StackRating
An Elo-based rating system for Stack Overflow
                
    Answers and rating deltas for
    How can I get the root of a binary tree (set or map)?
| Author | Votes | Δ | 
|---|---|---|
| WindyFields | 3 | +4.85 | 
| whoan | 1 | -0.61 | 
Last visited: Dec 1, 2017, 2:11:24 AM