Leetcode Problem 2503. Maximum Number of Points From Grid Queries

2503. Maximum Number of Points From Grid Queries

Leetcode Solutions

Topological Sort by value

  1. Initialize a min-heap with the value and coordinates of the top-left cell (0, 0).
  2. Initialize a set to keep track of visited cells.
  3. Initialize an empty list to store the order of cell values.
  4. While the heap is not empty, pop the smallest value cell, add its value to the order list, and push its unvisited neighbors to the heap.
  5. Iterate through the order list to update each value with the maximum value seen so far.
  6. For each query, use binary search on the order list to find the number of cells with values less than the query value.
  7. Return the result list containing the answers for each query.
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Java | Prioritized BFS | Explained

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