DSA TutorialLesson 2Free preview

DSA Intro

This lesson is part of DSA · All levels

Summary

The introduction of DSA explains why data structure and algorithms are important: programs should not only be accurate, but also be fast and memory-efficient. In this section you understand the difference between raw data and information, and how to evaluate the quality of an algorithmic solution. This concept becomes the foundation before we go into concrete implementation.

Key points

Data structures focus on how data is stored; algorithms focus on the steps of processing it.
The quality of the solution is judged by the truth, time of execution, and memory usage
Good algorithms are definitive, input clear, and always stop.
Complexity analysis allows cross-machine comparison of algorithms

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