algorithms

Quicksort is a highly efficient algorithm for searching and sorting arrays in JavaScript. It makes use of recursion, which involves calling a function from within the same function. This technique helps streamline the search process and improve performance. Generally, Quicksort outperforms other algorithms like selection sort, especially in scenarios where the data set is large. The algorithm’s time complexity is generally O(n log n), which falls between O(n) and O(n^2). However, it’s worth noting that in the worst-case scenario, Quicksort can take the same time as selection sort, resulting in a time complexity of O(n^2)....

Binary search is an efficient algorithm used to search for an item in an ordered array or any other ordered data structure. It reduces the search space by half with each iteration, making it a highly optimized search algorithm. To perform a binary search, follow these steps: Start with the ordered array and the item you need to search for. Calculate the middle index of the array by dividing the number of elements by 2....

In the world of computer science, the linear search algorithm, also known as sequential search or simple search, holds a significant position. As one of the most fundamental search algorithms, it allows us to locate an item within a data structure, such as an array, by examining each element until a match is found. The implementation of the linear search algorithm is remarkably straightforward: const linearSearch = (list, item) => { for (const [i, element] of list....

Merge sort is a popular sorting algorithm that utilizes the “divide and conquer” approach. In this algorithm, an array is divided into two halves recursively until each half contains only one element. Then, the sorted subarrays are merged to form a single sorted array. Let’s take an example to understand how merge sort works. Suppose we have an array: [4, 3, 1, 2] We first divide the array into two halves:...

Sorting an array of numbers by element size is a common task in programming. One approach to achieve this is by using the selection sort algorithm. The selection sort algorithm works by repeatedly finding the minimum element from the unsorted part of the array and moving it to the beginning. The steps involved in the algorithm are as follows: We start by selecting the first element of the array. We then compare this element with the second element....

I have a strong dislike for programming job interview questions. They always seem so difficult, and I often wonder why that is the case. If you have ever used platforms like HackerRank or read books on coding interview questions, you’ll likely agree with me. The coding interview industry has grown enormously and preparation for these interviews has become a whole new field. Personally, I despise them. Not everyone on the internet shares my sentiment though....