mirror of
https://github.com/multipleof4/lynchmark.git
synced 2026-01-13 16:17:54 +00:00
21 lines
574 B
JavaScript
21 lines
574 B
JavaScript
const findShortestPath = async (g, s, e) => {
|
|
const { default: P } = await import('https://esm.sh/js-priority-queue');
|
|
const q = new P({ comparator: (a, b) => a.w - b.w }), m = { [s]: 0 };
|
|
q.queue({ n: s, w: 0 });
|
|
|
|
while (q.length) {
|
|
const { n, w } = q.dequeue();
|
|
if (n === e) return w;
|
|
if (w > (m[n] ?? 1 / 0)) continue;
|
|
|
|
for (const [k, v] of Object.entries(g[n] || {})) {
|
|
const t = w + v;
|
|
if (t < (m[k] ?? 1 / 0)) {
|
|
m[k] = t;
|
|
q.queue({ n: k, w: t });
|
|
}
|
|
}
|
|
}
|
|
return 1 / 0;
|
|
};
|
|
export default findShortestPath; |