1. [todo] 687. Longest Univalue Path

  2. 997. Find the Town Judge

  3. 994. Rotting Oranges

  4. 993. Cousins in Binary Tree

  5. 973. K Closest Points to Origin

  6. 946. Validate Stack Sequences

  7. 937. Reorder Data in Log Files

  8. 897. Increasing Order Search Tree

  9. 876. Middle of the Linked List

  10. 872. Leaf-Similar Trees

  11. 852. Peak Index in a Mountain Array

  12. 844. Backspace String Compare

  13. 813. Largest Sum of Averages

  14. 783. Minimum Distance Between BST Nodes

  15. 763. Partition Labels

  16. 75. Sort Colors

  17. 731. My Calendar II

  18. 729. My Calendar I

  19. 724. Find Pivot Index

  20. 720. Longest Word in Dictionary

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