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Diffstat (limited to 'src/10/part2')
| -rw-r--r-- | src/10/part2 | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/src/10/part2 b/src/10/part2 new file mode 100644 index 0000000..6f7e947 --- /dev/null +++ b/src/10/part2 @@ -0,0 +1,65 @@ +--- 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 [1m[37m8[0m. + +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 [1m[37m19208[0m +distinct arrangements. + +You glance back down at your bag and try to remember why you brought so many adapters; there must be +[1m[37mmore than a trillion[0m valid ways to arrange them! Surely, there must be an efficient way +to count the arrangements. + +[1m[37mWhat is the total number of distinct ways you can arrange the adapters to connect the +charging outlet to your device?[0m + + |
