Amor_S @ 2023-11-15 21:13:01
题目中每个节点的初始数值以及每次修改值的数据范围没有给出
by Amor_S @ 2023-11-15 21:13:30
@Alex_Wei
by You_Quiet @ 2023-11-15 21:16:04
@Amor_S +1
by jason_sun @ 2023-11-15 21:21:38
可以默认为int范围
by Alex_Wei @ 2023-11-17 16:55:08
@Amor_S 添加了说明