[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…

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…

［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…

突然很想刷刷题,LeetCode是一个不错的选择,忽略了输入输出,更好的突出了算法,省去了不少时间. dalao们发现了任何错误,或是代码无法通过,或是有更好的解法,或是有任何疑问和建议的话,可以在对应的随笔下面评论区留言,我会及时处理,在此谢过了. 过程或许会很漫长,也很痛苦,慢慢来吧. 编号 题名 过题率 难度 1 Two Sum 0.376 Easy 2 Add Two Numbers 0.285 Medium 3 Longest Substring Without Repeating C…

1. 496. Next Greater Element I 暴力的话,复杂度也就1000 * 1000 = 1e6, 在1s的时限内完全可以. 当然,有许多优化方法,利用stack维护递减序列的方法, 见这里http://bookshadow.com/weblog/2017/02/05/leetcode-next-greater-element-i/ 2. 506. Relative Ranks 这个是水题,直接排序,处理一下边界问题,输出就可以. class Solution { publi…