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/math/primitiveRoot.cpp | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 content/math/primitiveRoot.cpp (limited to 'content/math/primitiveRoot.cpp') diff --git a/content/math/primitiveRoot.cpp b/content/math/primitiveRoot.cpp new file mode 100644 index 0000000..39a0f64 --- /dev/null +++ b/content/math/primitiveRoot.cpp @@ -0,0 +1,23 @@ +bool isPrimitive(ll g, ll n, ll phi, map& phiFacts) { + if (g == 1) return n == 2; + if (gcd(g, n) > 1) return false; + for (auto [f, _] : phiFacts) + if (powMod(g, phi / f, n) == 1) return false; + return true; +} + +bool isPrimitive(ll g, ll n) { + ll phin = phi(n); //isPrime(n) => phi(n) = n - 1 + map phiFacts; + factor(phin, phiFacts); + return isPrimitive(g, n, phin, phiFacts); +} + +ll findPrimitive(ll n) { //test auf existens geht schneller + ll phin = phi(n); //isPrime(n) => phi(n) = n - 1 + map phiFacts; + factor(phin, phiFacts); + for (ll res = 1; res < n; res++) // oder zufällige Reihenfolge + if (isPrimitive(res, n, phin, phiFacts)) return res; + return -1; +} -- cgit v1.2.3