The “Hamilton cycle problem” is to find a simple cycle that contains every vertex in a graph. Such a cycle is called a “Hamiltonian cycle”.
In this p[……]
Stay hungry, stay foolish.
The “Hamilton cycle problem” is to find a simple cycle that contains every vertex in a graph. Such a cycle is called a “Hamiltonian cycle”.
In this p[……]
John got a full mark on PAT. He was so happy that he decided to hold a raffle(抽奖) for his followers on Weibo — that is, he would select winners from e[……]
Recommendation system predicts the preference that a user would give to an item. Now you are asked to program a very simple recommendation system that[……]
The “eight queens puzzle” is the problem of placing eight chess queens on an 8×8 chessboard so that no two queens threaten each other. Thus, a solutio[……]
Two integers are called “friend numbers” if they share the same sum of their digits, and the sum is their “friend ID”. For example, 123 and 51 are fri[……]
“Damn Single (单身狗)” is the Chinese nickname for someone who is being single. You are supposed to find those who are alone in a big party, so they can[……]
The basic task is simple: given N real numbers, you are supposed to calculate their average. But what makes it complicated is that some of the input n[……]
Given some segments of rope, you are supposed to chain them into one rope. Each time you may only fold two segments into loops and chain them into one[……]
Suppose that all the keys in a binary tree are distinct positive integers. A unique binary tree can be determined by a given pair of postorder and ino[……]
A supply chain is a network of retailers(零售商), distributors(经销商), and suppliers(供应商)– everyone involved in moving a product from supplier to customer.[……]