src/str/lyndon/lib.hpp
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|---|---|---|---|
| 1 | #pragma once | ||
| 2 | |||
| 3 | #include "../../util/alias/others/lib.hpp" | ||
| 4 | |||
| 5 | namespace tifa_libs { | ||
| 6 | |||
| 7 | 23 | CEXP vecu duval(strnv s) NE { | |
| 8 | 23 | cu32 n = (u32)s.size(); | |
| 9 | 46 | vecu res{0}; | |
| 10 |
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399 | while (res.back() != n) { |
| 11 | 353 | u32 l = 1; | |
| 12 |
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8686978 | flt_ (u32, i, res.back() + 1, n + 1) |
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8686978 | if (i == n || s[i] < s[i - l]) { |
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996477 | for (u32 j = res.back() + l; j < i + 1; j += l) res.push_back(j); |
| 15 | 353 | break; | |
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8686625 | } else if (s[i - l] < s[i]) l = i + 1 - res.back(); |
| 17 | } | ||
| 18 | 23 | return res; | |
| 19 | } | ||
| 20 | |||
| 21 | } // namespace tifa_libs | ||
| 22 |