My Advent of Code solutions in Python.
kevinyap.ca/2019/12/going-fast-in-advent-of-code/
advent-of-code
python
Add 2017/17
+34
+31
2017/day17.py
+31
2017/day17.py
···
1
+
import fileinput
2
+
3
+
INC = int(fileinput.input()[0])
4
+
5
+
# Part 1
6
+
spinlock = [0]
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pos = 0
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+
9
+
for i in range(1, 2017 + 1):
10
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pos = (pos + INC) % len(spinlock)
11
+
spinlock.insert((pos + 1), i)
12
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pos += 1
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+
14
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val = spinlock[spinlock.index(2017) + 1]
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print "Value after 2017 in small buffer:", val
16
+
17
+
# Part 2
18
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snd_elem = None
19
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lock_len = 1
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pos = 0
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+
22
+
for i in range(1, 50000000 + 1):
23
+
pos = (pos + INC) % lock_len
24
+
25
+
if pos == 0:
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snd_elem = i
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+
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lock_len += 1
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pos += 1
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+
31
+
print "Value after 0 in large buffer:", snd_elem
+1
2017/inputs/17.txt
+1
2017/inputs/17.txt
···
1
+
324