Added part b of the problem 3

2022/q03b.py

@@ -0,0 +1,16 @@
+from aocd.models import Puzzle
+from string import ascii_letters
+
+puzzle = Puzzle(year=2022, day=3)
+priorites = { c: i + 1 for i, c in enumerate(ascii_letters) }
+
+sum_prior = 0
+lines = puzzle.input_data.splitlines()
+for i in range(0, len(lines), 3):
+    s1 = set(lines[i])
+    s2 = set(lines[i + 1])
+    s3 = set(lines[i + 2])
+    s = s1 & s2 & s3
+    sum_prior += sum(priorites[c] for c in s)
+
+puzzle.answer_b = sum_prior