Add day 2 solution

python/2023/README.org

@@ -10,3 +10,14 @@
 *** Answers
 54573
 54591
+** Day 2
+
+#+begin_src shell
+  source ~/virtualenvs/aoc-2023/bin/activate
+  cd ~/git/advent-of-code/python/2023
+  python src/andy_aoc_2023/day2.py src/andy_aoc_2023/day2_big
+#+end_src
+
+*** Answers
+2600
+86036

python/2023/src/andy_aoc_2023/day2.py

@@ -0,0 +1,87 @@
+from functools import reduce
+from operator import mul as multiply
+from pprint import pprint
+import sys
+
+
+def parse_raw_input(lines):
+    input_lines = [
+        line.strip().split("; ")
+        for line in lines
+    ]
+
+    line_map = {}
+
+    for line in input_lines:
+        game_id, first_game  = line[0].split(": ")
+        int_id = int(game_id.split(" ")[-1])
+        line_map[int_id] = [first_game] + line[1:]
+
+    return line_map
+
+
+def input_to_game_lists(input_lines):
+    games = {
+        id:  [
+            {pieces[1]: pieces[0]}
+            for game in line
+            for color in game.split(", ")
+            if (pieces := color.split(" "))
+        ]
+        for id, line in input_lines.items()
+
+    }
+
+    summed_games = {}
+    for id, line in games.items():
+        state = {"red": [], "blue": [], "green": []}
+        for game in line:
+            key = list(game.keys())[0]
+            value = game[key]
+            state[key].append(int(value))
+        summed_games[id] = state
+
+    return summed_games
+
+
+def part1(input_lines):
+    summed_games = input_to_game_lists(input_lines)
+    filtered_games = {}
+
+    for id, game in summed_games.items():
+        if (
+                all(x <= 12 for x in game["red"])
+                and all(x <= 13 for x in game["green"])
+                and all(x <= 14 for x in game["blue"])
+        ):
+            filtered_games[id] = game
+
+    print(sum(id for id in filtered_games))
+
+
+def part2(input_lines):
+    summed_games = input_to_game_lists(input_lines)
+
+    maxed_games = {
+        id : {
+            k : max(v)
+            for k, v in game.items()
+        }
+        for id, game in summed_games.items()
+    }
+
+    powers = {
+        id: reduce(multiply, game.values())
+        for id, game in maxed_games.items()
+    }
+
+    pprint(sum(powers.values()))
+
+
+input_file = sys.argv[1]
+
+with open(input_file) as infile:
+    input_lines = parse_raw_input(infile.readlines())
+
+part1(input_lines)
+part2(input_lines)