778. Swim in Rising Water | Leetcode Daily - Python
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In this detailed LeetCode tutorial, we break down the hard problem 778. Swim in Rising Water. We explore how to find the minimum time required to swim from the top-left to the bottom-right of an elevation grid. The core idea is reframing the problem: find a path that minimizes the maximum elevation along it. We'll walk through two powerful solutions. First, a clever approach using Binary Search on the answer combined with a Breadth-First Search (BFS) to check if a path is possible at a given time 't'. Second, we solve it as a shortest path problem using Dijkstra's algorithm with a min-heap, where the path 'cost' is the maximum elevation encountered. We'll cover the Python code and complexity analysis for both methods.
Perfect for coding interview preparation and improving problem-solving skills.
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Solution Link:
https://leetcode.com/problems/swim-in...
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