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Old 2019-03-20, 06:42   #187
Romulan Interpreter
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Jun 2011

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Originally Posted by garambois View Post
In addition, there can be a multitude of C30s or C60s for a single OE sequence that "plays the yo-yo"
You always store the first. In fact, there are no merges "so high", all merges happen at very low digit count. The reason to store higher lists (people use to keep 80 and 100) is that the search is easier (less items in the list). Low-digits lists are huge. If two sequences "play yo-yo", there is still a "lowest point" where they merge, which is then (after raising) the "first" reach. It doesn't make sense to store all crosses. For example, you have two sequences that reach 10, 20, 30, 40 digits without merging, you will have stored one number for each, at 10, 20, 30, etc. If then both drop and merge, if at least one of them dropped below 7 digits, then the next 10-digits cross is already in the list, from the sequence starting with the last drop. If they drop no lower than 9 digits, then merge, and raise back (as one sequence) to10, 20, 30, 40, you will not detect this, as the new cross into the 10, etc, will not be recorded, because there is no record for sequences starting with 9 or more digits. But immediately when they cross to 50 digits, it will be detected (and recorded).
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