Restructure repo and update solutions to zig 0.10.1HEADmaster

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+--- Part Two ---
+
+To completely determine whether you have enough adapters, you'll need to figure out how many
+different ways they can be arranged. Every arrangement needs to connect the charging outlet to your
+device. The previous rules about when adapters can successfully connect still apply.
+
+The first example above (the one that starts with 16, 10, 15) supports the following arrangements:
+
+(0), 1, 4, 5, 6, 7, 10, 11, 12, 15, 16, 19, (22)
+(0), 1, 4, 5, 6, 7, 10, 12, 15, 16, 19, (22)
+(0), 1, 4, 5, 7, 10, 11, 12, 15, 16, 19, (22)
+(0), 1, 4, 5, 7, 10, 12, 15, 16, 19, (22)
+(0), 1, 4, 6, 7, 10, 11, 12, 15, 16, 19, (22)
+(0), 1, 4, 6, 7, 10, 12, 15, 16, 19, (22)
+(0), 1, 4, 7, 10, 11, 12, 15, 16, 19, (22)
+(0), 1, 4, 7, 10, 12, 15, 16, 19, (22)
+
+(The charging outlet and your device's built-in adapter are shown in parentheses.) Given the
+adapters from the first example, the total number of arrangements that connect the charging outlet
+to your device is 8.
+
+The second example above (the one that starts with 28, 33, 18) has many arrangements. Here are a
+few:
+
+(0), 1, 2, 3, 4, 7, 8, 9, 10, 11, 14, 17, 18, 19, 20, 23, 24, 25, 28, 31,
+32, 33, 34, 35, 38, 39, 42, 45, 46, 47, 48, 49, (52)
+
+(0), 1, 2, 3, 4, 7, 8, 9, 10, 11, 14, 17, 18, 19, 20, 23, 24, 25, 28, 31,
+32, 33, 34, 35, 38, 39, 42, 45, 46, 47, 49, (52)
+
+(0), 1, 2, 3, 4, 7, 8, 9, 10, 11, 14, 17, 18, 19, 20, 23, 24, 25, 28, 31,
+32, 33, 34, 35, 38, 39, 42, 45, 46, 48, 49, (52)
+
+(0), 1, 2, 3, 4, 7, 8, 9, 10, 11, 14, 17, 18, 19, 20, 23, 24, 25, 28, 31,
+32, 33, 34, 35, 38, 39, 42, 45, 46, 49, (52)
+
+(0), 1, 2, 3, 4, 7, 8, 9, 10, 11, 14, 17, 18, 19, 20, 23, 24, 25, 28, 31,
+32, 33, 34, 35, 38, 39, 42, 45, 47, 48, 49, (52)
+
+(0), 3, 4, 7, 10, 11, 14, 17, 20, 23, 25, 28, 31, 34, 35, 38, 39, 42, 45,
+46, 48, 49, (52)
+
+(0), 3, 4, 7, 10, 11, 14, 17, 20, 23, 25, 28, 31, 34, 35, 38, 39, 42, 45,
+46, 49, (52)
+
+(0), 3, 4, 7, 10, 11, 14, 17, 20, 23, 25, 28, 31, 34, 35, 38, 39, 42, 45,
+47, 48, 49, (52)
+
+(0), 3, 4, 7, 10, 11, 14, 17, 20, 23, 25, 28, 31, 34, 35, 38, 39, 42, 45,
+47, 49, (52)
+
+(0), 3, 4, 7, 10, 11, 14, 17, 20, 23, 25, 28, 31, 34, 35, 38, 39, 42, 45,
+48, 49, (52)
+
+In total, this set of adapters can connect the charging outlet to your device in 19208
+distinct arrangements.
+
+You glance back down at your bag and try to remember why you brought so many adapters; there must be
+more than a trillion valid ways to arrange them! Surely, there must be an efficient way
+to count the arrangements.
+
+What is the total number of distinct ways you can arrange the adapters to connect the
+charging outlet to your device?
+
+