Mind palace

02-17

103. Binary Tree Zigzag Level Order Traversal

01-20

490. The Maze

01-20

101. Symmetric Tree

01-19

210. Course Schedule II

01-18

993. Cousins in Binary Tree

01-18

865. Smallest Subtree with all the Deepest Nodes

01-18

1123. Lowest Common Ancestor of Deepest Leaves

01-17

310. Minimum Height Trees

01-17

1254. Number of Closed Islands

01-17

934. Shortest Bridge