Function cnetworks::bfs_many

pub fn bfs_many(
    net: &Network, 
    root: usize, 
    targets: &[usize]
) -> Result<Vec<(usize, Option<usize>)>, Err>

Like bfs, but with multiple targets.

Returns a vector of (target, distance) pairs in the order in which targets were encountered, Err if the root or any of the target nodes do not exist.

A distance of None means the target was not enountered, such targets are pushed to the end of the returned vector.

Panics

This function pancis when the queue operations fail.

Examples

let net = Network::new(100, Model::ER { p: 0.05, whole: false }, Weight::None);
for (target, distance) in bfs_many( &net, 1, &[2, 3])? {
    match distance {
        Some(distance) => println!("Distance from 1 to {} is {}", target, distance),
        None => println!("Cannot reach {} from 1", target),
    }
}