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Recently, a friend went to Alibaba for an interview, but the interview failed, and he shared an algorithm interview question he was not good at. The topic is this.
Problem: Given a binary search tree (BST), find the Kth smallest node in the tree.
Subject: Alibaba Expert: Wenjing/Alibaba Cloud CDN Senior Technical Expert
Reference answer:
- Inspection point
- Understanding of basic data structure and coding ability
- Recursive use
How to learn efficiently and get started quickly with Flutter?
Since the release of Flutter for more than half a year, I have contacted many front-end, Android, and iOS developers, and more than 80% of them told me that he is learning or planning to learn Flutter . But most of the developers encountered the following problems when communicating with me:
1. Flutter is brand new from the language to the development framework, and the accumulation of the technology stack has to start from the beginning, and you can't learn it.
2. Read a lot of Flutter tutorials, but they pay too much attention to the introduction or implementation details of each parameter of the application layer API, and the threshold is too high to start.
In fact, if you want to learn Flutter well, you should not just stop at the application layer API, but also need to go deep into its principles, design ideas, and general concepts . The learning process should be combined with the past terminal development experience to establish an abstract level of knowledge system of its own.
In this way, you can break away from the strong binding restriction of experience and platform, and even if the old framework is constantly updated in the future and new solutions appear, you can still remain invincible.
You can look at the following Flutter core knowledge graph, covering development, debugging, testing, release, online operation and maintenance, and project management . I believe that as long as you master the following knowledge points, you can basically master Flutter.
What are the key technologies at the bottom of the Flutter framework? What are the best practices for Flutter application development? What kind of terminal technical talents does the enterprise need? I believe you will find the answers to these questions in "Flutter Core Technology and Actual Combat".
These will help you quickly get started with Flutter and use Flutter to develop an enterprise-level App . I believe it can also help you connect Flutter with past development experience and establish your own knowledge system. At the same time, you can also understand the Flutter framework through phenomena. Usage , and see the principles and design concepts behind it .
In addition to flutter, what else must be mastered in Android development?
I believe that most of my friends who are engaged in Android development are finding that finding a job is getting harder and harder and the requirements for interviews are getting higher
Finally, I sent the benefits. Now follow me and join the group chat to get the source code analysis, custom View, animation implementation, architecture sharing, etc.
The content is moderately difficult and concise. It only takes more than ten minutes to read every day.
You can discuss with me, welcome to join the group to discuss, there are flutter-low-level development-performance optimization-mobile architecture-senior UI engineer-NDK related professionals and video teaching materials, and there are more interview questions waiting for you to pick up and
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