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/ahoCorasick.cpp | 76 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 test/string/ahoCorasick.cpp (limited to 'test/string/ahoCorasick.cpp') diff --git a/test/string/ahoCorasick.cpp b/test/string/ahoCorasick.cpp new file mode 100644 index 0000000..c3361d6 --- /dev/null +++ b/test/string/ahoCorasick.cpp @@ -0,0 +1,76 @@ +#include "../util.h" +#include + +vector naive(string s, vector patterns) { + vector ans(patterns.size()); + for (int k = 0; k < (int)patterns.size(); k++) { + string pattern = patterns[k]; + for (int i = 0; i + pattern.size() <= s.size(); i++) { + if (s.substr(i, pattern.size()) == pattern) ans[k]++; + } + } + return ans; +} + +vector normal(string s, vector patterns) { + AhoCorasick aho; + vector ind(patterns.size()); + for (int i = 0; i < (int)patterns.size(); i++) { + ind[i] = aho.addString(patterns[i]); + } + aho.buildGraph(); + + int v = 0; + for (char c : s) v = aho.go(v, c - OFFSET), aho.dp[v]++; + aho.dfs(); + vector ans(patterns.size()); + for (int i = 0; i < (int)patterns.size(); i++) { + ans[i] = aho.dp[ind[i]]; + } + return ans; +} + +void stress_test() { + ll queries = 0; + for (int i = 0; i < 100; i++) { + int n = Random::integer(1, 100); + string s = Random::string(n, "abc"); + int m = Random::integer(1, 100); + vector patterns(m); + for (string& e : patterns) { + int k = Random::integer(1, 100); + e = Random::string(k, "abc"); + } + + auto got = normal(s, patterns); + auto expected = naive(s, patterns); + if (got != expected) cerr << "Wrong Answer" << FAIL; + queries++; + } + cerr << "Tested random queries: " << queries << endl; +} + +constexpr int N = 1'000'000; +void performance_test() { + timer t; + string s = string(N, 'a') + Random::string(N, "ab"); + vector patterns = {"a"}; + for (int sm = 1; sm < N; sm += patterns.back().size()) { + patterns.emplace_back(patterns.back().size()+1, 'a'); + } + for (int i = 0; i < 100; i++) { + patterns.emplace_back(Random::string(N/100, "ab")); + } + + t.start(); + hash_t hash = normal(s, patterns)[0]; + t.stop(); + + if (t.time > 500) cerr << "Too slow: " << t.time << FAIL; + cerr << "Tested performance: " << t.time << "ms (hash: hash " << hash << ")" << endl; +} + +int main() { + stress_test(); + performance_test(); +} -- cgit v1.2.3