What is Quick Sort Quicksort is an algorithm that sorts an array of n elements in O(n²) time in the worst case. In this worst case, quicksort is slow, but the average execution time is O(n log n), which is very efficient, and the constant factor hidden in O(n log n) is very small. …

About Heap In a previous post, I introduced heap sort, which is a sort that uses heaps. Although heapsort is a good algorithm, a great implementation of quicksort, which we’ll discuss later, is usually quicker. …

From now on, I’m going to start TIL on Introduction to Algorithms. We’ll look at why this book starts with sorting algorithms, and I’ll go through heap and heap sorting. Why sorting algorithms? Sorting is considered by many computer scientists to be the most fundamental topic in the algorithmic study. …

What is an Algorithm? An algorithm, in simple words, is a well-defined computational technique that takes a value or set of values as input and outputs another value or collection of values. As a result, an algorithm can be defined as a set of computations that turns an input into an output. Algorithms can…