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README.md
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@ -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.

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2
data/day6.expected
View file

@ -1,2 +0,0 @@
6683
3122

2179
data/day6.input
View file

File diff suppressed because it is too large Load diff

3
day1/day1.py
View file

@ -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))

4
day2/day2.py
View file

@ -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))))

28
day2/vhdl/run.sh
View file

@ -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
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 analyze $GHDLFLAGS top_syn.vhd sim.vhd
ghdl elab-run $GHDLFLAGS sim -gSTEP="$step" --ieee-asserts=disable < "$INPUT"
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
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
ghdl analyze $GHDLFLAGS top_syn.vhd sim.vhd
ghdl elab-run $GHDLFLAGS sim -gSTEP="$step" -gFILENAME="../input.txt" --ieee-asserts=disable-at-0
done

6
day2/vhdl/sim.vhd
View file

@ -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);
readline(input, current_line);
exit lines_loop when endfile(file_handle);
readline(file_handle, current_line);
is_record <= '1';

5
day3/day3.py
View file

@ -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))

1
day4/day4.hs
View file

@ -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)

5
day4/day4.py
View file

@ -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))

52
test.sh
View file

@ -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