problem 766. Toeplitz Matrix solution1: class Solution { public: bool isToeplitzMatrix(vector<vector<int>>& matrix) { ; i<matrix.size()-; ++i) { ; j<matrix[].size()-; ++j) { ][j+]) return false; } } return true; } }; 参考 1. Leetcode_e…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 方法一:两两比较 方法二:切片相等 方法三:判断每条对角线 日期 题目地址:https://leetcode.com/problems/toeplitz-matrix/description/ 题目描述 A matrix is Toeplitz if every diagonal from top-left to bottom-right has t…

problem 867. Transpose Matrix solution: class Solution { public: vector<vector<int>> transpose(vector<vector<int>>& A) { ].size(); vector<vector<int>> res(n, vector<int>(m));//err... ; i<m; ++i) { ; j<n;…

package y2019.Algorithm.array; /** * @ProjectName: cutter-point * @Package: y2019.Algorithm.array * @ClassName: IsToeplitzMatrix * @Author: xiaof * @Description: 766. Toeplitz Matrix * A matrix is Toeplitz if every diagonal from top-left to bottom-ri…

[题解]Sonya and Matrix Beauty [Codeforces1080E] 传送门:\(Sonya\) \(and\) \(Matrix\) \(Beauty\) \([CF1080E]\) [题目描述] \(Sonya\) 最近过了生日,她收到一个 \(n \times m\) 的字符矩阵. 我们称一个子矩阵是美丽的,当且仅当在重新排列这个子矩阵每一行的字符后,使得这个子矩阵的每一行每一列都是回文串. \(Sonya\) 想要知道这个矩阵中有几个子矩阵是美丽的. (给定一个 \…

Question 766. Toeplitz Matrix Solution 题目大意: 矩阵从每条左上到右下对角线上的数都相等就返回true否则返回false 思路: 遍历每一行[i,j]与[i+1,j+1]是否相等,不等就返回false,相等就接着遍历,都遍历完了就返回true Java实现: public boolean isToeplitzMatrix(int[][] matrix) { int i = 0; while (i < matrix.length - 1) { int j =…

[论文标题]Sparse Probabilistic Matrix Factorization by Laplace Distribution for Collaborative Filtering     (24th-IJCAI ) (Proceedings of the Twenty-Fourth International Joint Conference on Artificial Intelligence (IJCAI 2015) ) [论文作者]Liping Jing, PengWa…

[论文标题]Local Low-Rank Matrix Approximation (icml_2013 ) [论文作者]Joonseok Lee,Seungyeon Kim,Guy Lebanon ,Yoram Singer [论文链接]Paper (9-pages // Double column) [摘要] 矩阵近似是推荐系统.文本挖掘和计算机视觉的常用工具.构造矩阵近似的一个普遍假设是,部分观察到的矩阵是低秩的.我们提出了一个新的矩阵近似模型,我们假设这个矩阵是局部的低秩矩阵,这就导致了…

[题干描述] Given a matrix A, return the transpose of A. The transpose of a matrix is the matrix flipped over it's main diagonal, switching the row and column indices of the matrix.(一矩阵A,返回其转置) [思路] 直接处理,A[i][j]的值赋值给output[j][i]. [python代码] input = [[1, 2…

http://poj.org/problem?id=3422 (题目链接) 题意 N*N的方格,每个格子中有一个数,寻找从(1,1)走到(N,N)的K条路径,使得取到的数的和最大. Solution 同[codevs1277] 方格取数 代码 // poj3422 #include<algorithm> #include<iostream> #include<cstring> #include<cstdlib> #include<cstdio>…