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/graph/euler.cpp | 87 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 test/graph/euler.cpp (limited to 'test/graph/euler.cpp') diff --git a/test/graph/euler.cpp b/test/graph/euler.cpp new file mode 100644 index 0000000..6666040 --- /dev/null +++ b/test/graph/euler.cpp @@ -0,0 +1,87 @@ +#include "../util.h" +struct Euler { + Euler(int n) : idx(n), validIdx(n) {} +#include +}; + +Euler eulerGraph(int n, int m) { + Euler res(n); + + Graph g(n); + g.tree(); + g.forEdges([&](int a, int b) { + res.addEdge(a, b); + }); + + for (int i = n-1; i < m; i++) { + int a = Random::integer(0, n); + int b = Random::integer(0, n); + res.addEdge(a, b); + } + int last = -1; + for (int i = 0; i < n; i++) { + if (sz(res.idx[i]) % 2 != 0) { + if (last >= 0) { + res.addEdge(last, i); + last = -1; + } else { + last = i; + } + } + } + if (last >= 0) cerr << "FAIL" << FAIL; + + return res; +} + +void stress_test() { + ll queries = 0; + for (int tries = 0; tries < 200'000; tries++) { + int n = Random::integer(1, 30); + int m = Random::integer(n-1, 200); + + auto g = eulerGraph(n, m); + + vector> expected(n); + for (int i = 0; i < n; i++) { + for (int j : g.idx[i]) { + expected[i].push_back(g.to[j]); + } + sort(all(expected[i])); + } + + g.euler(0); + vector> got(n); + if (g.cycle.front() != g.cycle.back()) cerr << "error: not cyclic" << FAIL; + for (int i = 1; i < sz(g.cycle); i++) { + int a = g.cycle[i-1]; + int b = g.cycle[i]; + got[a].push_back(b); + got[b].push_back(a); + } + for (auto& v : got) sort(all(v)); + + if (got != expected) cerr << "error" << FAIL; + queries += n; + } + cerr << "tested random queries: " << queries << endl; +} + +constexpr int N = 100'000; +constexpr int M = 1'000'000; +void performance_test() { + timer t; + auto g = eulerGraph(N, M); + t.start(); + g.euler(0); + t.stop(); + hash_t hash = 0; + for (int x : g.cycle) hash += x; + 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