---
comments: true
icon: material/timer-sand
---
# 第 2 章 Complexity Analysis
![complexity_analysis](../assets/covers/chapter_complexity_analysis.jpg){ width="600" }{ class="cover-image" }
!!! abstract
Complexity analysis is like a space-time guide in the vast universe of algorithms.
It leads us to explore deeply in the dimensions of time and space, in search of more elegant solutions.
## 本章内容
- [2.1 Evaluating Algorithm Efficiency](https://www.hello-algo.com/chapter_computational_complexity/performance_evaluation/)
- [2.2 Iteration and Recursion](https://www.hello-algo.com/chapter_computational_complexity/iteration_and_recursion/)
- [2.3 Time Complexity](https://www.hello-algo.com/chapter_computational_complexity/time_complexity/)
- [2.4 Space Complexity](https://www.hello-algo.com/chapter_computational_complexity/space_complexity/)
- [2.5 Summary](https://www.hello-algo.com/chapter_computational_complexity/summary/)