Poison
- 993. Cousins in Binary Tree
- 1530. Number of Good Leaf Nodes Pairs
- 2236. Root Equals Sum of Children
- LCP 44. 开幕式焰火
- 575. Distribute Candies
- 2180. Count Integers With Even Digit Sum
- 2265. Count Nodes Equal to Average of Subtree
- 1814. Count Nice Pairs in an Array
- 2364. Count Number of Bad Pairs
- 1146. Snapshot Array