Day 2

day2-1.py

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+# https://adventofcode.com/2022/day/2
+
+MOVE_SCORES = {
+    "A": 1,
+    "B": 2,
+    "C": 3,
+    "X": 1,
+    "Y": 2,
+    "Z": 3
+}
+
+MOVE_BEATS = {
+    "X": "C",
+    "Y": "A",
+    "Z": "B"
+}
+
+MOVE_EQUALS = {
+    "X": "A",
+    "Y": "B",
+    "Z": "C"
+}
+
+def main():
+    with open("input2.txt", "r") as file:
+        moves = [line.strip() for line in file.readlines()]
+
+    # moves = [(x, y) for line in inlines for x, y in line.split(" ")]
+
+    scores = []
+    for move in moves:
+        (theirs, mine) = move.split(" ")
+        cur_score = MOVE_SCORES[mine]
+        if MOVE_BEATS[mine] == theirs:
+            cur_score += 6
+        elif MOVE_EQUALS[mine] == theirs:
+            cur_score += 3
+        scores.append(cur_score)
+
+    print(sum(scores))
+
+if __name__ == "__main__":
+    main()

day2-2.py

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+# https://adventofcode.com/2022/day/2
+
+MOVE_SCORES = {
+    "A": 1,
+    "B": 2,
+    "C": 3,
+    "X": 0,
+    "Y": 3,
+    "Z": 6
+}
+
+MOVE_BEATS = {
+    "A": "C",
+    "B": "A",
+    "C": "B"
+}
+
+MOVE_LOSES = {
+    "A": "B",
+    "B": "C",
+    "C": "A"
+}
+
+def main():
+    with open("input2.txt", "r") as file:
+        moves = [line.strip() for line in file.readlines()]
+
+    # moves = [(x, y) for line in inlines for x, y in line.split(" ")]
+
+    scores = []
+    for move in moves:
+        (theirs, mine) = move.split(" ")
+        cur_score = MOVE_SCORES[mine]
+
+        if mine == "X":
+            # Have to lose.
+            # Add the score of the move that their move beats.
+            cur_score += MOVE_SCORES[MOVE_BEATS[theirs]]
+        elif mine == "Y":
+            # Have to tie.
+            # Add the score of the move that they made.
+            cur_score += MOVE_SCORES[theirs]
+        elif mine == "Z":
+            # Have to win.
+            # Add the score of the move that theirs loses to.
+            cur_score += MOVE_SCORES[MOVE_LOSES[theirs]]
+            
+        scores.append(cur_score)
+
+    print(sum(scores))
+
+if __name__ == "__main__":
+    main()