36 lines
951 B
Python
36 lines
951 B
Python
import sys
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import re
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from collections import defaultdict, Counter, deque
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#import pyperclip as pc
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def pr(s):
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print(s)
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# pc.copy(s)
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sys.setrecursionlimit(10**6)
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infile = sys.argv[1] if len(sys.argv)>=2 else '7.in'
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infile = '/home/bandeira/git.bandeira/aoc/2024/day07/input.day07'
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p1 = 0
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p2 = 0
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D = open(infile).read().strip()
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def is_valid(target, ns, p2):
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if len(ns) == 1:
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return ns[0]==target
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if is_valid(target, [ns[0]+ns[1]] + ns[2:], p2):
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return True
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if is_valid(target, [ns[0]*ns[1]] + ns[2:], p2):
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return True
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if p2 and is_valid(target, [int(str(ns[0])+str(ns[1]))] + ns[2:], p2):
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return True
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return False
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for line in D.strip().split('\n'):
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target, ns = line.strip().split(':')
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target = int(target)
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ns = [int(x) for x in ns.strip().split()]
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if is_valid(target, ns, p2=False):
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p1 += target
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if is_valid(target, ns, p2=True):
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p2 += target
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pr(p1)
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pr(p2) |