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/longestCommonSubsequence.cpp | 55 ++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 test/string/longestCommonSubsequence.cpp (limited to 'test/string/longestCommonSubsequence.cpp') diff --git a/test/string/longestCommonSubsequence.cpp b/test/string/longestCommonSubsequence.cpp new file mode 100644 index 0000000..6d7a6c5 --- /dev/null +++ b/test/string/longestCommonSubsequence.cpp @@ -0,0 +1,55 @@ +#include "../util.h" +#include + +bool isSubstr(string_view s, string_view sub) { + int i = 0; + for (char c : s) { + if (i < sz(sub) && c == sub[i]) i++; + } + return i >= sz(sub); +} + +string naive(string_view s, string_view t) { + string res = ""; + for (ll i = 1; i < (1ll << sz(s)); i++) { + string tmp; + for (ll j = 0; j < sz(s); j++) { + if (((i >> j) & 1) != 0) tmp.push_back(s[j]); + } + if (sz(tmp) >= sz(res) && isSubstr(t, 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); + int m = Random::integer(1, 12); + auto s = Random::string(n, "abc"); + auto t = Random::string(m, "abc"); + auto got = lcss(s, t); + auto expected = naive(s, t); + if (got != expected) cerr << s << ", " << t << ", got: " << got << ", expected: " << expected << FAIL; + queries += n + m; + } + cerr << "tested random queries: " << queries << endl; +} + +constexpr int N = 2'000; +void performance_test() { + timer t; + auto a = Random::string(N, "a") + Random::string(N, "ab") + Random::string(N, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789$#"); + auto b = Random::string(N, "a") + Random::string(N, "ab") + Random::string(N, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789$#"); + t.start(); + auto res = lcss(a, b); + 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