feat: Redo of the AoC repo starting over with 2015 and keeping up with

2025 (completed day 2 so far)

15/1/main.py

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+'''Day 1 of 2015 AOC'''
+
+def process_input_string(input_string: str) -> int:
+    '''Take in an input string and give back the floor number based on the instructions.
+
+    Keyword Args:
+    input_string (str) - String of encoded instructions
+
+    Return:
+    int - Floor number
+    '''
+    curr_floor = 0
+
+    for char in input_string:
+        if char == '(':
+            curr_floor += 1
+        elif char == ')':
+            curr_floor -= 1
+
+    return curr_floor
+
+
+def find_the_basement(input_string: str) -> int:
+    '''Take in an input string of instructions and give back the position of the instruction entering the basement, or hitting floor "-1".
+
+    Keyword Args:
+    input_string (str) - String of encoded instructions
+
+    Return:
+    int - Position of instruction in the string
+    '''
+    curr_floor = 0
+
+    for index, char in enumerate(input_string):
+        if char == '(':
+            curr_floor += 1
+        elif char == ')':
+            curr_floor -= 1
+
+        if curr_floor == -1:
+            # Add one to give the 1s based position instead of the 0s based index
+            return index + 1
+
+
+def main():
+    '''Entrypoint'''
+    with open('input.txt', encoding='utf-8') as fh:
+        input_string = fh.readline()
+        output = process_input_string(input_string)
+
+        print(f'Part 1: {output}')
+
+        output = find_the_basement(input_string)
+
+        print(f'Part 2: {output}')
+
+
+if __name__ == "__main__":
+    main()

15/1/test_day1.py

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+import pytest
+
+from main import find_the_basement, process_input_string
+
+
+@pytest.mark.parametrize('test_input, expected',
+                         [
+                            ('(())', 0),
+                            ('()()', 0),
+                            ('(((', 3),
+                            ('(()(()(', 3),
+                            ('))(((((', 3),
+                            ('())', -1),
+                            ('))(', -1),
+                            (')))', -3),
+                            (')())())', -3)
+                         ])
+def test_instruction_examples(test_input, expected):
+    assert process_input_string(test_input) == expected
+
+
+@pytest.mark.parametrize('test_input, expected',
+                        [
+                            (')', 1),
+                            ('()())', 5)
+                        ])
+def test_basement_instructions(test_input, expected):
+    assert find_the_basement(test_input) == expected