Solve 2016/05

2016/05/solve.py

@@ -0,0 +1,54 @@
+import hashlib
+
+# PART 1
+
+def chars(start, amount):
+	n = 0
+	chars = []
+	while amount > 0:
+		text = (start + str(n)).encode("utf-8")
+		h = hashlib.md5(text).hexdigest()
+		if h[:5] == "00000":
+			print(h, "->", char)
+			char = h[5]
+			chars.append(char)
+			amount -= 1
+		n += 1
+	return "".join(chars)
+
+# PART 2
+
+def chars_2(start, amount):
+	n = 0
+	chars = [None]*amount
+	while amount > 0:
+		text = (start + str(n)).encode("utf-8")
+		h = hashlib.md5(text).hexdigest()
+		if h[:5] == "00000":
+			char = h[6]
+			pos = int(h[5], base=16)
+			if pos < len(chars):
+				if chars[pos] is None:
+					chars[pos] = char
+					pw = "".join("_" if x is None else x for x in chars)
+					print(h, "->", char, "in position", pos, "->", pw)
+					if None not in chars:
+						return "".join(chars)
+				else:
+					print(h, "->", chars[pos], "already in position", pos)
+			else:
+				print(h, "->", "invalid position", pos)
+		n += 1
+
+def main(hashstart):
+	print("Previously calculated")
+	print("Part 1: 4543c154")
+	print("Part 2: 1050cbbd")
+	print(f"Solutions")
+	pw = chars(hashstart, 8)
+	print(f"Part 1: {pw}")
+	pw_2 = chars_2(hashstart, 8)
+	print(f"Part 2: {pw_2}")
+
+if __name__ == "__main__":
+	main("ojvtpuvg")