问题2106 摘水果 ★★★☆☆ https://leetcode.cn/problems/maximum-fruits-harvested-after-at-most-k-steps/ 题目要求并不难理解，从某个startPos开始，每一步可以向左走或者向右走，最多可以走k步，凡是经过的点的水果就可以收割，求最多能收割多少水果。 一开始我的想法是用类似宽度优先遍历BFS的方式去暴力计算...

Kafka replicates the log for each topic’s partitions across a configurable number of servers. This allows automatic failover to these replicas when a server in the cluster fails so messages remain ...

There are multiple possible message delivery guarantees that could be provided: at most once, messages may be lost but are never redelivered at least once, messages are never lost but may be r...

The producer sends data directly to the broker that is the leader for the partition without any intervening routing tier. To help the producer do this all Kafka nodes can answer a request for metad...

The Kafka consumer works by issuing fetch requests to the brokers leading the partitions it wants to consume. The consumer specifies its offset in the log with each request and receives back a chun...

Once poor disk access patterns have been eliminated, there are two common causes of inefficiency in this type of system: too many small I/O operations, and excessive byte copying. batching The sma...

Kafka relies heavily on the filesystem for storing and caching messages. There is a general perception that “disks are slow” which make people skeptical that a persistent structure can offer compet...

An agent is anything that can be viewed as perceiving its environment through sensors and acting upon that environment through actuators. An agent’s percept sequence is the complete history of eve...

By default Redis binds to all the interfaces and has no authentication at all. Make sure the port Redis uses to listen for connections (by default 6379 and additionally 16379 if you run Redis i...

问题8 字符串转换整数 ★☆☆☆☆ https://leetcode-cn.com/problems/string-to-integer-atoi/ 这个题目是经典的字符串转整数，从解题思路上来说，并不复杂，根据题目要求按顺序处理字符串就可以，需要注意的是如何处理overflow的问题。相比问题7，这个题目并没有要求不能使用长整型，所以偷懒的做法就是直接用长整型。如果题目要求不能使用长整型...