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Discussion on: AoC Day 2: Inventory Management System

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Replies for: from collections import defaultdict from difflib import SequenceMatcher from operator import itemgetter def similar(a, b): return SequenceMa...

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Ryan Palo •

Nice! Don’t forget about collections.Counter for part 1! I didn’t know about difflib though. Cool!

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Lasse Schultebraucks •

Thanks for the hint! Will do that later!

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Lasse Schultebraucks • 
def part_one():
    word_twice_count = 0
    word_three_times_count = 0

    with open('input.txt', 'r') as input_file:
        for line in input_file:
            line_counter = Counter(line)
            if 2 in line_counter.values():
                word_twice_count += 1
            if 3 in line_counter.values():
                word_three_times_count += 1

    checksum = word_twice_count * word_three_times_count

    print 'checksum is ' + str(checksum)

My edited solution for part one with collections Counter