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userturkey13 sieg/heil  2yr ago (text post) 636 thread views #128650

Advent of code day 4 :marseysad:

This is the advent of code day 4 thread for bragging about your solution and bullying people who haven't gotten it yet :marseyill:

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with range and set its easy. Don't care about performance

with open('input04.txt') as file:
    lines = [line.split(',') for line in file]

# a and b
count_a = 0
count_b = 0
for pair in lines:
    lower,upper = pair[0].split('-')
    id_set_1 = set(range(int(lower),int(upper)+1))
    lower,upper = pair[1].split('-')
    id_set_2 = set(range(int(lower),int(upper)+1))
    if id_set_1.issubset(id_set_2) or id_set_1.issuperset(id_set_2): # a
        count_a += 1
    if len(id_set_1.intersection(id_set_2)) > 0: # b
        count_b += 1
print("Part a:", count_a)
print("Part b:", count_b)
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sets in python are so unoptimized it's hilarious how slow they are in basically anything

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