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README.md
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@ -12,5 +12,3 @@ https://adventofcode.com/2020/
| 4 | `**` | `**` | | | 4 | `**` | `**` | |
| 5 | | `**` | | | 5 | | `**` | |
| 6 | | `**` | | | 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)))) return product(next(filter(lambda xs: sum(xs) == 2020, itertools.permutations(nums, r=arity))))
if __name__ == '__main__': 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(2, nums))
print(find_summing(3, nums)) print(find_summing(3, nums))

4
day2/day2.py
View file

@ -1,6 +1,5 @@
#!/usr/bin/env python #!/usr/bin/env python
import re import re
import sys
from collections import Counter from collections import Counter
r = re.compile(r'(\d+)-(\d+) (.): (.*)') 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) return req_func(int(min_required), int(max_required), letter, password)
if __name__ == '__main__': 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): for func in (requirements_met_1, requirements_met_2):
print(len(list(filter(lambda line: do_line(func, line), lines)))) print(len(list(filter(lambda line: do_line(func, line), lines))))

30
day2/vhdl/run.sh
View file

@ -1,25 +1,21 @@
#!/usr/bin/bash #!/usr/bin/env sh
set -eu set -eu
INPUT=$(readlink --canonicalize-existing "$1")
MODE=${2:-}
GHDLFLAGS="--std=08 --workdir=workdir" GHDLFLAGS="--std=08 --workdir=workdir"
cd "$(dirname "${BASH_SOURCE[0]}")"
mkdir -p workdir 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 remove $GHDLFLAGS ghdl elab-run $GHDLFLAGS sim -gSTEP=1 -gFILENAME="../input.txt"
ghdl synth $GHDLFLAGS -gCOUNTER_WIDTH=12 -gSTEP="$step" parser.vhd verifier.vhd top.vhd -e top > top_syn.vhd 2>/dev/null ghdl elab-run $GHDLFLAGS sim -gSTEP=2 -gFILENAME="../input.txt"
ghdl analyze $GHDLFLAGS top_syn.vhd sim.vhd
ghdl elab-run $GHDLFLAGS sim -gSTEP="$step" --ieee-asserts=disable < "$INPUT" echo "Synthesized: "
done
else for step in 1 2; do
ghdl remove $GHDLFLAGS ghdl remove $GHDLFLAGS
ghdl analyze $GHDLFLAGS parser.vhd verifier.vhd top.vhd sim.vhd ghdl synth $GHDLFLAGS -gCOUNTER_WIDTH=12 -gSTEP="$step" parser.vhd verifier.vhd top.vhd -e top > top_syn.vhd
ghdl elab-run $GHDLFLAGS sim -gSTEP=1 < "$INPUT" ghdl analyze $GHDLFLAGS top_syn.vhd sim.vhd
ghdl elab-run $GHDLFLAGS sim -gSTEP=2 < "$INPUT" ghdl elab-run $GHDLFLAGS sim -gSTEP="$step" -gFILENAME="../input.txt" --ieee-asserts=disable-at-0
fi done

6
day2/vhdl/sim.vhd
View file

@ -6,12 +6,14 @@ use std.textio.all;
entity sim is entity sim is
generic ( generic (
FILENAME : string := "input.txt";
COUNTER_WIDTH : positive := 12; COUNTER_WIDTH : positive := 12;
STEP : natural range 1 to 2 STEP : natural range 1 to 2
); );
end entity; end entity;
architecture a of sim is architecture a of sim is
file file_handle : text open read_mode is FILENAME;
signal char_in : character; signal char_in : character;
signal clk, reset, is_record : std_logic; signal clk, reset, is_record : std_logic;
signal num_verified : unsigned(COUNTER_WIDTH-1 downto 0); signal num_verified : unsigned(COUNTER_WIDTH-1 downto 0);
@ -47,8 +49,8 @@ begin
cycle_clock; cycle_clock;
lines_loop: loop 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'; is_record <= '1';

5
day3/day3.py
View file

@ -1,7 +1,5 @@
#!/usr/bin/env python #!/usr/bin/env python
import sys
def count_trees(right, down, lines): def count_trees(right, down, lines):
n = 0 n = 0
for i, line in enumerate(lines[::down]): for i, line in enumerate(lines[::down]):
@ -11,7 +9,8 @@ def count_trees(right, down, lines):
return n return n
if __name__ == '__main__': 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)) print(count_trees(3, 1, lines))

1
day4/day4.hs
View file

@ -3,7 +3,6 @@ import AoC
import Control.Applicative ((<|>)) import Control.Applicative ((<|>))
import Control.Monad (guard, mfilter) import Control.Monad (guard, mfilter)
import Data.Char (isDigit) import Data.Char (isDigit)
import Data.List (intercalate)
import Data.Maybe (mapMaybe) import Data.Maybe (mapMaybe)
import Text.ParserCombinators.ReadP import Text.ParserCombinators.ReadP
import Text.Read (readMaybe) import Text.Read (readMaybe)

5
day4/day4.py
View file

@ -1,7 +1,5 @@
#!/usr/bin/env python #!/usr/bin/env python
import sys
def within(a, b, x): def within(a, b, x):
return a <= x <= b return a <= x <= b
@ -50,7 +48,8 @@ def split_on(f, it):
yield current_part yield current_part
if __name__ == '__main__': 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)) 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