Release v2.0.0

- Add new chapter: Network flow base by @retrhelo (#30)
- Add new chapter: MST by @Gousheng-dd (#29)
- Add new chapter: Red blue by @Gousheng-dd (#29)
- Add new chapter: Proof of Statute by @qzylalala (#35, #45)
- Add new chapter: Approximation algorithm by @LMA936 and @Beau-Chen
  (#32)
- Add new chapter: Shortest path by @gjkk (#42)
- Add new chapter: Edit distance by @Jeckinchen and @wangnengjie (#40)
- Add new chapter: Greedy algorithm by @JerryHsh (#36)

Release v1.8.0

- Add new chapter: P and NP problems by @shangkaiyuan (#27)

Release v1.7.1

- Fix a layout problem, fix #26(#28 by @colinaaa)

Release v1.7.0

- Add Chapter: DP-01-Knapsack Problems (by @Huqingnan123)
- Add Chapter: DP-Context Free Grammar (by @Huqingnan123)

Release v1.6.2

* Resolve figure label conflicts (#22) by @colinaaa
* Fix lecture 1 errors (#23) by @L-LYR and @colinaaa

Release v1.6.1

- Some error fixes (#17, #21) by (@L-LYR, @NickLee2050)

Release v1.6.0

- Add new chapter: Tiling Problem (by @xian18)
- Add new chapter: Stable Matching (by @xian18)

Release v1.5.0

- Add new chapter: Image-segmentation (by @qzylalala)
- New subtitle (by @NickLee2050)

Release v1.4.0

- New lecture: Asymptotic Analysis (@Aegon0202)
- Re-format with `latexindent`

Release v1.3.1

- Reorder the chapters