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Skaidrė: 1
Hold on, Jamie! I’ve got just the thing to get you to class on time: Dijkstra's Algorithm!
Ugh, I’m gonna be late for Professor Lin’s lecture again! It's 9:05 AM already!
Ugh, I’m gonna be late for Professor Lin’s lecture again! It's 9:05 AM already!
Skaidrė: 2
import heapqdef dijkstra(graph, start): dist = {node: float('inf') for node in graph} dist[start] = 0 pq = [(0, start)] while pq: (d, node) = heapq.heappop(pq) for neighbor, weight in graph[node]: new_dist = d + weight if new_dist dist[neighbor]: dist[neighbor] = new_dist heapq.heappush(pq, (new_dist, neighbor)) return dist
Skaidrė: 3
import heapqdef dijkstra(graph, start): dist = {node: float('inf') for node in graph} dist[start] = 0 pq = [(0, start)] while pq: (d, node) = heapq.heappop(pq) for neighbor, weight in graph[node]: new_dist = d + weight if new_dist dist[neighbor]: dist[neighbor] = new_dist heapq.heappush(pq, (new_dist, neighbor)) return dist
Here’s the deal. You’re at Dormitory (A) and need to get to Lecture Hall (Z). The map shows several paths and each one has a travel time in minutes. We can use Dijkstra’s Algorithm to find the quickest route!

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