shawnlyu, Author at shawnlyu

August 25, 2021August 26, 2021

Intro to Kafka – 1

kafka architecture — Kafka’s key components.
Ref: https://ibm-cloud-architecture.github.io/refarch-eda/technology/kafka-overview/

Kafka is a distributed system that provides a highly scalable, elastic, fault-tolerant, and secure solution to event streaming.

November 13, 2020July 8, 2021

LeetCode Authorized Author

I’ve joined LeetCode’s Content Creator Team to publish official solutions since Oct 26, 2020. Here you may find some of my work that’s published on LeetCode:

November 11, 2020March 7, 2021

According to WIKIPEDIA, a database index is a data structure that improves the speed of data retrieval on a database table at the cost of additional writes and storage space to maintain the index. One of the most used data structure to implement index is B-tree. Generally, there are two types of index: clustered index and non-clustered index.

October 27, 2020October 27, 2020

Java Garbage Collection

What is garbage collection

October 20, 2020October 20, 2020

[Leetcode]1626. Best Team With No Conflicts

You are the manager of a basketball team. For the upcoming tournament, you want to choose the team with the highest overall score. The score of the team is the sum of scores of all the players in the team.
However, the basketball team is not allowed to have conflicts. A conflict exists if a younger player has a strictly higher score than an older player. A conflict does not occur between players of the same age.
Given two lists, scores and ages, where each scores[i] and ages[i] represents the score and age of the i^th player, respectively, return the highest overall score of all possible basketball teams.

September 27, 2020

[Challenge]Minimum adjacent swaps required to Sort Binary array

Given a binary array, task is to sort this binary array using minimum swaps. We are allowed to swap only adjacent elements

September 25, 2020September 25, 2020

[Leetcode]179. Largest Number

Given a list of non negative integers, arrange them such that they form the largest number.

September 22, 2020September 22, 2020

[Leetcode]48. Rotate Image

You are given an n x n 2D matrix representing an image, rotate the image by 90 degrees (clockwise).
You have to rotate the image in-place, which means you have to modify the input 2D matrix directly. DO NOT allocate another 2D matrix and do the rotation.

Author: shawnlyu