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 --- test/string/deBruijn.cpp | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 test/string/deBruijn.cpp (limited to 'test/string/deBruijn.cpp') diff --git a/test/string/deBruijn.cpp b/test/string/deBruijn.cpp new file mode 100644 index 0000000..6b3fea4 --- /dev/null +++ b/test/string/deBruijn.cpp @@ -0,0 +1,43 @@ +#include "../util.h" +#include +#include + +bool isDeBruijn(string s, int n, int k) { + ll expected = 1; + for (ll i = 0; i < n; i++) expected *= k; + if (expected != sz(s)) return false; + s += s; + set seen; + for (ll i = 0; 2*i < sz(s); i++) { + seen.insert(string_view(s).substr(i, n)); + } + return sz(seen) == expected; +} + +void stress_test() { + ll queries = 0; + for (ll i = 0; i < 1000; i++) { + int n = Random::integer(1, 9); + auto [l, r] = Random::pair('b', 'f'); + auto got = deBruijn(n, l, r); + if (!isDeBruijn(got, n, r - l + 1)) cerr << "error" << FAIL; + queries += sz(got); + } + cerr << "tested random queries: " << queries << endl; +} + +constexpr int N = 26; +void performance_test() { + timer t; + t.start(); + auto res = deBruijn(N, '0', '1'); + t.stop(); + hash_t hash = sz(res); + if (t.time > 500) cerr << "too slow: " << t.time << FAIL; + cerr << "tested performance: " << t.time << "ms (hash: " << hash << ")" << endl; +} + +int main() { + stress_test(); + performance_test(); +} -- cgit v1.2.3