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Freecell Solver - Evolution of a C Program→
Evolution of the States' Collection→
Binary-Search-Based Merge to Add the Sort Margin

- Instead of qsorting the sort margin in, keep it sorted and then use a binary-search based merge to merge it with the main array.
- The reason I used a binary search based merge, instead of a linear merge, is because I reasoned that the main array would become much larger than the margin (which has a constant size), and so this would result in a lot of comparisons.
- O(log(n)) lookup, O(n) insertion, and O(n
^{ 2 }) accumulative complexity. - Noticeably faster than qsorting.

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Written by Shlomi Fish