Leetcode Problem 882. Reachable Nodes In Subdivided Graph

882. Reachable Nodes In Subdivided Graph

Leetcode Solutions

Initialize a priority queue (min-heap) to keep track of nodes to visit, sorted by distance from the source node.
Initialize a dictionary to keep track of the shortest distance from the source to each node, with the source node distance initialized to 0.
Initialize a dictionary to keep track of the utilization of each edge.
While the priority queue is not empty, extract the node with the minimum distance.
For each neighbor of the extracted node, calculate the distance through the current node.
If the calculated distance is less than the current distance to the neighbor, update the neighbor's distance and add it to the priority queue.
Keep track of the utilization of the edge between the current node and the neighbor.
After visiting all nodes, sum up the number of nodes reached plus the utilization of each edge to get the total number of reachable nodes.

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