day 5: we do a little bit of numpy
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day05.py
37
day05.py
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@ -1,27 +1,26 @@
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import fileinput
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import sys
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from collections import defaultdict, deque
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import re
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from copy import deepcopy
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import numpy
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input = sys.stdin.read().split("\n")
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inp_stacks, inp_moves = (x.split("\n") for x in sys.stdin.read().split("\n\n", 1))
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rows = (line[1::4] for line in input[::-1] if "[" in line)
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stacks = [[c for c in x if c != ' '] for x in zip(*rows)]
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stacks2 = deepcopy(stacks)
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RE = re.compile(r"move (\d+) from (\d+) to (\d+)")
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for line in input:
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m = RE.match(line)
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if not m:
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rows = (line[1::4] for line in inp_stacks[::-1] if "[" in line)
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stacks = [numpy.array([ord(c) for c in x if c != ' '], dtype=numpy.int8) for x in zip(*rows)]
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stacks1 = numpy.array(stacks)
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stacks2 = numpy.ndarray.copy(stacks1)
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for i, line in enumerate(inp_moves):
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if i % 10000 == 0:
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print(i, len(inp_moves), end="\r")
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if not line:
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continue
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n, f, t = int(m[1]), int(m[2]) - 1, int(m[3]) - 1
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_, a, _, b, _, c = line.split()
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n, f, t = int(a), int(b) - 1, int(c) - 1
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stacks[t].extend(reversed(stacks[f][-n:]))
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del stacks[f][-n:]
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stacks1[t] = numpy.concatenate((stacks1[t], stacks1[f][-n:][::-1]))
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stacks1[f] = stacks1[f][:-n]
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stacks2[t].extend(stacks2[f][-n:])
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del stacks2[f][-n:]
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stacks2[t] = numpy.concatenate((stacks2[t], stacks2[f][-n:]))
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stacks2[f] = stacks2[f][:-n]
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print("".join(s[-1] for s in stacks), "".join(s[-1] for s in stacks2))
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print("".join(chr(s[-1]) for s in stacks1), "".join(chr(s[-1]) for s in stacks2))
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