Files
AdventOfCode/2020/solutions/day_06.py
2020-12-25 23:50:29 +01:00

75 lines
1.8 KiB
Python

"""AOC Day 6"""
import pathlib
import time
import collections
TEST_INPUT = """abc
a
b
c
ab
ac
a
a
a
a
b"""
def read_input(input_path: str) -> str:
"""take input file path and return a str with the file's content"""
with open(input_path, 'r') as input_file:
input_data = input_file.read()
return input_data
def extract(input_data: str) -> list:
"""take input data and return the appropriate data structure"""
groups = input_data.strip().split("\n\n")
yes_count = list()
for group in groups:
persons = group.split("\n")
yes_count.append((len(persons), collections.Counter(''.join(persons))))
return yes_count
def part1(entries: list) -> int:
"""part1 solver take a list of sets and return an int"""
return sum(len(group[1].keys()) for group in entries)
def part2(entries: list) -> int:
"""part2 solver take a list of sets and return an int"""
count = 0
for group in entries:
for key in group[1].keys():
if group[1][key] == group[0]:
count += 1
return count
def test_input_day_6():
"""pytest testing function"""
entries = extract(TEST_INPUT)
assert part1(entries) == 11
assert part2(entries) == 6
def test_bench_day_6(benchmark):
"""pytest-benchmark function"""
benchmark(main)
def main():
"""main function"""
input_path = str(pathlib.Path(__file__).resolve().parent.parent) + "/inputs/" + str(pathlib.Path(__file__).stem)
start_time = time.time()
input_data = read_input(input_path)
entries = extract(input_data)
print("Part 1: %d" % part1(entries))
print("Part 2: %d" % part2(entries))
end_time = time.time()
print("Execution time: %f" % (end_time-start_time))
if __name__ == "__main__":
main()