A ____ is a part of a graph or the whole graph redrawn without changing the original positions of the vertices and edges. (Easy level) A directed graph is a graph in which a direction is assigned to the ____ connecting ____. (Medium level) A tree of a graph is a subgraph of the graph without loops and ____. All the vertices are ____ and each pair of vertices is connected by only ____.

Leaderboard

Visual style

Mga Option

I-switch ang template

I-restore ang gi-autosave: ?