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/math/bigint.cpp | 122 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 122 insertions(+) create mode 100644 test/math/bigint.cpp (limited to 'test/math/bigint.cpp') diff --git a/test/math/bigint.cpp b/test/math/bigint.cpp new file mode 100644 index 0000000..3fc4ac1 --- /dev/null +++ b/test/math/bigint.cpp @@ -0,0 +1,122 @@ +#include "../util.h" +#include + +template +struct modInt { + ll value = 0; + modInt() {} + modInt(const bigint& x) { + stringstream a; + a << x; + string b = a.str(); + for (ll i = b[0] == '-' ? 1 : 0; i < sz(b); i++) { + value *= 10; + value += b[i] - '0'; + value %= MOD; + } + if (b[0] == '-') value = (MOD - value) % MOD; + } + + modInt(ll x) : value(((x % MOD) + MOD) % MOD) {} + + modInt operator+(modInt o) const {return value + o.value;} + modInt operator-(modInt o) const {return value - o.value;} + modInt operator*(modInt o) const {return value * o.value;} + + modInt& operator+=(modInt o) {return *this = *this + o;} + modInt& operator-=(modInt o) {return *this = *this - o;} + modInt& operator*=(modInt o) {return *this = *this * o;} + + ll& operator*() {return value;} + bool operator==(const modInt& o) const {return value == o.value;} + bool operator!=(const modInt& o) const {return value != o.value;} +}; + +constexpr ll MOD = 1'394'633'899; +constexpr ll POOL = 8; + +void stress_test() { + int queries = 0; + for (int tries = 0; tries < 1000; tries++) { + vector> expectedPool(POOL); + vector gotPool(POOL); + for (int i = 0; i < POOL; i++) { + ll x = Random::integer(-1'000'000'000'000'000'000ll, 1'000'000'000'000'000'000ll); + expectedPool[i] = x; + gotPool[i] = x; + if (expectedPool[i] != modInt(gotPool[i])) cerr << "error: 0" << FAIL; + } + for (int i = 0; i < 200; i++) { + int a = Random::integer(0, POOL); + int b = Random::integer(0, POOL); + int o = Random::integer(0, 3); + + if (Random::integer(0, 2) == 0) {//x= + auto tmpExpected = expectedPool[a]; + auto tmpGot = gotPool[a]; + + if (o == 0) { + tmpExpected += expectedPool[b]; + tmpGot += gotPool[b]; + } + if (o == 1) { + tmpExpected -= expectedPool[b]; + tmpGot -= gotPool[b]; + } + if (o == 2) { + tmpExpected -= expectedPool[b]; + tmpGot -= gotPool[b]; + } + + if (tmpExpected != modInt(tmpGot)) { + cerr << gotPool[a]; + if (o == 0) cerr << "+"; + if (o == 1) cerr << "-"; + if (o == 2) cerr << "*"; + cerr << gotPool[b] << "=" << tmpGot << endl; + cerr << "error: 1" << FAIL; + } + + expectedPool[b] = tmpExpected; + gotPool[b] = tmpGot; + } else {//x + int c = Random::integer(0, POOL); + + modInt tmpExpected; + bigint tmpGot; + + if (o == 0) { + tmpExpected = expectedPool[a] + expectedPool[b]; + tmpGot = gotPool[a] + gotPool[b]; + } + if (o == 1) { + tmpExpected = expectedPool[a] - expectedPool[b]; + tmpGot = gotPool[a] - gotPool[b]; + } + if (o == 2) { + tmpExpected = expectedPool[a] * expectedPool[b]; + tmpGot = gotPool[a] * gotPool[b]; + } + + if (tmpExpected != modInt(tmpGot)) { + cerr << gotPool[a]; + if (o == 0) cerr << "+"; + if (o == 1) cerr << "-"; + if (o == 2) cerr << "*"; + cerr << gotPool[b] << "=" << tmpGot << endl; + cerr << "error: 2" << FAIL; + } + + expectedPool[c] = tmpExpected; + gotPool[c] = tmpGot; + } + queries++; + } + } + cerr << "tested random queries: " << queries << endl; +} + +int main() { + stress_test(); +} + -- cgit v1.2.3