You can refer to the following links to get more information on the topics covered in this chapter:
- Wikipedia's list of best-, worst-, and average-case complexities (https://en.wikipedia.org/wiki/Best,_worst_and_average_case)
- Big O Cheatsheet (http://bigocheatsheet.com/)
- Heuristic algorithms at Northwestern University (https://optimization.mccormick.northwestern.edu/index.php/Heuristic_algorithms)
- Heuristic design and optimization at MIT (http://www.mit.edu/~moshref/Heuristics.html)
- Big Omicron And Big Omega And Big Theta by Donald Knuth (http://www.phil.uu.nl/datastructuren/10-11/knuth_big_omicron.pdf)