Commit a7459a3

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Added alternative.

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+14

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+14

-9

lines changed

Lines changed: 1 addition & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -11,7 +11,7 @@`
`11`	`11`	`\|[07](https://adventofcode.com/2020/day/7)\|Handy Haversacks\|[py](/day07/main.py), [alt](/day07/alt.py)\|`
`12`	`12`	`\|[08](https://adventofcode.com/2020/day/8)\|Handheld Halting\|[py](/day08/main.py)\|`
`13`	`13`	`\|[09](https://adventofcode.com/2020/day/9)\|Encoding Error\|[py](/day09/main.py)\|`
`14`		`-\|[10](https://adventofcode.com/2020/day/10)\|Adapter Array\|[py](/day10/main.py)\|`
	`14`	`+\|[10](https://adventofcode.com/2020/day/10)\|Adapter Array\|[py](/day10/main.py), [alt](/day10/alt.py)\|`
`15`	`15`	`\|[11](https://adventofcode.com/2020/day/11)\|-\|-\|`
`16`	`16`	`\|[12](https://adventofcode.com/2020/day/12)\|-\|-\|`
`17`	`17`	`\|[13](https://adventofcode.com/2020/day/13)\|-\|-\|`

Lines changed: 10 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,10 @@`
	`1`	`+import numpy as np`
	`2`	`+`
	`3`	`+with open("input.txt") as file:`
	`4`	`+ d = sorted(map(int, file.readlines()))`
	`5`	`+`
	`6`	`+df = np.array([1] + list(np.diff(d)) + [3])`
	`7`	`+rle = np.diff([-1] + [i for i, x in enumerate(np.diff(df)) if x != 0] + [len(df)-1])`
	`8`	`+m = [2x - sum("000" in bin(y)[2:].zfill(x) for y in range(2x)) for x in range(max(rle) + 1)]`
	`9`	`+print((df == 1).sum()*(df == 3).sum())`
	`10`	`+print(np.prod([m[x-1] for i, x in enumerate(rle) if i % 2 == 0]))`

Lines changed: 3 additions & 8 deletions

Original file line number	Diff line number	Diff line change
`@@ -5,13 +5,8 @@`
`5`	`5`	`numbers = sorted([int(x) for x in f])`
`6`	`6`
`7`	`7`	`k = np.diff(numbers)`
`8`		`-print((1+len(k[k == 1])) * (1+len(k[k == 3])))`
	`8`	`+print((1+(k == 1).sum()) * (1+(k == 3).sum()))`
`9`	`9`
`10`		`-# 1 --> ignore`
`11`		`-# 2 --> 1, 0 (2)`
`12`		`-# 3 --> 1 1, 1 0, 0 1, 0 0 (4)`
`13`		`-# 4 --> 1 1 1, 1 0 0, 0 1 0, 0 0 1, 1 1 0, 1 0 1, 0 1 1 (7)`
`14`	`10`	`cands = [e for i, e in run_length.encode(np.diff([0]+numbers)) if i == 1 and e > 1]`
`15`		`-t = {2: 2, 3: 4, 4: 7}`
`16`		`-transformed = [t[e] for e in cands]`
`17`		`-print(np.prod(transformed))`
	`11`	`+combinations = {2: 2, 3: 4, 4: 7}`
	`12`	`+print(np.prod([combinations[e] for e in cands]))`

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