_upper = (row_lower + row_upper) // 2
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elif char == 'B':
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row_lower = (row_lower + row_upper) // 2
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for char in col_chars:
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if char == 'L':
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col_upper = (col_lower + col_upper) // 2
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elif char == 'R':
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col_lower = (col_lower + col_upper) // 2
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seat_id = row_upper * 8 + col_upper
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seat_id_max = max(seat_id, seat_id_max)
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print(seat_id_max)
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