mirror of
https://github.com/multipleof4/lynchmark.git
synced 2026-01-14 08:37:56 +00:00
25 lines
606 B
JavaScript
25 lines
606 B
JavaScript
const findShortestPath = async (g, s, e) => {
|
|
const { default: PQ } = await import('https://cdn.jsdelivr.net/npm/js-priority-queue@0.1.5/+esm')
|
|
const q = new PQ({ comparator: (a, b) => a.d - b.d })
|
|
const D = { [s]: 0 }
|
|
|
|
q.queue({ n: s, d: 0 })
|
|
|
|
while (q.length) {
|
|
const { n, d } = q.dequeue()
|
|
|
|
if (n === e) return d
|
|
if (d > (D[n] ?? 1 / 0)) continue
|
|
|
|
for (const [v, w] of Object.entries(g[n] || {})) {
|
|
const c = d + w
|
|
if (c < (D[v] ?? 1 / 0)) {
|
|
D[v] = c
|
|
q.queue({ n: v, d: c })
|
|
}
|
|
}
|
|
}
|
|
|
|
return 1 / 0
|
|
}
|
|
export default findShortestPath; |