2015 day 4, 5, 6, 7.

src/holt59/aoc/2015/day4.py

@@ -0,0 +1,16 @@
+import hashlib
+import itertools
+import sys
+
+line = sys.stdin.read().strip()
+
+it = iter(itertools.count(1))
+answer_1 = next(
+    i for i in it if hashlib.md5(f"{line}{i}".encode()).hexdigest().startswith("00000")
+)
+print(f"answer 1 is {answer_1}")
+
+answer_2 = next(
+    i for i in it if hashlib.md5(f"{line}{i}".encode()).hexdigest().startswith("000000")
+)
+print(f"answer 2 is {answer_2}")