Add code for 2020 day 6.

day_6/part_1.py

@@ -0,0 +1,16 @@
+with open("data") as f:
+	plane = f.read()
+
+
+plane = plane.split("\n\n")
+
+count = 0
+for group in plane:
+	group_answers = []
+	for person in group.split("\n"):
+		for q in person:
+			if q not in group_answers:
+				group_answers.append(q)
+	count += len(group_answers)
+
+print(count)