SCUT_Pein

Consider the following exercise, found in a generic linear algebra textbook.Let A be an n × n matrix. Prove that the following statements are equivalent:A is invertible.Ax = b has exactly one so

You have matrix a of size n × n. Let's number the rows of the matrix from 1 to n from top to bottom, let's number the columns from 1 to nfrom left to right. Let's use aij to represent the elem

DescriptionBeing a knight is a very attractive career: searching for the Holy Grail, saving damsels in distress, and drinking with the other knights are fun things to do. Therefore, it is not very

DescriptionIn order to get from one of the F (1 <= F <= 5,000) grazing fields (which are numbered 1..F) to another field, Bessie and the rest of the herd are forced to cross near the Tree of Rotte

DescriptionIt's almost summer time, and that means that it's almost summer construction time! This year, the good people who are in charge of the roads on the tropical island paradise of Remote

DescriptionA rooted tree is a well-known data structure in computer science and engineering. An example is shown below:  In the figure, each node is labeled with an integer from {1, 2,...,16

DescriptionEvery cow's dream is to become the most popular cow in the herd. In a herd of N (1 <= N <= 10,000) cows, you are given up to M (1 <= M <= 50,000) ordered pairs of the form (A, B) that t

Tarjan应用:求割点/桥/缩点/强连通分量/双连通分量/LCA(最近公共祖先)作者提示：在阅读本文之前，请确保您已经理解并掌握了基本的Tarjan算法，不会的请到http://hi.baidu.com/lydrainbowcat/blog/item/42a6862489c98820c89559f3.html阅读。 基本概念： 1.

Problem B: The Largest CliqueGiven a directed graph G, consider the following transformation. First, create a new graphT(G) to have the same vertex set asG. Create a directed edge between two ve