Lonely Pixel I

Construct ancestor matrix from a binary tree

November 26, 2024 · 4 min · TagsList of tags for the post  matrix ·  tree-ds ·  Last updated: Aug 2, 2025

Construct binary tree from an ancestor matrix

November 26, 2024 · 5 min · TagsList of tags for the post  matrix ·  tree-ds ·  Last updated: Aug 2, 2025

The Maze 1 - Can the Ball Stop at Destination

The Maze 2 - Shortest Distance

The Maze 3 - Shortest Instructions to Reach the Hole

Sliding Puzzle

Maximum Matrix Sum

Rotating the Box

Flip Columns For Maximum Number of Equal Rows

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