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use super::*;
use crate::construction::heuristics::InsertionContext;
use crate::solver::RefinementContext;
pub struct NeighbourRemoval {
limit: JobRemovalLimit,
}
impl NeighbourRemoval {
pub fn new(limit: JobRemovalLimit) -> Self {
Self { limit }
}
}
impl Default for NeighbourRemoval {
fn default() -> Self {
Self::new(JobRemovalLimit::default())
}
}
impl Ruin for NeighbourRemoval {
fn run(&self, _refinement_ctx: &RefinementContext, mut insertion_ctx: InsertionContext) -> InsertionContext {
let affected = get_removal_chunk_size(&insertion_ctx, &self.limit);
let problem = insertion_ctx.problem.clone();
let random = insertion_ctx.random.clone();
let routes = insertion_ctx.solution.routes.clone();
let locked = insertion_ctx.solution.locked.clone();
select_seed_jobs(&problem, &routes, &random).filter(|job| !locked.contains(job)).take(affected).for_each(
|job| {
let route = insertion_ctx.solution.routes.iter_mut().find(|rc| rc.route.tour.contains(&job));
if let Some(route) = route {
route.route_mut().tour.remove(&job);
insertion_ctx.solution.required.push(job);
}
},
);
insertion_ctx
}
}