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/math/longestIncreasingSubsequence.cpp | 76 ++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 test/math/longestIncreasingSubsequence.cpp (limited to 'test/math/longestIncreasingSubsequence.cpp') diff --git a/test/math/longestIncreasingSubsequence.cpp b/test/math/longestIncreasingSubsequence.cpp new file mode 100644 index 0000000..407dafe --- /dev/null +++ b/test/math/longestIncreasingSubsequence.cpp @@ -0,0 +1,76 @@ +#include "../util.h" +constexpr ll INF = LL::INF; +#include +#define lis unstrictLis +#define lower_bound upper_bound +#include +#undef lower_bound +#undef lis + +template +bool isLis(const vector& a, const vector& lis) { + for (int i = 1; i < sz(lis); i++) { + if (lis[i-1] >= lis[i]) return false; + if (a[lis[i-1]] > a[lis[i]]) return false; + if (STRICT && a[lis[i-1]] == a[lis[i]]) return false; + } + return true; +} + +template +vector naive(const vector& a) { + vector res; + for (ll i = 1; i < (1ll << sz(a)); i++) { + vector tmp; + for (ll j = 0; j < sz(a); j++) { + if (((i >> j) & 1) != 0) tmp.push_back(j); + } + if (sz(tmp) >= sz(res) && isLis(a, tmp)) res = tmp; + } + return res; +} + +void stress_test() { + ll queries = 0; + for (ll i = 0; i < 10'000; i++) { + int n = Random::integer(1, 12); + auto a = Random::integers(n, -10, 10); + auto expected = naive(a); + auto got = lis(a); + if (got != expected) cerr << "error: strict" << FAIL; + queries += n; + } + for (ll i = 0; i < 10'000; i++) { + int n = Random::integer(1, 12); + auto a = Random::integers(n, -10, 10); + auto expected = naive(a); + auto got = unstrictLis(a); + if (got != expected) cerr << "error: not strict" << FAIL; + queries += n; + } + cerr << "tested random queries: " << queries << endl; +} + +constexpr int N = 1'000'000; +void performance_test() { + timer t; + auto a = Random::integers(N, -10'000, 10'000); + auto b = Random::integers(N, -10'000, 10'000); + sort(all(b)); + auto c = Random::integers(N, -10'000, 10'000); + sort(all(c)); + reverse(all(c)); + hash_t hash = 0; + t.start(); + hash += lis(a).size(); + hash += lis(b).size(); + hash += lis(c).size(); + t.stop(); + 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