Daily challenges lack randomness

We are currently in a long serie of BST problems:

  • 700. Search in a Binary Search Tree
    1. Trim a Binary Search Tree
    1. Convert BST to Greater Tree
    1. Increasing Order Search Tree
    1. Kth Smallest Element in a BST
    1. Recover Binary Search Tree
    1. Binary Search Tree Iterator

Not long ago there was this long serie of linked list problems.
Wouldn't it be nice if daily challenges showed a bit more of randomness ?

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