1-4

03/03.py

@@ -0,0 +1,14 @@
+with open("input.py") as file:
+    l = file.read().strip().split('\n')
+from string import ascii_letters
+d = {l:i for i, l in enumerate(ascii_letters, 1)}
+def f(x):
+    l = len(x)//2
+    a = set(x[:l])
+    b = set(x[l:])
+    return list(a.intersection(b))[0]
+print(sum(d[x] for x in map(f, l)))
+def f2(x):
+    a, b, c = x
+    return list(set(a).intersection(set(b)).intersection(set(c)))[0]
+print(sum(d[x] for x in map(f2, zip(l[::3],l[1::3],l[2::3]))))