Lecture Preview: Sorting

(Suggested book reading: Programming Abstractions in C++, section 7.5, 10.1)

Today we will discuss a few algorithms for sorting the data in a vector. One algorithm is selection sort, which repeatedly finds the smallest remaining element and swaps it to the front:


Another algorithm is merge sort, which involves splitting the data in half, sorting the halves, and then merging the sorted halves into a sorted whole:


There are a huge number of sorting algorithms, each with its own pros and cons. This makes sorting an interesting problem to study in terms of the tradeoffs and algorithm analysis.

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