matrix ringtone

http://acm.hdu.edu.cn/showproblem.php?pid=5015 Because it was a two-dimensional recursive type, it was not possible to construct a matrix like this. From the column, the current column is recursively given by the previous column. The matrix is constructed according to this point. B[i] stands for column I, is a (n+2) * * Matrix, that is, b[1] = [1,233 ...], the r

C. Score matrix question description and solution; score matrix question Solution Score MatrixDescription We define the following matrix: 1/1 1/2 1/3 1/2 1/1 1/2 1/3 1/2 1/1 The elements on the diagonal line of the matrix are always 1/1, and the denominator of the scores on both sides of the diagonal line increase

51. 52 single-chip microcomputer matrix keyboard, 5152 single-chip microcomputer Matrix To learn about the matrix keyboard, first make a small experiment: After you press the matrix keyboard, the digital display displays the number of keys that are pressed. My matrix keyboar

Question link: http://acm.hdu.edu.cn/showproblem.php? PID = 1, 4965 Give you a n * k matrix A and a k * n matrix B (4 Calculate a new matrix C = a * B Calculate M = C ^ (N * n) For each element % 6 in m Add each element in m to calculate the sum. That is, find a * B *...... * A * B but a * B forms a matrix of N

Uva442 matrix chain multiplication (matrix chain multiplication) Link: uva442Description: Enter n matrix dimensions and a matrix chain multiplication expression. The number of multiplication times is output. If multiplication cannot be performed, an error is output.Question Analysis:Stack has a special role in expressi

Matrix Power Series Time limit:3000 Ms Memory limit:131072 K Total submissions:15417 Accepted:6602 Description GivenN×NMatrixAAnd a positive integerK, Find the sumS=A+A2 +A3 +... +AK. Input The input contains exactly one test case. The first line of input contains three positive integersN(N≤ 30 ),K(K≤ 109) andM(MNLines each containingNNonnegative integers below 32,768, givingA'S elements in row-Major Order. Outpu

Question 1164: rotation matrix, 1164: rotation matrix Description: Any input of two matrices lower than 9 must determine whether the second is the first rotation matrix. If yes, the output rotation angle (0, 90, 180, 270). If not, output-1.You must first enter the matrix order, and then enter two matrices.

Question: Find the sum of K * I + B in Fibonacci. Train of Thought Analysis: Defines the matrix of the Fibonacci series F (n) is the nth entry of Fibonacci F (n) = f (n + 1) F (N) Then we can know the matrix. A = 1 1 1 0 Make F (n) = A * F (n + 1) Then we simplify the final answer. Sum = F (B) + f (K + B) + F (2 * k + B ).... Sum = F (B) + A ^ k f (B) + A ^ 2 k f (B )..... Sum = (E + A ^ K + A ^ 2 k...)

MAX7219 lattice module can be used with three data lines to achieve 8*8 led lattice control, and do not need to participate in the scanning of single-chip computer, the use is very convenient. More importantly, it supports the use of modular cascade, without increasing the number of IO, the implementation of multi-module control. Therefore, in the large-screen meter, the use of 3 MAX7219 lattice modules into a 8*24 lattice screen.The use of dot matrix

In vb.net, a matrix can be represented simply by an array , which can be represented by classes (Class) for more functionality.Mathematical definition of matrices: number of M rows n columns by m*n Public ClassMatrixPrivateTabledata (,) as Double PrivateRowlength, Collength as Integer 'the length of the matrix Public ReadOnly PropertyRow ()Get ReturnRowlengthEnd Get End Prope

Problem Descriptiongiven, matrices A and B of size nxn, find the product of them.Bobo hates big integers. So is only asked to find the result modulo 3.Inputthe input consists of several tests. For each tests:The first line contains N (1≤n≤800). Each of the following n lines contain n integers-the description of the matrix A. The j-th integer in the i-th line equals Aij. The next n lines describe the matrix

Given an integer n, generate a square matrix filled with elements from 1 to N2 in Spiral order.For example,Given n = 3,You should return the following matrix:[[1, 2, 3],[8, 9, 4],[7, 6, 5]]Idea: This problem and spiral matrix problem is similar, there is no difficult place, mainly is the conversion of four directions.The specific code is as follows:public class S