Graphs, trees, computational geometry

[KruZZy]

I would like to work on the following:

• [x] dijkstra (py)
• [x] bipartite graph check (py)
• [ ] k-far (cpp & py)
• [x] orientation of 3 points (cpp & py)
• [x] area of a triangle (cpp & py)
• [ ] area of a convex polygon (cpp & py)