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authormzuenni <mzuenni@users.noreply.github.com>2024-07-28 22:54:40 +0200
committerGitHub <noreply@github.com>2024-07-28 22:54:40 +0200
commit8d11c6c8213f46f0fa19826917c255edd5d43cb1 (patch)
tree96d75baff33d5a04b5a60f1a41f514a26c716874 /test/other/josephusK.cpp
parent8c33b4e0d3030cfed17fc64b4fe41133339f6d87 (diff)
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 <noob999noob999@gmail.com>
Diffstat (limited to 'test/other/josephusK.cpp')
-rw-r--r--test/other/josephusK.cpp43
1 files changed, 43 insertions, 0 deletions
diff --git a/test/other/josephusK.cpp b/test/other/josephusK.cpp
new file mode 100644
index 0000000..e837640
--- /dev/null
+++ b/test/other/josephusK.cpp
@@ -0,0 +1,43 @@
+#include "../util.h"
+#include <other/josephus2.cpp>
+#include <other/josephusK.cpp>
+
+template<ll O>
+ll naive(ll n, ll k) {
+ vector<ll> state(n);
+ iota(all(state), O);
+ for (ll i = k-1; state.size() > 1; i = (i + k - 1) % sz(state)) {
+ state.erase(state.begin() + i);
+ }
+ return state[0];
+}
+
+void stress_test() {
+ ll tests = 0;
+ for (ll i = 1; i < 500; i++) {
+ for (ll j = 1; j <= i; j++) {
+ auto got = josephus(i, j);
+ auto expected = naive<0>(i, j);
+ if (got != expected) cerr << "error: " << i << FAIL;
+ tests++;
+ }
+ }
+ cerr << "tested queries: " << tests << endl;
+}
+
+constexpr int N = 10'000'000;
+void performance_test() {
+ timer t;
+ hash_t hash = 0;
+ t.start();
+ hash += josephus(N, N/2);
+ 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();
+}
+