Improve floor_sum #88
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Resubmission of this-PR one: 79 ms We may use the latter one? |
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Non-recursive one is not so fast. |
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Yeah, this change makes sense for me, thanks! |
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current ACL code: https://atcoder.jp/contests/practice2/submissions/18804905 (101 ms)
improved code (this PR): https://atcoder.jp/contests/practice2/submissions/18805092 (70 ms)
The number of operations (per function call) could be more reduced, but the performance does not seem better.
slower code: https://atcoder.jp/contests/practice2/submissions/18805259 (75 ms)
Reference: https://rsk0315.hatenablog.com/entry/2020/12/13/231307