21 changed files with 25 additions and 5825 deletions
--- a/README.md
+++ b/README.md
@ -12,5 +12,3 @@ https://adventofcode.com/2020/
 | 4 |  `**`  |  `**`   |      |
 | 5 |        |  `**`   |      |
 | 6 |        |  `**`   |      |
 `test.sh` can be used to run all solutions and automatically compares them to (my) puzzle inputs and the expected outputs.
--- a/data/day1.expected
+++ b/data/day1.expected
@ -1,2 +0,0 @@
 1018336
 288756720
--- a/data/day1.input
+++ b/data/day1.input
@ -1,200 +0,0 @@
 1028
 1987
 1938
 1136
 1503
 1456
 1107
 1535
 1946
 1986
 855
 1587
 1632
 1548
 1384
 1894
 1092
 1876
 1914
 1974
 1662
 1608
 2004
 1464
 1557
 1485
 1267
 1582
 1307
 1903
 1102
 1578
 1421
 1184
 1290
 1786
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 1930
 1131
 1802
 1685
 1735
 1498
 1052
 1688
 990
 1805
 1768
 1922
 1781
 1897
 1545
 1591
 1393
 1186
 149
 1619
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 1708
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 1705
 1942
 1684
 1460
 1123
 1439
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 1731
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 1481
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 1110
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 1443
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 1883
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 1697
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 1689
 1103
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 1843
 1544
 1877
 1718
 1866
 1929
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 1375
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 1222
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 1373
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 1087
 1959
 1970
 1112
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 1412
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 1767
 1091
 1653
 1609
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 1912
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 935
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 1878
 1452
 1935
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 968
 1905
 1077
 1701
 1789
 1506
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 1125
 1686
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 1991
 1215
 1776
 1976
 846
 1923
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 1888
 1193
 1146
 1583
 1315
 1372
 1963
 1491
 1777
 1799
 1363
 1579
 1367
 1863
 1983
 1679
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 1654
 1953
 1297
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 1502
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 1934
 1185
 1998
 1764
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 1207
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 1494
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 1057
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 1536
 2007
 644
 1173
 1692
 1493
 1756
 1916
 1890
 1908
 1887
 1241
 1447
 1997
 1967
 1098
 1287
 1392
 1932
--- a/data/day2.expected
+++ b/data/day2.expected
@ -1,2 +0,0 @@
 603
 404
--- a/data/day2.input
+++ b/data/day2.input
--- a/data/day3.expected
+++ b/data/day3.expected
@ -1,2 +0,0 @@
 205
 3952146825
--- a/data/day3.input
+++ b/data/day3.input
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--- a/data/day4.expected
+++ b/data/day4.expected
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--- a/data/day4.input
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--- a/data/day5.expected
+++ b/data/day5.expected
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 BFFBBBBLLL
 BBFFBFFLRR
 FFBBFBFLRR
 BBBBFBFRRL
 BBFBFBBRRR
 BBFFFFBLLR
 BBBBFFBLLR
 BBBFFBFLRR
 FFBFFBBLRL
 BBFBBBFRLR
 FBFFBFFLRL
 FFFFBFBLRL
 BFBFFFBLRL
 FBBBFBFLRR
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 FFFBBBFRRL
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 FFFFBFFRRR
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 FFBFFBBRRR
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 BBFFFFBLLL
 FBBFFFFRRR
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 FBBFFFBLLR
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 FFFBBFFLRL
 BBFFBFBRRR
 BFBFFFFLRL
 FFFFBFBRLL
 FBFFFBFRRL
 BBBFBBBLRL
 FFBBBFFRLL
 BBFBFFBRRL
 BFFBFFBLLL
 BBFBBFBRRR
 FBBFBBFLLR
 BFFFFFFLRR
 FBBBBBBRRR
 BBFBBBFRRL
 FFFBBBFLLR
 FBBBBFFLRL
 FBFFBFFRLL
 BFBFBFBRLR
 FBBBFFFRLL
 BBFFFBBRRR
 BBFBFBBLRR
 BFFFFFBRLL
 FBFBFFFLLL
 FBFFBFBLLR
 BFFBFFBRRL
 BFBBFFFLRR
 BFBBBFBLLR
 FFFBBBBRLR
 FFBFFBFRRL
 FFBBBFBLLR
 BBFBFFBRRR
 FFBBBBBRLR
 BBFFBBBLLL
 BFBBFFBLLL
 BFBFBBFRRR
 BBBBFFFLLL
 FBBFFBBRRL
 FFBBBFBRRL
 BFBFBBBRRR
 FBFBBFFLLL
 FFBBFFFLLR
 FBBBBBFLLL
 FFBFBFFLRL
 FFBFFBFRRR
 FBBBFBBRLR
 BFFFFBFLRL
 FFFBFFFLLR
 BBFBFFBLLR
 FFBBFFBLRL
 FFFBFBBLRL
 BFFFBBBRLR
 BBFFFFBRRL
 FBBFFBBLRR
 FBFFFFFLRL
 BBFFBFFRLR
 BBFBFFFRLR
 FFFBFBFRLR
 BFFFBBFRRL
 BBBFFBFLLL
 BBFBBBBLRL
 BFFFFFBLLR
 BFFFFBBLLR
 BBBFFBFRRR
 BBFFFFFRRL
 BBFFFFBRLR
 FFBBBFFLRL
 BFFFBBBRLL
 BFFFBBFRLL
 FBFBBBFRLR
 BBFBFBFRRL
 FBFFBFBRLR
 FBFFBFFRRR
 FBFFFBBLRR
 BFFFBBFLRL
 FBFBFFBLRL
 FBBBBBBRRL
 BFFFBFBRLR
 FBBBBFBRLL
 BBFFBBFLLR
 BBFBBFFLRR
 FBFFFBFLLR
 FBBBFBBLLL
 FFBFFFBLRR
 BBFBFFBLRR
 FFBFFBBRLL
 BFFBBFFRLL
 FBFFFFBRRR
 FFFBFBBRRL
 BBBBFBFLLR
 BBFBFFFLRL
 BFBFFFFRLR
 BBFBFFFRRR
 BBBFBBBRRL
 BFFBBBBLRR
 BFFFBBBLRL
 BBFFFBBRLR
 FBBBFFBRLR
 FBBBFFBLLL
 FBBBBBBLRL
 BBBFFFBLRL
 FBFBFFFLRL
 BFBFFBFRLL
 BBFFFFBRLL
 BBFFFFFRLL
 FFFBFFFRRL
 BBFFBBFLRR
 BBBBFFFRRL
 BFFBBBBLLR
 BBBBFFFRLR
 BBBFFFBRLR
 FBBFFBBRLR
 BFFBBFBLLL
 BBBFBBFLRL
 BFBFBBFLLR
 BBFBBFFLRL
 BFFBBBFRRL
 FFFFBBFLRR
 FBFFBBBLLR
 BFBFBFBLLR
 FBBBFFBRRR
 FBBBBBFRLR
 BBFBFFBRLR
 BBFFBFFRLL
 FFFBFFBLLR
 BBFFBFBLRR
 FBFFFBBRRR
 BFFBBBBRRR
 FBFFBBBRRL
 BBFBFBFLLR
 FBFBBFFLRL
 BBBBFFFRRR
 BBFBFFFLLL
 BFFFBFBLLR
 FBBBBFFLRR
 FBFFBBFLLL
 FFFFBFBRRL
 BBFBFBFLLL
 BFBBFFBLRL
 BFFFBFBLRR
 BBBBFFBRRR
 FBFBBFBRRR
 FBBFBFBRLR
 FBBFBFFLRR
 FBFBBBBLRR
 FBBFBFFRLR
 FBBBBBFLRL
 FBBFBFFRLL
 FFBBFFBRRR
 BFBFBFBLRR
 FBBFBBBLRL
 FBBBFBFRRR
 BFFBFBFRRL
 FBBFFFFLRL
 BFBBBBFRLR
 FFBFBBBRLL
 BFFBBBBRRL
 BFBBFBBLLL
 FBFBFFFRRR
 BFBFBFBLRL
 FBBFFBFLLR
 FFFBFBBRRR
 FBBBBFFLLL
 FBFBBBBLRL
 FBBFBFBLRL
 FFBBFBBRRR
 FBFBFFBLRR
 FBFBFBBLLR
 FFFBFBFRLL
 FFFFBBFRRR
 BFBBBBBLLL
 BBFBBBBLLR
 FBBFFFFRRL
 FBBFBFBLLL
 BFFFBBFLLR
 FBBBFFBLLR
 FFBFFBFLLL
 BBBFFBBLLR
 BFBFFFFLLR
 FBFBBBFLRR
 FFBBBBFRRL
 FFFFBBBLRR
 FFBFFFFRRL
 BFBBFFFLRL
 BBBFBFBLLL
 FBFBBFBLRR
 BBFBBFBLLL
 BFFBFBBRLR
 BFBBFBBRRR
 FFBBFBFRLL
 BFFBFBFLLL
 BFFBBFBLRR
 FBBBBFBRRL
 BFBFBBBLRR
 FBBBBBBLLL
 BFFFBBBLLR
 BBFBFFFLLR
 BBBFFBBRLL
 BFFBBBFLRR
 BFFBFBFRRR
 BBBBBFFRLR
 BFFBFFFRLR
 FBFFFFFLLL
 BFFFBFBRLL
 FBBFBBFLLL
 FBBFBFBRRR
 FBFFBBFLLR
 FBBBFBFLLR
 FFFBFFFLRR
 FFBBBBFRRR
 BBBBFBFLRR
 FBFBFFBRRR
 BFFBFFBLLR
 FFBBFBBRLR
 FBFBFBBRRR
 FFBBBBBLRL
 FBBBBBFRRR
 FFFBFBFRRL
 FFBFBFBRRL
 BFBBBFBRLR
 BBBFBFFRRR
 BFFBBFBRLR
 BFFBBBBRLL
 FBBBBFFRRL
 BBBFBBBRLR
 BFFFFFFRRL
 FFFBBFFLRR
 BBFBFFBLRL
 BFFBFBFLRR
 BBBFFBBLRR
 BFBFFBFRRR
 BBBBFFBLLL
 FBFFBBBLRR
 BBFFBBFLLL
 FBFBBBBRRR
 BBFFBFBLLL
 BBBBFFFLRR
 FBFFBBBRLR
 BFBFFFBLRR
 BBFBBFFLLL
 BFFBBFFRRL
 BFFFBFFRRL
 BBFFFBBLRR
 FFBFFFFLRL
 FFBFBBFRLL
 FBFBFFFRLL
 BBFFFBFRLR
 FFFBBFBLRR
 BFBBBFBLLL
 BBFBFBFRLL
 BFBFBBFRLL
 BFFFFFBRRL
 FFBFBBBRLR
 BFBBFFBRLR
 BFBFBFFRLR
 FBBBBBBLRR
 FFBBBBFLRL
 FFFFBFBLRR
 FFBFFFBRRR
 FFBFBBFRLR
 BBBFFBFLRL
 FBBBBFFRLR
 BFFBBFBRLL
 BFFBBBFRLR
 FFFBFFBRRR
 BBBFBBBRRR
 FBFFBFFRRL
 FBFFFBFLLL
 BFBBBFFRRL
 BBFBFBBRLL
 BBFBFBBRRL
 FFFBFBFRRR
 BFBBFBBLRR
 FFFBBBFRRR
 BFFBFBBLRL
 BFFBFFBLRR
 BFBBBFFRRR
 FFFBBBFLRL
 FFBBFBFRRR
 FFBFBFBRLL
 FFBFFFBLLR
 FBBBBBBRLL
 FFFFBFBLLR
 FFBBFFFRRR
 FFFBFFFLLL
 FFBBFBBLLR
 FFBBBBFLRR
 FBBFFBBLLL
 BFBBFBBRLR
 FFFBFBBLLR
 BBFFBFBLRL
 FFBFBBFRRR
 BBBBFBBRLR
 BBBFBBFRLR
 BBFFBFFRRR
 FFBBBBBLLR
 FBFFBFBLRR
 FBBBBFBRLR
 FFFFBBFLLR
 BFBFBBFLLL
 FBBFBFBLRR
 FBBFFBFRLL
 BBFFFFFRLR
 FFBBFBFLRL
 BFBFBBBRLR
 FBBFBBFRRR
 FBFBFBBLRL
 BBBFFBBRRR
 FBBFFBBRRR
 FBFFFFBRLR
 FBBFBBFLRL
 FFFBBFBRRR
 FBFBBBBRLR
 FBBFFBBLLR
 FFFBBBBRRR
 BBBBBFFLLR
 FFFFBBBLLL
 BFFBBBFRLL
 FBFBBFBLRL
 BBBBFBFRLR
 BBFBFFBLLL
 BFBFFBFLRR
 BFFFFFBLRL
 BBBFBBFRRR
 FFBBBBBLRR
 FBFFFFFLLR
 FBFBBFFRLL
 BFBBBBBRRL
 FBFBFBBRLL
 FBBFBBBRRL
 FBFFBBBLRL
 BFFFBFFLLL
 BFBBBBBRRR
 FFFBBFFRRR
 BBFBBBFLRL
 FFFFBBFRLL
 FBFFFFFRLR
 FFFFBBBRLR
 FBFFBBFRLR
 FFFFBBBRLL
 BBFFBBBLRL
 FFBFBBFLRR
 BFBBBBBLRR
 BFFFFBBLLL
 FBFBBBBRRL
 BBBFBFFRRL
 BFBBFBBLRL
 BFBBBBFRRL
 FBFFFBBLLL
 FFBBFBBLRL
 BBFBFFBRLL
 BBBFFFFRRR
 FFFBBBBLRR
 FFFBBFBLRL
 FFFBBBBLLR
 BFBFBBBRRL
 BBBBBFFLRR
 BBBBFBBLLL
 BBBBFBBLRR
 FFFBBBFRLR
 FBBBFFFLLR
 BFFFBFBRRL
 BBFFFBFLLR
 BFBBFBFRLL
 BFBBBFFLRL
 FFBFFBBRRL
 FBFBBFFRLR
 BFFFFFBRRR
 FBFFFFBLLR
 FBBFBFFLLR
 FBBBFFFRLR
 FBFBFBFLLR
 FFFBBFBLLR
 BFBFFBFRRL
 FFFBBFBRLR
 FFBBFBBLRR
 FBBBFBBLLR
 BBBFFFFLLR
 BBBBFBFLLL
 BBFFFBFLLL
 BFFFBFFLRL
 BBFBBFFRLR
 BBFFBBFLRL
 FBBBBFBRRR
 FBBFFBFLLL
 FFFBFFBLRR
 FFBBFFFRLR
 FBBFFFBRLR
 BBBFBFBRLL
 BFBBFFFLLL
 FFFBBFFRLL
 BBFFBFBRLL
 FFBBBBBRRL
 FBFFBBBLLL
 FBBFFFBRRR
 BFFFBFFRLL
 FFBBBFFLLR
 FBBFBBFRLL
 FBBFFFFLRR
 FBBBBBFRLL
 BBBFFBBRLR
 FBFFBBFLRL
 FBBFFFBLLL
 BFBBBFFRLL
 FFFBBFFRLR
 BFBFFFBLLL
 FFFFBBBLLR
 BFFBFFFLLL
 BFBBFFBRRR
 BFFBFBBLLR
 FFBFFBFRLL
 FFFBBFFLLR
 FBFFFFFRRL
 BFFBBFFLRR
 FFBBFFBLLR
 FBBBFFBRRL
 FBBBFBBLRL
 BBFFBFFLRL
 BBBBFFBRRL
 BFBFFBBLRL
 BFBBFBFRRR
 FFFBBBBRLL
 FBBFBBBRRR
 BBBBFFFLRL
 FBFFBFBRRR
 BBBBFFFLLR
 FBBFFBFRLR
 FFFBBBBLRL
 BBFBBFBLRL
 BFBBBBFLLR
 BBBFBFBRRL
 BFBBBBFLLL
 BFBFFFBRRR
 FFBBFFBRLR
 FBBBFFFRRL
 BFFFFBBRRR
 FBFBBFBRLL
 BFBBFFBRLL
 FBBFBFFLRL
 BFFBBBBLRL
 BFFBFBFLRL
 FBBBFBBRRL
 BFBBBBFLRR
 BFBFFBBRRR
 BFFFBBFRLR
 BFFBFFBLRL
 BFFBBFBRRR
 BBFFBBBRRL
 BBBBFBBRLL
 FBBFBBBLRR
 FFBFBFFRLL
 FFBFFFFRRR
 BFFBBFFLRL
 BFBBFBBRLL
 BFBFFBBLRR
 FBFBFBFRRR
 BBFFFBFRRR
 BBFBBFFRRR
 FFBFBBBLLR
 FFFBFBFLLL
 BBFFFBBLLL
 FFBBFBBLLL
 BFBBFFFRRR
 BFBFBBBLRL
 FBFBBBFLRL
 BFBFBFBRRL
 FFFBFBFLLR
 BBFFFFBLRR
 BBFBFBFRLR
 FFBBFBFLLL
 BFBBBFBRLL
 BBBFFBFRLR
 BFFFFBFLLL
 FFBBBBFRLL
 BBFBBFFRLL
 BFFFBFFLRR
 BBFBBBFLLR
 FFBFBBFLRL
 BBBBFFBLRL
 BFBBBFBRRR
 FBBFBFFLLL
 FBFFBFFRLR
 BFFBFFFLRL
 FBFFBFFLLR
 FBFBBBBRLL
 BBFFFBFLRL
 BBFBBFBLRR
 BFFFFBBLRL
 BBFBFBFLRL
 FBBFBBBRLL
 FBBFFFFRLL
 FFBFBBBLLL
 FFBFFBBLLR
 BFBBBFFLLR
 BBBFBFFRLR
 BFFBFFFRRL
 BBFFBBBRLL
 BBFFBBFRLL
 FBBBBBBLLR
 BFFBFBBRRR
 BBFFFBBRRL
 FFBFFFFRLL
 FFFBFBBLRR
 BBFFBFBRRL
 BBFFFBBLRL
 FBFFFFBLRL
 BFFFFBFRLL
 BFFBBBFLLL
 BFBBFBFRRL
 FBBFFFBLRR
 FFBFFFFRLR
 FBBFFFFLLL
 FBFBBFFRRR
 FBFBBFFLLR
 FFBFFFBRRL
 BFBBBBFRLL
 BFFBBBFLRL
 FBFFBFBRRL
 FFBFFFFLRR
 FBBBFBBRLL
 BBFBBBFRRR
 BFFBFFFRLL
 FFFBBFFRRL
 BFBFFFBLLR
 FBFFFBFRLR
 FBFBBBFLLL
 FFBBFBFRRL
 BBBFBFFRLL
 FBFFBFFLRR
 BBFBBBFLRR
 FFBBBFBLRR
 FFFBFFFRLR
 FBFBFFBLLL
 BFBBBFFLLL
 BFFFFBBLRR
 FBFBBBFLLR
 FBFFBBFLRR
 FFBBFBBRRL
 BBFBFFFLRR
 BBFFBFFRRL
 FFBBFFFLLL
 FFBFBFFRRL
 BBBFBFBRLR
 BFBFFFBRLR
 FBFBBBBLLL
 FFBBBBBRLL
 FBBFBBBLLL
 BFFFBBFRRR
 BFBFFBFRLR
 BBBFFFFRLR
 FBFFBBFRLL
 FFBBFBFRLR
 BFFBFBBRLL
 BFBFBFFRRR
 FBBFFFBRLL
--- a/data/day6.expected
+++ b/data/day6.expected
@ -1,2 +0,0 @@
 6683
 3122
--- a/data/day6.input
+++ b/data/day6.input
--- a/day1/day1.py
+++ b/day1/day1.py
@ -16,6 +16,7 @@ def find_summing(arity: int, nums: Iterable[int]) -> int:
    return product(next(filter(lambda xs: sum(xs) == 2020, itertools.permutations(nums, r=arity))))
 if __name__ == '__main__':
-    nums = [int(n) for n in sys.stdin.readlines()]
+    with open(sys.argv[1], 'r') as f:
        nums = [int(n) for n in f.readlines()]
    print(find_summing(2, nums))
    print(find_summing(3, nums))
--- a/day2/day2.py
+++ b/day2/day2.py
@ -1,6 +1,5 @@
 #!/usr/bin/env python
 import re
 import sys
 from collections import Counter
 r = re.compile(r'(\d+)-(\d+) (.): (.*)')
@ -16,7 +15,8 @@ def do_line(req_func, line):
    return req_func(int(min_required), int(max_required), letter, password)
 if __name__ == '__main__':
-    lines = list(sys.stdin.readlines())
+    with open('input.txt', 'r') as f:
        lines = list(f.readlines())
    for func in (requirements_met_1, requirements_met_2):
        print(len(list(filter(lambda line: do_line(func, line), lines))))
--- a/day2/vhdl/run.sh
+++ b/day2/vhdl/run.sh
@ -1,25 +1,21 @@
-#!/usr/bin/bash
+#!/usr/bin/env sh
 set -eu
 INPUT=$(readlink --canonicalize-existing "$1")
 MODE=${2:-}
 GHDLFLAGS="--std=08 --workdir=workdir"
 cd "$(dirname "${BASH_SOURCE[0]}")"
 mkdir -p workdir
-if [[ $MODE = "--synth" ]]; then
+ghdl remove $GHDLFLAGS
-	for step in 1 2; do
+ghdl analyze $GHDLFLAGS parser.vhd verifier.vhd top.vhd sim.vhd
 ghdl elab-run $GHDLFLAGS sim -gSTEP=1 -gFILENAME="../input.txt"
 ghdl elab-run $GHDLFLAGS sim -gSTEP=2 -gFILENAME="../input.txt"
 echo "Synthesized: "
 for step in 1 2; do
 	ghdl remove $GHDLFLAGS
-		ghdl synth $GHDLFLAGS -gCOUNTER_WIDTH=12 -gSTEP="$step" parser.vhd verifier.vhd top.vhd -e top > top_syn.vhd 2>/dev/null
+	ghdl synth $GHDLFLAGS -gCOUNTER_WIDTH=12 -gSTEP="$step" parser.vhd verifier.vhd top.vhd -e top > top_syn.vhd
 	ghdl analyze $GHDLFLAGS top_syn.vhd sim.vhd
-		ghdl elab-run $GHDLFLAGS sim -gSTEP="$step" --ieee-asserts=disable < "$INPUT"
+	ghdl elab-run $GHDLFLAGS sim -gSTEP="$step" -gFILENAME="../input.txt" --ieee-asserts=disable-at-0
-	done
+done
 else
 	ghdl remove $GHDLFLAGS
 	ghdl analyze $GHDLFLAGS parser.vhd verifier.vhd top.vhd sim.vhd
 	ghdl elab-run $GHDLFLAGS sim -gSTEP=1 < "$INPUT"
 	ghdl elab-run $GHDLFLAGS sim -gSTEP=2 < "$INPUT"
 fi
--- a/day2/vhdl/sim.vhd
+++ b/day2/vhdl/sim.vhd
@ -6,12 +6,14 @@ use std.textio.all;
 entity sim is
 	generic (
 		FILENAME : string := "input.txt";
 		COUNTER_WIDTH : positive := 12;
 		STEP : natural range 1 to 2
 	);
 end entity;
 architecture a of sim is
 	file file_handle : text open read_mode is FILENAME;
 	signal char_in : character;
 	signal clk, reset, is_record : std_logic;
 	signal num_verified : unsigned(COUNTER_WIDTH-1 downto 0);
@ -47,8 +49,8 @@ begin
 		cycle_clock;
 		lines_loop: loop
-			exit lines_loop when endfile(input);
+			exit lines_loop when endfile(file_handle);
-			readline(input, current_line);
+			readline(file_handle, current_line);
 			is_record <= '1';
--- a/day3/day3.py
+++ b/day3/day3.py
@ -1,7 +1,5 @@
 #!/usr/bin/env python
 import sys
 def count_trees(right, down, lines):
    n = 0
    for i, line in enumerate(lines[::down]):
@ -11,7 +9,8 @@ def count_trees(right, down, lines):
    return n
 if __name__ == '__main__':
-    lines = [line.strip() for line in sys.stdin.readlines()]
+    with open('input.txt', 'r') as f:
        lines = [line.strip() for line in f.readlines()]
    print(count_trees(3, 1, lines))
--- a/day4/day4.hs
+++ b/day4/day4.hs
@ -3,7 +3,6 @@ import AoC
 import Control.Applicative ((<|>))
 import Control.Monad (guard, mfilter)
 import Data.Char (isDigit)
 import Data.List (intercalate)
 import Data.Maybe (mapMaybe)
 import Text.ParserCombinators.ReadP
 import Text.Read (readMaybe)
--- a/day4/day4.py
+++ b/day4/day4.py
@ -1,7 +1,5 @@
 #!/usr/bin/env python
 import sys
 def within(a, b, x):
    return a <= x <= b
@ -50,7 +48,8 @@ def split_on(f, it):
        yield current_part
 if __name__ == '__main__':
-    lines = [line.strip() for line in sys.stdin.readlines()]
+    with open('input.txt', 'r') as f:
        lines = [line.strip() for line in f.readlines()]
    specs = list(' '.join(lines) for lines in split_on(lambda l: l == "", lines))
--- a/test.sh
+++ b/test.sh
@ -1,52 +0,0 @@
 #!/usr/bin/bash
 set -euo pipefail
 cd "$(dirname "${BASH_SOURCE[0]}")"
 run_solution() {
 	if [ -d "$solution" ]; then
 		runfile=$solution/run.sh
 		[ -f "$runfile" ] || { echo "Error: $runfile not found"; exit 1; }
 		"$runfile" "$input"
 	else
 		case "$(basename "$solution")" in
 			*.hs)
 				runhaskell -icommon "$solution" < "$input"
 				;;
 			*.py)
 				python "$solution" < "$input"
 				;;
 			*)
 				echo "Error: Unknown solution type: $solution"
 				exit 1
 				;;
 		esac
 	fi
 }
 for day in day*; do
 	input=data/$day.input
 	expected=data/$day.expected
 	for solution in "$day"/*; do
 		echo -n "$solution... "
 		solution_output=$(mktemp)
 		trap "rm $solution_output" EXIT
 		run_solution "$solution" > "$solution_output"
 		if ! diff -u "$expected" "$solution_output"; then
 			echo FAIL
 			rv=$?
 			case "$rv" in
 				1)
 					exit 2
 					;;
 				*)
 					exit 1
 					;;
 			esac
 		else
 			echo ok
 		fi
 	done
 done
		`@ -1,200 +0,0 @@`
			`1028`
			`1987`
			`1938`
			`1136`
			`1503`
			`1456`
			`1107`
			`1535`
			`1946`
			`1986`
			`855`
			`1587`
			`1632`
			`1548`
			`1384`
			`1894`
			`1092`
			`1876`
			`1914`
			`1974`
			`1662`
			`1608`
			`2004`
			`1464`
			`1557`
			`1485`
			`1267`
			`1582`
			`1307`
			`1903`
			`1102`
			`1578`
			`1421`
			`1184`
			`1290`
			`1786`
			`1295`
			`1930`
			`1131`
			`1802`
			`1685`
			`1735`
			`1498`
			`1052`
			`1688`
			`990`
			`1805`
			`1768`
			`1922`
			`1781`
			`1897`
			`1545`
			`1591`
			`1393`
			`1186`
			`149`
			`1619`
			`1813`
			`1708`
			`1119`
			`1214`
			`1705`
			`1942`
			`1684`
			`1460`
			`1123`
			`1439`
			`1672`
			`1980`
			`1337`
			`1731`
			`1203`
			`1481`
			`2009`
			`1110`
			`1116`
			`1443`
			`1957`
			`1891`
			`1595`
			`1951`
			`1883`
			`1733`
			`1697`
			`1321`
			`1689`
			`1103`
			`1300`
			`1262`
			`1190`
			`1667`
			`1843`
			`1544`
			`1877`
			`1718`
			`1866`
			`1929`
			`1169`
			`1693`
			`1518`
			`1375`
			`1477`
			`1222`
			`1791`
			`1612`
			`1373`
			`1253`
			`1087`
			`1959`
			`1970`
			`1112`
			`1778`
			`1412`
			`1127`
			`1767`
			`1091`
			`1653`
			`1609`
			`1810`
			`1912`
			`1917`
			`935`
			`1499`
			`1878`
			`1452`
			`1935`
			`1937`
			`968`
			`1905`
			`1077`
			`1701`
			`1789`
			`1506`
			`1451`
			`1125`
			`1686`
			`1117`
			`1991`
			`1215`
			`1776`
			`1976`
			`846`
			`1923`
			`1945`
			`1888`
			`1193`
			`1146`
			`1583`
			`1315`
			`1372`
			`1963`
			`1491`
			`1777`
			`1799`
			`1363`
			`1579`
			`1367`
			`1863`
			`1983`
			`1679`
			`1944`
			`1654`
			`1953`
			`1297`
			`530`
			`1502`
			`1738`
			`1934`
			`1185`
			`1998`
			`1764`
			`1856`
			`1207`
			`1181`
			`1494`
			`1676`
			`1900`
			`1057`
			`339`
			`1994`
			`2006`
			`1536`
			`2007`
			`644`
			`1173`
			`1692`
			`1493`
			`1756`
			`1916`
			`1890`
			`1908`
			`1887`
			`1241`
			`1447`
			`1997`
			`1967`
			`1098`
			`1287`
			`1392`
			`1932`