A. Why learn data structures and algorithms
Interview maker
- If manufacturers want their future development, data structures and algorithms is a must-have skill, whether it is social or school recruit recruit, manufacturers have people like Shredded algorithm code.
Business Development Engineer
- Though all day use CRUD, but want to make good use of the library, you need to understand their design principle (data structure), time and space complexity analysis.
- We also use various frameworks, middleware and the underlying system, such as Spring, RPC framework, messaging middleware, Redis and so on, there are design data structures and algorithms lot of ground.
- Master data structures and algorithms for reading the source code, understand the design principles behind the very useful.
Infrastructure Development Engineer
- RPC framework such as design, to achieve the revenue levels, we must optimize the algorithm, terms of data access efficiency, saving memory and other superior than others.
- Performance is good or bad is a very important criterion of the capability, even if the time of the program, space complexity analysis will not be hard to write Jiaoyou performance code.
middle age crisis
- Many people think that after 35-year-old programmer can easily fall into a bottleneck, be eliminated industry. In fact, that is, if you do not understand the data structures and algorithms, after 35 years of difficult to have improved, can easily be replaced by a young programmer. Data Structures and Algorithms is an accumulation of skills. Inside Jin Yong's novels, a person practicing beating dragon 18 palms, a person practicing internal strength Quanzhen beginning, skills are suspended or beaten, ten years later is still beating and hanging, but two years later, Dragon eighteen palm also beat on how to strengthen ourselves, and algorithms and data structures that internal strength, beating dragon 18 palms is a variety of framework, no matter how familiar framework, not as understanding of algorithms and data structures within it.
II. What is the data structure
Definition: computer storage, organize data, refers to the presence of one or more data elements of the particular relationship between each set.
Three commonly used data structures
IV. What algorithm is
The method of operation is a set of data, data structures and algorithms are complementary, the service data structure is the algorithm, the algorithm to be acting on a particular data structure.
V. common algorithms
From start learning content main aspects:
It is to learn its "origin" "own characteristics", "suitable for solving the problem" and "practical application scenarios.