2022 - Day 3 part 2

2022/3/3_2.py

@@ -0,0 +1,32 @@
+#!/usr/bin/env python
+# 2022 - Advent Of Code 3 - part2
+
+# file = 'input_example.txt'
+file = 'input.txt'
+
+prio = 0
+
+
+def find_common(b1, b2, b3):
+    common1 = set(b1).intersection(b2)
+    common2 = set(b1).intersection(b3)
+    common_all = common1.intersection(common2)
+    print(f"c1: {common1} c2: {common2} -> {common_all}")
+    return list(common_all)
+
+
+def convert_score(lnum):
+    num = ord(lnum[0])
+    if num > 90:  # lower case
+        return num - 96
+    return num - 64 + 26
+
+
+with open(file, encoding="utf-8") as f:
+    while line := f.readline():
+        bag1 = line
+        bag2 = f.readline().strip()
+        bag3 = f.readline().strip()
+        prio += convert_score(find_common(bag1, bag2, bag3))
+
+print(prio)