Day 03 - part 1 (will refactor)

inputs/day03-example.txt

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+00100
+11110
+10110
+10111
+10101
+01111
+00111
+11100
+10000
+11001
+00010
+01010

puzzles/day03.py

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+"""
+Advent of Code 2021 - Day 03
+
+Run with:
+    python puzzles/day03.py inputs/day03.txt
+"""
+
+import pathlib
+import sys
+from typing import List, Tuple
+
+from collections import defaultdict
+
+def part1(inputs: List[int]) -> int:
+    num_1 = defaultdict(int)
+    for line in inputs:
+        for index, value in enumerate(line):
+            num_1[index] += int(value)
+
+    total = len(inputs)
+    gamma = epsilon = ""
+    for value in num_1.values():
+        if value > (total/2):
+            gamma += "1"
+            epsilon += "0"
+        else:
+            gamma += "0"
+            epsilon += "1"
+
+    gamma = int(gamma, 2)
+    epsilon = int(epsilon, 2)
+    power = gamma * epsilon
+    return power
+
+
+def part2(inputs: List[int]) -> int:
+    return False
+
+
+def parse(inputs: str) -> List[int]:
+    """Parse the input string"""
+    return [line for line in inputs.split()]
+
+
+def solve(path: str) -> Tuple[int, int]:
+    """Solve the puzzle"""
+    puzzle_input = parse(pathlib.Path(path).read_text().strip())
+    part1_result = part1(puzzle_input)
+    part2_result = part2(puzzle_input)
+
+    return part1_result, part2_result
+
+
+def main() -> None:
+    for path in sys.argv[1:]:
+        print(f"Input File: {path}")
+
+        part1_result, part2_result = solve(path)
+
+        print(f"Part 1 Result: {part1_result}")
+        print(f"Part 2 Result: {part2_result}")
+
+
+if __name__ == "__main__":
+    main()

puzzles/test_day03.py

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+"""
+Remove the 'Not implemented' marks when ready to run the test
+"""
+import pathlib
+import pytest
+import day03 as aoc
+
+INPUTS_DIR = f"{pathlib.Path(__file__).parent.parent}/inputs"
+
+@pytest.fixture
+def example_data():
+    input_path = f"{INPUTS_DIR}/day03-example.txt"
+    return aoc.parse(pathlib.Path(input_path).read_text().strip())
+
+
+@pytest.fixture
+def day03_data():
+    input_path = f"{INPUTS_DIR}/day03.txt"
+    return aoc.parse(pathlib.Path(input_path).read_text().strip())
+
+
+def test_example1(example_data):
+    assert aoc.part1(example_data) == 198
+
+
+@pytest.mark.skip(reason="Not implemented")
+def test_example2(example_data):
+    assert aoc.part2(example_data) == ...
+
+
+@pytest.mark.skip(reason="Not implemented")
+def test_part1(day02_data):
+    assert aoc.part1(day02_data) == ...
+
+
+@pytest.mark.skip(reason="Not implemented")
+def test_part2(day02_data):
+    assert aoc.part2(day02_data) == ...