Category: algorithms
According to the definition of tree on Wikipedia: “a tree is an undirected graph in which any two vertices are connected by exactly one path. In other words, any …
Given an array, we want to shuffle it (to make it random), so that every possible random solution gets evenly-distributely possibility. One may quickly write a solution like this, …
Write a program to find the node at which the intersection of two singly linked lists begins. For example, the following two linked lists: begin to intersect at node …
S and T are strings composed of lowercase letters. In S, no letter occurs more than once. S was sorted in some custom order previously. We want to permute …
A character in UTF8 can be from 1 to 4 bytes long, subjected to the following rules: For 1-byte character, the first bit is a 0, followed by its …
