Binary Search

The Definitive Guide Searching means locating a particular element in a collection of elements. The search result determines whether that particular element is present in the collection or not. If it is present, we can also find out the position of that element in the given collection. Searching is an…

Find element in a rotated sorted array. Ex: array = [6,7,8,9,2,3,5] target = 3 If the given array would be normal sorted array then we could easily apply binary search. An intuitive solution to this problem is to find the pivot point, In the given example its index 3. Now…

Ini merupakan seri belajar struktur data dan algoritma dengan bahasa pemrograman Dart. Apa itu Tree? Tree (pohon) didalam programming merupakan sebuah struktur data atau konsep penyimpanan data yang secara bentuk menyerupai sebuah pohon yang terbalik. Tree terdiri dari beberapa elemen yaitu sebuah root (akar) dan sekumpulan node (simpul) sehingga membentuk sub-tree (cabang). …

Kali ini, saya baru selesai mempelajari tentang algoritma Simple Search dan Binary Search. Saya akan mencoba menyampaikan atau menjelaskan apa yang sudah saya pelajari melalui tulisan ini. Sumber pembelajaran saya adalah youtube channel Indonesia Belajar milik Bapak Dosen Setia Budi yang menjadikan buku Grokking Algorithms sebagai referensi. …

Different approaches to solve this problem Approach 1: Using two for loops This function will take an array (arr) and a number (diff) as arguments (diff is the difference) Create a for loop to iterate over the array and create a temporary variable to store the sum of the current…

No need to roll your own binary search from scratch anymore Introduction Binary search is one of the most classic algorithms taught in schools and tested in interviews. It’s a very powerful tool and the concept is not difficult to grasp. However, rolling your binary search from scratch can be tricky…

Given a 2D n*n sorted matrix, find the Kth smallest element . Since the matrix is sorted, it is possible to use the binary search algorithm. We compute the mid index for the regular binary search to find the solution. But here, we alternatively apply the binary search on the…

This article is for those who want to answer binary search questions fast and easy, during a coding interview. The difficulties of binary search interview come not from the concept, but that there are so many decisions to make. Each decision in binary search may impact the others, which makes…

A tutorial on binary search on a sorted array in JavaScript. — I’m not afraid to admit that I get oddly excited about binary trees. Their search efficiency is amazing — at each step, we can eliminate half of the remaining available values. I’ve done previous posts that describe the ways that recursive functions move through a tree but today I just…