巴莱克，lc原题一道（需要开会员）

meta ，真题如下

you are given a binary search tree. Goal is to find the sum of all elements in the tree which are in range [low, high].

google面试真题，如下

You are given an integer array of size N.Everyelement ofthe array is greater than or equal to 0.Starting from arr[start index],follow eachelement to the indexitpoints.to.
Continue to do this until you finda cycle.Return the length ofthe cycle.Ifno cycle is found return -1

Doordash 真题如下

 Suppose you are in charge of implementing the restaurant search bar at DoorDash. Your goal is to.given a list of N restaurant names, handle M subsequent search queries, where for each query you return up to K restaurants whose name contains the query as a prefix, For example, if K=2 and the search query is "pan", we may return "panda express" and "panera bread"

我们最近VO业务较为火爆，虽然临近圣诞节了，但是大部分公司的面试流程仍然在推进中，错过秋招的同学们，请务必抓住最后的机会，春招大概率上岸。

我们能够解决几乎您面试中碰到的所有技术难题，你只需要准备你个人的BQ问答，与面试官的友好沟通即可。如果有需要，请联系我。今年已经通过meta，google，tiktok等多家科技巨头的多轮面试，如果你也需要，请联系我。