60 lines
1.6 KiB
Python
60 lines
1.6 KiB
Python
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#!/usr/bin/env python3
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lines = []
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with open('/home/wasp/personal/x/fun/advent-of-code/2023/inputs/day05.txt') as f:
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lines = f.readlines()
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# part 1
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seeds = []
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maps = []
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parsing_map = False
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current_map = {}
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for line in lines:
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if 'seeds:' in line:
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seeds = list(map(lambda x: int(x.strip()), line.split(':')[1].strip().split()))
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else:
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if 'map' in line:
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parsing_map = True
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spl = line.split(' ')[0].split('-')
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source = spl[0]
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target = spl[2]
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current_map['source'] = source
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current_map['target'] = target
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current_map['map'] = {}
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elif parsing_map:
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if line == '\n':
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maps.append(current_map)
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current_map = {}
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parsing_map = False
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else:
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spl = line.split(' ')
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dest = int(spl[0])
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source = int(spl[1])
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length = int(spl[2])
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for i in range(length):
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current_map['map'][source + i] = dest + i
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maps.append(current_map)
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destinations = []
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for seed in seeds:
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source_type = 'seed'
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m = next((m for m in maps if m['source'] == source_type), None)
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source = seed
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destination = None
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while (not m is None):
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if source in m['map'].keys():
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destination = m['map'][source]
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else:
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destination = source
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source_type = m['target']
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source = destination
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m = next((m for m in maps if m['source'] == source_type), None)
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destinations.append(destination)
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print(min(destinations))
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