LeetCode 803: Bricks Falling When Hit
A reverse simulation and union-find solution for counting how many bricks fall after each hit.
Tag
Grid
5 notes
LeetCode 764: Largest Plus Sign
A clear explanation of finding the largest plus sign in a mined grid using four directional dynamic programming scans.
LeetCode 711: Number of Distinct Islands II
A clear explanation of counting distinct island shapes under rotation and reflection using normalization and geometric transformations.
LeetCode 576: Out of Boundary Paths
A clear dynamic programming solution for counting paths that move a ball out of a grid boundary.
LeetCode 361: Bomb Enemy
A clear explanation of finding the best bomb placement in a grid using cached row and column segment counts.