LeetCode 1970 Solution Explained Step by Step (Binary Search + BFS)
At first glance, LeetCode 1970 looks intimidating. There’s a grid, flooding cells day by day, and somehow you’re supposed to figure out the last possible day you can still cross from the top to the bottom. If your first thought was “Do I simulate every day?” — you’re not alone.Let’s slow it down and solve … Read more