73 lines
1.9 KiB
Python
Executable file
73 lines
1.9 KiB
Python
Executable file
#!/usr/bin/env python3
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from logging import debug, DEBUG, basicConfig
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from sys import argv
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def parse_input(input_filepath: str) -> list[int]:
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rotations_list: list[int] = []
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with open(file=input_filepath, mode="r") as input_file:
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input_data: list[str] = input_file.readlines()
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debug(f"\n\nRAW INPUT: {input_data}\n\n")
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for line in input_data:
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rotation = line[0]
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amount = int(line[1:])
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if rotation == "L":
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rotations_list.append(0 - amount)
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continue
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rotations_list.append(amount)
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return rotations_list
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def simulate_rotations(rotations_list: list[int]) -> int:
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ending_positions = []
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current_position = 50
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zero_count = 0
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full_rotations = 0
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debug(f"\n\nROTATIONS LIST: {rotations_list}\n\n")
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for rotation in rotations_list:
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previous_position = current_position
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current_position += rotation - (int(rotation / 100) * 100)
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full_rotations += int(abs(rotation) / 100)
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if (current_position < 0 and previous_position != 0) or (
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current_position > 99 and current_position != 100
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):
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full_rotations += 1
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if current_position < 0:
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current_position += 100
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elif current_position > 99:
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current_position -= 100
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if current_position == 0:
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zero_count += 1
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ending_positions.append(current_position)
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debug(f"\n\nENDING POSITIONS: {ending_positions}\n\n")
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print(f"Simulated ending positions at zero: {zero_count}")
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return full_rotations + zero_count
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def main() -> None:
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input_filepath = "input/rotations.txt"
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rotations_list = parse_input(input_filepath)
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password = simulate_rotations(rotations_list)
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print(f"The password is: {password}")
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return
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if __name__ == "__main__":
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if "-d" in argv or "--debug" in argv:
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basicConfig(filename="debug.log", level=DEBUG)
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main()
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exit(0)
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