From 8d11c6c8213f46f0fa19826917c255edd5d43cb1 Mon Sep 17 00:00:00 2001 From: mzuenni Date: Sun, 28 Jul 2024 22:54:40 +0200 Subject: Test (#4) * update * moved content in subdir * rename file * add test setup * add test setup * add github action * automaticly test all cpp files * timeout after 10s * setulimit and dont zero memory * test build pdf * install latexmk * update * update * ngerman * fonts * removed old code * add first test * added tests * test in sorted order * more tests * simplified test * more tests * fix suffix tree * fixes and improvements * done ust lst directly * fix swap * add links to pdf * fix constants * add primorial * add comment * various improvements * more tests * added missing stuf * more tests * fix tests * more tests * more tests * more tests * fix recursion? * test trie * more tests * only use python temporarily for listings * only use python temporarily for listings * more tests * fix longestCommonSubstring * more tests * more tests * made code more similiar * fix? * more tests * more tests * more tests * add ahoCorasick test + limit 4GB stack size * more tests * fix test * add additional test * more tests * more tests * fix? * better fix * fix virtual tree * more tests * more tests * recursive closest pair * more tests * decrease limit * new tests * more tests * fix name * more tests * add test * new test * more tests * more tests * more tests * more tests * new test and content * new code * new code * larger tests * fix and test * new test * new test * update pdf * remove comments * new test * more tests * more testcases * more tests * increased limit * more tests * more tests * more tests * new tests * more tests * shortened code * new test * add basic tests for bigint * more tests * removed old files * new test * ignore some files * more auto more ccw * fix test * more tests * fix * new tests * more tests * more tests * stronger test * actually verify delaunay... * more tests * fix header * more tests * run tests parallel? * test parralel? * add --missing * separate workflows * test * is the pdf checked? * separate workflows * fix workflow * more workflows --------- Co-authored-by: Yidi --- content/string/rollingHash.cpp | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 content/string/rollingHash.cpp (limited to 'content/string/rollingHash.cpp') diff --git a/content/string/rollingHash.cpp b/content/string/rollingHash.cpp new file mode 100644 index 0000000..6e914aa --- /dev/null +++ b/content/string/rollingHash.cpp @@ -0,0 +1,18 @@ +// M = 1.7e9 + 9, 1e18L + 9, 2.2e18L + 7 +struct Hash { + static constexpr ll M = 3e18L + 37; + static constexpr ll Q = 318LL << 53; // Random in [SIGMA+1, M) + vector pref = {0}, power = {1}; + + Hash(const string& s) { + for (auto c : s) { // c > 0 + pref.push_back((mul(pref.back(), Q) + c + M) % M); + power.push_back(mul(power.back(), Q)); + }} + + ll operator()(int l, int r) { + return (pref[r] - mul(power[r-l], pref[l]) + M) % M; + } + + static ll mul(__int128 a, ll b) {return a * b % M;} +}; -- cgit v1.2.3