diff options
| author | mzuenni <mzuenni@users.noreply.github.com> | 2024-07-28 22:54:40 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-07-28 22:54:40 +0200 |
| commit | 8d11c6c8213f46f0fa19826917c255edd5d43cb1 (patch) | |
| tree | 96d75baff33d5a04b5a60f1a41f514a26c716874 /geometry/segmentIntersection.cpp | |
| parent | 8c33b4e0d3030cfed17fc64b4fe41133339f6d87 (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 'geometry/segmentIntersection.cpp')
| -rw-r--r-- | geometry/segmentIntersection.cpp | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/geometry/segmentIntersection.cpp b/geometry/segmentIntersection.cpp deleted file mode 100644 index 6dc5dc5..0000000 --- a/geometry/segmentIntersection.cpp +++ /dev/null @@ -1,63 +0,0 @@ -struct seg { - pt a, b; - int id; - bool operator<(const seg& o) const { - if (real(a) < real(o.a)) { - int s = orientation(a, b, o.a); - return (s > 0 || (s == 0 && imag(a) < imag(o.a))); - } else if (real(a) > real(o.a)) { - int s = orientation(o.a, o.b, a); - return (s < 0 || (s == 0 && imag(a) < imag(o.a))); - } - return imag(a) < imag(o.a); - } -}; - -struct event { - pt p; - int id, type; - bool operator<(const event& o) const { - if (real(p) != real(o.p)) return real(p) < real(o.p); - if (type != o.type) return type > o.type; - return imag(p) < imag(o.p); - } -}; - -bool lessPT(const pt& a, const pt& b) { - return real(a) != real(b) ? real(a) < real(b) - : imag(a) < imag(b); -} - -bool intersect(const seg& a, const seg& b) { - return lineSegmentIntersection(a.a, a.b, b.a, b.b); -} - -pair<int, int> intersect(vector<seg>& segs) { - vector<event> events; - for (seg& s : segs) { - if (lessPT(s.b, s.a)) swap(s.b, s.a); - events.push_back({s.a, s.id, 1}); - events.push_back({s.b, s.id, -1}); - } - sort(all(events)); - - set<seg> q; - vector<set<seg>::iterator> where(sz(segs)); - for (auto e : events) { - int id = e.id; - if (e.type > 0) { - auto it = q.lower_bound(segs[id]); - if (it != q.end() && intersect(*it, segs[id])) - return {it->id, segs[id].id}; - if (it != q.begin() && intersect(*prev(it), segs[id])) - return {prev(it)->id, segs[id].id}; - where[id] = q.insert(it, segs[id]); - } else { - auto it = where[id]; - if (it != q.begin() && next(it) != q.end() && intersect(*next(it), *prev(it))) - return {next(it)->id, prev(it)->id}; - q.erase(it); - } - } - return {-1, -1}; -} |
