first 13 stars

2/onestar.py

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+# The score for a single round is the score for the shape 
+# you selected (1 for Rock, 2 for Paper, and 3 for Scissors)
+# plus the score for the outcome of the round
+# (0 if you lost, 3 if the round was a draw, and 6 if you won).
+
+scores = {
+    "X": 1, #Rock
+    "Y": 2, #Paper
+    "Z": 3, #Scissors
+    "A": 1, #Rock
+    "B": 2, #Paper
+    "C": 3 #Scissors
+}
+
+score = 0
+with open("input.txt", "r") as f:
+    for line in f.readlines():
+        hands = line.strip("\n").split(" ")
+        theirs = scores[hands[0]]
+        ours = scores[hands[1]]
+        score += ours
+        if ours > theirs and not (ours == 3 and theirs == 1):
+            score += 6
+        if ours == theirs:
+            score += 3
+        if ours == 1 and theirs == 3:
+            score += 6
+
+print(score)

2/twostar.py

@@ -0,0 +1,31 @@
+# X means you need to lose, 
+# Y means you need to end the round in a draw, 
+# and Z means you need to win. Good luck!"
+
+scores = {
+    "A": 1, #Rock
+    "B": 2, #Paper
+    "C": 3 #Scissors
+}
+
+score = 0
+with open("input.txt", "r") as f:
+    for line in f.readlines():
+        strategy = line.strip("\n").split(" ")
+        theirs = scores[strategy[0]]
+        victory = strategy[1]
+        ours = 0
+        if victory == "X": # Lose
+            ours = theirs-1
+        elif victory == "Y": # Draw
+            ours = theirs
+            score += 3
+        elif victory == "Z": # Win
+            ours = theirs+1
+            score += 6
+        if ours == 0:
+            ours = 3
+        if ours > 3:
+            ours = 1
+        score += ours
+print(score)