2022 day 3

2022/03/input

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2022/03/part1

@@ -0,0 +1,25 @@
+#!/usr/bin/env python
+
+VALS = {}
+
+for i in range(ord('a'), ord('z')+1):
+    VALS[chr(i)] = i - ord('a') + 1
+
+for i in range(ord('A'), ord('Z')+1):
+    VALS[chr(i)] = i - ord('A') + 27
+
+score = 0
+
+with open('input') as f:
+    for line in f:
+        line = line.rstrip()
+        half = len(line)//2
+        compA = line[0:half]
+        compB = line[half:len(line)]
+        common = set(compA) & set(compB)
+
+        score = score + VALS[common.pop()]
+
+print(score)
+
+

2022/03/part2

@@ -0,0 +1,26 @@
+#!/usr/bin/env python
+import itertools
+
+VALS = {}
+
+for i in range(ord('a'), ord('z')+1):
+    VALS[chr(i)] = i - ord('a') + 1
+
+for i in range(ord('A'), ord('Z')+1):
+    VALS[chr(i)] = i - ord('A') + 27
+
+score = 0
+
+with open('input') as f:
+    for elfA,elfB,elfC in itertools.zip_longest(*[f]*3):
+        elfA = elfA.rstrip()
+        elfB = elfB.rstrip()
+        elfC = elfC.rstrip()
+
+        common = set(elfA) & set(elfB) & set(elfC)
+
+        score = score + VALS[common.pop()]
+
+print(score)
+
+