Given a matrix of M x N elements (M rows, N columns), return all elements of the matrix in diagonal order as shown in the below image. Example: Input: [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9 ] ] Output: [1,2,4,7,5,3,6,8,9] Explanation: Note: The total…

[LeetCode]498. Diagonal Traverse 解题报告(Python) 标签(空格分隔): LeetCode 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址:https://leetcode.com/problems/diagonal-traverse/description/ 题目描述: Given a matrix of M x N elements (M rows, N columns), ret…

［抄题］: Given a matrix of M x N elements (M rows, N columns), return all elements of the matrix in diagonal order as shown in the below image. Example: Input: [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9 ] ] Output: [1,2,4,7,5,3,6,8,9] Explanation: [暴力解法]: 时间…

详见:https://leetcode.com/problems/diagonal-traverse/description/ C++: class Solution { public: vector<int> findDiagonalOrder(vector<vector<int>>& matrix) { if (matrix.empty() || matrix[0].empty()) { return {}; } int m = matrix.size(),…

题目思路 题目来源 C++实现 class Solution { public: vector<int> findDiagonalOrder(vector<vector<int>>& matrix) { if(matrix.empty()) { return {}; } vector<int> result; bool fromUp = false; /* false 自下而上 ture 自上而下*/ int a = 0; int b = 0; //…

对角线遍历 给定一个含有 M x N 个元素的矩阵(M 行,N 列),请以对角线遍历的顺序返回这个矩阵中的所有元素,对角线遍历如下图所示. Given a matrix of M x N elements (M rows, N columns), return all elements of the matrix in diagonal order as shown in the below image. 示例: 输入: [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9…

Given a matrix of M x N elements (M rows, N columns), return all elements of the matrix in diagonal order as shown in the below image. Example: Input: [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9 ] ] Output: [1,2,4,7,5,3,6,8,9] Explanation: Note: The total…

Given a matrix of M x N elements (M rows, N columns), return all elements of the matrix in diagonal order as shown in the below image. Example: Input: [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9 ] ] Output: [1,2,4,7,5,3,6,8,9] Explanation: Note: The total…

这题难度中等,记录下思路 第一个会超时, 第二个:思想是按斜对角线行进行右下左上交替遍历, def traverse(matrix): n=len(matrix)-1 m=len(matrix[0])-1 result=[] for i in range(m+n+1): if(i % 2 == 0): for j in range(i, -1, -1): x=j y=i-x if x <= n and y <= m: result.append(matrix[x][y]) # elif y &…

498. 对角线遍历 给定一个含有 M x N 个元素的矩阵(M 行,N 列),请以对角线遍历的顺序返回这个矩阵中的所有元素,对角线遍历如下图所示. 示例: 输入: [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9 ] ] 输出: [1,2,4,7,5,3,6,8,9] 解释: 说明: 给定矩阵中的元素总数不会超过 100000 . PS: 对角线的特点就是x+y相等 class Solution { public int[] findDiagonalOrder(int…