Day 2

day02-1.py

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+import re
+
+from helpers import DEBUG, debug, load_input
+
+def split_line(line, character):
+    return [group.strip() for group in line.split(character)]
+
+def main(red_max, blue_max, green_max):
+    lines = load_input(day=2)
+    games = []
+    for line in lines:
+        first_split = split_line(line, ":")
+        game_num = int(re.match(r"Game (\d+)", first_split[0])[1])
+        line_dict = {
+            "game": game_num,
+            "red": 0,
+            "green": 0,
+            "blue": 0
+        }
+        second_split = split_line(first_split[1], ";")
+        for group in second_split:
+            third_split = split_line(group, ",")
+            for subgroup in third_split:
+                matches = re.match(r"(\d+) ([a-z]+)", subgroup)
+                color = matches[2]
+                number = int(matches[1])
+                if number > line_dict[color]:
+                    line_dict[color] = number
+        games.append(line_dict)
+
+    matching_games = 0
+    for game in games:
+        if game["red"] <= red_max and game["green"] <= green_max and game["blue"] <= blue_max:
+            matching_games += game["game"]
+
+    print(matching_games)
+
+
+
+
+if __name__ == "__main__":
+    main(red_max=12, blue_max=14, green_max=13)

day02-2.py

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+import re
+
+from helpers import DEBUG, debug, load_input
+
+def split_line(line, character):
+    return [group.strip() for group in line.split(character)]
+
+def main(red_max, blue_max, green_max):
+    lines = load_input(day=2)
+    games = []
+    for line in lines:
+        first_split = split_line(line, ":")
+        game_num = int(re.match(r"Game (\d+)", first_split[0])[1])
+        line_dict = {
+            "game": game_num,
+            "red": 0,
+            "green": 0,
+            "blue": 0
+        }
+        second_split = split_line(first_split[1], ";")
+        for group in second_split:
+            third_split = split_line(group, ",")
+            for subgroup in third_split:
+                matches = re.match(r"(\d+) ([a-z]+)", subgroup)
+                color = matches[2]
+                number = int(matches[1])
+                if number > line_dict[color]:
+                    line_dict[color] = number
+        games.append(line_dict)
+
+    games_power = 0
+    for game in games:
+        games_power += (game["red"] * game["blue"] * game["green"])
+
+    print(games_power)
+
+
+
+
+if __name__ == "__main__":
+    main(red_max=12, blue_max=14, green_max=13)

helpers/__init__.py

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+DEBUG = False
+
+def debug(message, *args, **kwargs):
+    global DEBUG
+    if DEBUG:
+        print(message, *args, **kwargs)
+
+def load_input(day):
+    day = str(day) if day >= 10 else f"0{day}"
+    filename = f"day{day}.input"
+    with open(filename, "r") as file:
+        input_list = [line.strip() for line in file.readlines()]
+    return input_list