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49 lines
1.0 KiB
Python
49 lines
1.0 KiB
Python
4 years ago
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import re
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rules = []
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my_ticket = None
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tickets = []
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with open('input', 'r') as f:
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line = f.readline() # heading rules
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while line != '\n':
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rules.append(line)
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line = f.readline()
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f.readline() # heading my_ticket
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my_ticket = f.readline()
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f.readline() # newline
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f.readline() # heading tickets
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tickets = f.readlines()
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def parse_ticket(raw):
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return list(map(int, raw.split(',')))
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def parse_rule(raw):
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return list(map(int, re.findall('[0-9]+', raw)))
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def in_range(num, lower, upper):
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return num >= lower and num <= upper
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my_ticket = parse_ticket(my_ticket)
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tickets = list(map(parse_ticket, tickets))
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rules = list(map(parse_rule, rules))
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error_rate = 0
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for ticket in tickets:
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for num in ticket:
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matches_rule = False
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for rule in rules:
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minA, maxA, minB, maxB = rule
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if in_range(num, minA, maxA) or in_range(num, minB, maxB):
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matches_rule = True
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if not matches_rule:
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error_rate += num
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print(error_rate)
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