Search Results for: programming
Write a function that takes an unsigned integer and returns the number of ’1′ bits it has (also known as the Hamming weight). For example, the 32-bit integer ’11′ …
Given a binary tree root, return whether it’s a binary search tree. A binary tree node is a binary search tree if : All nodes on its left subtree …
Write a SQL query to get the nth highest distinct salary from the Employee table. +----+--------+ | Id | Salary | +----+--------+ | 1 | 100 | | 2 …
Write an algorithm to determine if a number is “happy”. A happy number is a number defined by the following process: Starting with any positive integer, replace the number …
A Singly Linked List is a one-direction List that uses a pointer to connect between Nodes. To reverse a linked list, you need to re-connect the directions, for example: …