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>

1 files changed, 43 insertions, 0 deletions

diff --git a/content/geometry/triangle.cpp b/content/geometry/triangle.cpp
new file mode 100644
index 0000000..534bb10
--- /dev/null
+++ b/content/geometry/triangle.cpp
@@ -0,0 +1,43 @@
+// Mittelpunkt des Dreiecks abc.
+pt centroid(pt a, pt b, pt c) {return (a + b + c) / 3.0;}
+
+// Flächeninhalt eines Dreicks bei bekannten Eckpunkten.
+double area(pt a, pt b, pt c) {
+	return abs(cross(a, b, c)) / 2.0;
+}
+
+// Flächeninhalt eines Dreiecks bei bekannten Seitenlängen.
+double area(double a, double b, double c) {
+	double s = (a + b + c) / 2.0; //unpräzise
+	return sqrt(s * (s-a) * (s-b) * (s-c));
+}
+
+// Zentrum des größten Kreises im Dreiecke
+pt inCenter(pt a, pt b, pt c) {
+	double x = abs(a-b), y = abs(b-c), z = abs(a-c);
+	return (y*a + z*b + x*c) / (x+y+z);
+}
+
+// Zentrum des Kreises durch alle Eckpunkte
+// a, b und c nicht kollinear
+pt circumCenter(pt a, pt b, pt c) {
+	b -= a, c -= a;
+	pt d = b * norm(c) - c * norm(b);
+	d = {-d.imag(), d.real()};
+	return a + d / cross(b, c) / 2.0;
+}
+
+// -1 => p außerhalb Kreis durch a,b,c
+//  0 => p auf Kreis durch a,b,c
+//  1 => p im Kreis durch a,b,c
+int insideOutCenter(pt a, pt b, pt c, pt p) {// braucht lll
+	return ccw(a,b,c) * sgn(imag((c-b)*conj(p-c)*(a-p)*conj(b-a)));
+}
+
+// Sind die Dreiecke a1, b1, c1, and a2, b2, c2 ähnlich?
+// Erste Zeile testet Ähnlichkeit mit gleicher Orientierung,
+// zweite Zeile testet Ähnlichkeit mit verschiedener Orientierung
+bool similar(pt a1, pt b1, pt c1, pt a2, pt b2, pt c2) {
+	return (b2-a2) * (c1-a1) == (b1-a1) * (c2-a2) ||
+	       (b2-a2) * conj(c1-a1) == conj(b1-a1) * (c2-a2);
+}