It is a greedy algorithm in graph theory as it finds a minimal spanning tree for a connected weighted graph adding increase price arcs at each step. If the graph is not connected, then it finds a minimal spanning forest (a minimal spanning tree for each connected component).

Make a forest F (a set of trees), where each vertex in the graph is a separate tree: -make a set S containing all the edges in the graph -while S is nonempty and F is not yet spanning -remove an edge with minimal weight from Sif the removed edge connects two different trees then add it to the forest F, combine two trees into a individual treeAt the termination of the algorithm, the forest forms a minimal spanning forest of the graph.

```
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package com.algorithmexamples.graphs.undirected.weighted
interface MST {
/**
* Returns the edges in a minimum spanning tree (or forest).
* @return the edges in a minimum spanning tree (or forest) as
* * an iterable of edges
*/
fun edges(): Iterable<UWGraph.Edge>
/**
* Returns the sum of the edge weights in a minimum spanning tree (or forest).
* @return the sum of the edge weights in a minimum spanning tree (or forest)
*/
fun weight(): Double
}
```