Campus recruitment often has an overwhelming hurdle, which is the written test, which is more dull and cruel than the interview.
Regardless of your ability in all aspects, as long as you can't pass the written test, there is no opportunity for an interview. In particular, some written tests only take algorithm questions. If you do it correctly, you will get points. If you do wrong, you may not get any points. Often the score is calculated based on the number of correct answers, not the score.
In short, the written test is the most rude and lowest cost method of brushing people. Because the company has limited manpower and often has a large number of applicants, it is impossible to arrange interviews, so the written test and resume screening can wipe out most people, and some people may It is occasionally not good, but the company does not care.
The supply and demand relationship is here, and the written test is obviously inevitable. Although some early interviews do not require a written test, most companies need to go through the written test.
As the saying goes, there are countermeasures under the policy, and our students will have corresponding ways to prepare for the written test. Probably talk about some methods.
1 Lay a good foundation for algorithms and data structures
Before doing a problem, you need to learn the basics of data structures and algorithms. It is recommended to read some introductory books on algorithms and data structures, and write it yourself in the language you are good at. Practice makes perfect until you really master it.
2 Sword finger offer
Jianzhi offer is a classic algorithm book, not only suitable for interviews, some company's written test questions will also refer to Jianzhi offer.
3 LeetCode
After swiping the sword finger offer and mastering it, you can start brushing LeetCode. The questions of LeetCode are often moved directly to the written test questions. It is recommended that everyone brush the questions in a certain order, the main brush is medium and easy.
4 Company Zhenti
Some companies like to write their own test questions, sometimes the question types are very strange, and the form of the questions is not the same. The results are often unexpected and can only be given up. Therefore, it is also a very important step to brush the real questions of some companies' written exams in advance. When you brush more, you will feel that you can write a little about any questions you encounter.
5 Familiar with the language you use
This mainly refers to understanding the use of data structures in programming languages, such as stacks, queues, linked lists, hash tables, etc., as well as some sorting methods and comparators. In addition, you have to write basic input and output, because many online written test sites require you to complete the input and output.
6 Scientific answers
Here is a little trick, that is, if you can't think of it, you can directly output test cases.
7 Check for errors
In addition, some problems may time out, because the complexity is too large, you can consider space for time.
For some problems with memory problems, it is necessary to check whether the size of the array exceeds the specified space complexity.
If it is a recursive stack overflow, you may want to consider pruning or use non-recursive practices.
In addition, remember to check whether your variable type is correct. Sometimes you may need to use long but you use int, which will also cause you to lose points.
8 Local debugging
Many written test questions support local editors for submission and processing, so you can test locally first. If there is a problem, you can consider breakpoint debugging to make it easier to find where the error is.
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