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/other/knuth.cpp | 103 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 103 insertions(+) create mode 100644 test/other/knuth.cpp (limited to 'test/other/knuth.cpp') diff --git a/test/other/knuth.cpp b/test/other/knuth.cpp new file mode 100644 index 0000000..d469ceb --- /dev/null +++ b/test/other/knuth.cpp @@ -0,0 +1,103 @@ +#include "../util.h" +constexpr ll inf = LL::INF; +#include + +vector> gen(int n) { + vector> res(n, vector(n)); + ll mi = 0; + for (ll a = n-1; a >= 0; a--) { + for (ll c = n-1; c >= a; c--) { + for (ll b = a; b <= c; b++) { + for (ll d = c; d < n; d++) { + res[a][c] = min(res[a][c], res[a][d] + res[b][c] - res[b][d]); + } + } + res[a][c] -= Random::integer(0, 1000); + mi = min(mi, res[a][c]); + } + } + for (auto& v : res) for (auto& x : v) x -= mi; + + for (ll a = 0; a < n; a++) { + for (ll b = a; b < n; b++) { + for (ll c = b; c < n; c++) { + for (ll d = c; d < n; d++) { + if (res[a][d] < 0 || res[a][d] + res[b][c] < res[a][c] + res[b][d]) { + cerr << "invalid C array!" << FAIL; + } + } + } + } + } + return res; +} + +vector> genQuick(int n) { + vector> res(n, vector(n)); + for (ll a = n-1; a >= 0; a--) { + for (ll c = n-1; c >= a; c--) { + res[a][c] = (c-a) * (c - a) + Random::integer(0, 2); + } + } + return res; +} + +/*ll naive(int n, int m, const vector>& C) { + vector> state(m+1, vector(n+1, inf)); + state[0][0] = 0; + for (int i = 1; i <= m; i++) { + for (int j = 1; j <= n; j++) { + for (int k = 1; k <= j; k++) { + state[i][j] = min(state[i][j], state[i-1][k-1] + C[k-1][j-1]); + } + } + } + return state[m][n]; +}*/ + +vector naive(int n, const vector>& C) { + vector> state(n+1, vector(n+1, inf)); + state[0][0] = 0; + vector res(n+1, inf); + for (int i = 1; i <= n; i++) { + for (int j = 1; j <= n; j++) { + for (int k = 1; k <= j; k++) { + state[i][j] = min(state[i][j], state[i-1][k-1] + C[k-1][j-1]); + } + } + res[i] = state[i][n]; + } + return res; +} + +void stress_test() { + ll tests = 0; + for (ll i = 0; i < 1000; i++) { + auto n = Random::integer(10, 20); + auto C = gen(n); + auto expected = naive(n, C); + for (ll m = 1; m <= n; m++) { + auto got = calc(n, m, C); + if (got != expected[m]) cerr << "got: " << got << ", expected: " << expected[m] << FAIL; + tests++; + } + } + cerr << "tested random queries: " << tests << endl; +} + +constexpr int N = 5000; +void performance_test() { + timer t; + auto C = genQuick(N); + t.start(); + auto hash = calc(N, N/2, C); + 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