You are developing an online game where 2 users can play against each other. We want to create a service which will match users with similar ranks so th…

You are given a series of packages arranged on a conveyor belt. Each package has a specific weight, represented by the array weights , where the i th el…

Edit distance between 2 strings with dictionary-based cost This is a classic edit-distance variant where transforming one string into another uses inser…

You are working for a local supply company. You have shelves of the same width shelf_width and several types of boxes with widths box_widths[] . You’re…

There are people in a line filming a TikTok. You are given an integer array heights of size n that represents the heights of the people in the line. The…

Calculate the Largest Island in a 2D Integer Array Question description Suppose there is an n * n two-dimensional image, where 1 represents "land&q…

Maximum Subarray Given an integer array nums , find the subarray with the largest sum, and return its sum. Input: nums = [-2,1,-3,4,-1,2,1,-5,4] Output:…

Version Sort Versions is a version number list for a project. Because many people maintain it, the format is irregular. Given an array of version string…

Title Evaluate Division Question description You are given an array of variable pairs equations and an array of real numbers values, where equations[i]…

Build a React app that displays a counter starting at 0 . Requirements: Show the text You clicked {count} times . Render a button labeled Click Me . Whe…

Given an array of positive integers nums and an integer k , return true if nums has a continuous subarray whose sum equals k . Examples: nums = [1,2,3,4…

Question 1: You are given two arrays with positive integers arr1 and arr2 . A prefix of a positive integer is an integer formed by one or more of its di…

Given an unsorted array of integers nums , return the length of the longest consecutive elements sequence. You must write an algorithm that runs in O(n)…

Q: Implement sum() so that the following expressions evaluate correctly: sum(1, 2, 3).sumOf(); // 6 sum(2, 3)(2).sumOf(); // 7 sum(1)(2)(3)(4).sumOf();…

Problem Description Input: N (1-20) Requirement: Count how many numbers with at most N digits do not contain consecutive digit 6 s. Example: 2, 0~99, in…

You are to build a simple key-value store for storing integers (keys are strings, values are integers) and a global version number (integer). You will n…

Two strings are said to be similar if they are composed of the same characters. For example, “abaca” and “cba” are similar since both of them are compos…

Given an array A and a number b. Return a reordered array such that all numbers before b are smaller than or equal to b, and all numbers after b are gre…

Calculate the IoU filter during detecting. Question description Input = [[x, y, width, length, label, conf], …] This problem asks you to filter detect…

We have Uber HCV (High Capacity Vehicles) plying on the same routes in loops. Every route has a certain number of stops. The routes are represented as a…