2022 day 2

2022/02/part1

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+#!/usr/bin/env python
+
+# lose: 0
+# draw: 3
+# win: 6
+
+outcomes = {
+    'A': { # rock: 1
+        'X': 1 + 3, # rock
+        'Y': 2 + 6, # paper
+        'Z': 3 + 0  # scissors
+    },
+    'B': { # paper: 2
+        'X': 1 + 0, # rock
+        'Y': 2 + 3, # paper
+        'Z': 3 + 6  # scissors
+    },
+    'C': { # scissors: 3
+        'X': 1 + 6, # rock
+        'Y': 2 + 0, # paper
+        'Z': 3 + 3  # scissors
+    }
+}
+
+score = 0
+
+with open('input') as f:
+    for line in f:
+        moves = line.rstrip().split(" ")
+        score = score + outcomes[moves[0]][moves[1]]
+
+print(score)
+

2022/02/part2

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+#!/usr/bin/env python
+
+# lose: 0
+# draw: 3
+# win: 6
+
+# x: need to lose
+# y: need to draw
+# z: need to win
+
+ROCK     = 'A'
+PAPER    = 'B'
+SCISSORS = 'C'
+
+LOSE = 'X'
+DRAW = 'Y'
+WIN  = 'Z'
+
+outcomes = {
+    ROCK: { # rock: 1
+        ROCK: 1 + 3, # rock
+        PAPER: 2 + 6, # paper
+        SCISSORS: 3 + 0  # scissors
+    },
+    PAPER: { # paper: 2
+        ROCK: 1 + 0, # rock
+        PAPER: 2 + 3, # paper
+        SCISSORS: 3 + 6  # scissors
+    },
+    SCISSORS: { # scissors: 3
+        ROCK: 1 + 6, # rock
+        PAPER: 2 + 0, # paper
+        SCISSORS: 3 + 3  # scissors
+    }
+}
+
+strategies = {
+    ROCK: {
+        LOSE: SCISSORS,
+        DRAW: ROCK,
+        WIN: PAPER
+    },
+    PAPER: {
+        LOSE: ROCK,
+        DRAW: PAPER,
+        WIN: SCISSORS
+    },
+    SCISSORS: {
+        LOSE: PAPER,
+        DRAW: SCISSORS,
+        WIN: ROCK
+    }
+}
+
+score = 0
+
+with open('input') as f:
+    for line in f:
+        parts = line.rstrip().split(" ")
+        
+        oppo_move = parts[0]
+        our_move = strategies[oppo_move][parts[1]]
+        score = score + outcomes[oppo_move][our_move]
+
+print(score)
+