mirror of
https://github.com/multipleof4/lynchmark.git
synced 2026-01-14 16:47:55 +00:00
31 lines
844 B
JavaScript
31 lines
844 B
JavaScript
async function findShortestPath(graph, start, end) {
|
|
const { default: PriorityQueue } = await import('https://cdn.jsdelivr.net/npm/js-priority-queue@0.4.1/+esm');
|
|
|
|
const dist = { [start]: 0 };
|
|
const visited = new Set();
|
|
const pq = new PriorityQueue({ comparator: (a, b) => a[1] - b[1] });
|
|
|
|
pq.queue([start, 0]);
|
|
|
|
while (pq.length) {
|
|
const [node, d] = pq.dequeue();
|
|
|
|
if (visited.has(node)) continue;
|
|
visited.add(node);
|
|
|
|
if (node === end) return d;
|
|
|
|
for (const [neighbor, weight] of Object.entries(graph[node] || {})) {
|
|
const newDist = d + weight;
|
|
if (newDist < (dist[neighbor] ?? Infinity)) {
|
|
dist[neighbor] = newDist;
|
|
pq.queue([neighbor, newDist]);
|
|
}
|
|
}
|
|
}
|
|
|
|
return Infinity;
|
|
}
|
|
export default findShortestPath;
|
|
// Generation time: 4.850s
|
|
// Result: FAIL
|