Day 2

2020/day2.py

@@ -0,0 +1,27 @@
+def main():
+    with open("day2.txt", "rt") as f:
+        lines = [line.rstrip() for line in f.readlines()]
+    # Part 1
+    valid = 0
+    for line in lines:
+        count, letter, password = line.split()
+        min_n, max_n = count.split("-")
+        letter = letter.rstrip(":")
+        if int(min_n) <= password.count(letter) <= int(max_n):
+            valid += 1
+    print("Valids:", valid)
+    # Part 2
+    valid = 0
+    for line in lines:
+        count, letter, password = line.split()
+        ofs_a, ofs_b = count.split("-")
+        letter = letter.rstrip(":")
+        a = password[int(ofs_a) - 1]
+        b = password[int(ofs_b) - 1]
+        if (a == letter or b == letter) and not (a == b == letter):
+            valid += 1
+    print("Valids:", valid)
+
+
+if __name__ == "__main__":
+    main()

2020/new.py

@@ -0,0 +1,19 @@
+#!/usr/bin/env python3
+
+import os
+from datetime import date
+
+TEMPLATE = """
+def main():
+    with open("{}", "rt") as f:
+        lines = [line.rstrip() for line in f.readlines()]
+
+
+if __name__ == "__main__":
+    main()
+"""
+
+day = date.today().day
+with open(f"day{day}.py", "wt") as f:
+    f.write(TEMPLATE.format(f"day{day}.txt"))
+os.system(f"python ../fetch.py {day}")

2020/skel.py.txt

@@ -1,7 +0,0 @@
-def main():
-    with open("", "rt") as f:
-        lines = [line.rstrip() for line in f.readlines()]
-
-
-if __name__ == "__main__":
-    main()