Given an integer n, generate a square matrix filled with elements from 1 to n^2 in spiral order. For example,Given n = 3, You should return the following matrix: [ [ 1, 2, 3 ], [ 8, 9, 4 ], [ 7, 6, 5 ] ] 与 54. Spiral Matrix 类似,这次给定一个整数n,以螺旋顺序填充元素到n^2…

1. 原题链接 https://leetcode.com/problems/spiral-matrix-ii/description/ 2. 题目要求 给定一个正整数n,求出从1到n平方的螺旋矩阵.例如n为3,构成的螺旋矩阵如下图所示 3. 解题思路 该题与54题Spiral Matrix的解题思路大致相同,同样是一个while循环内,确定螺旋矩阵一个圈上的所有元素. 采用一个计数器count,count初始为1,每确定一个位置上的元素,count加1, 4. 代码实现 public class…

原题地址 相比于Spiral Matrix(参见这篇文章)要简单一些,因为是方阵,所以代码简洁一些. 注意当n是奇数的时候,中心小块要单独赋值(代码21行) 代码: vector<vector<int> > generateMatrix(int n) { vector<vector<)); ; ; ; ; ) { ; k < len; k++) matrix[i][j++] = count++; ; k < len; k++) matrix[i++][j]…

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 ] ] 题目标签:Array 这道题目和之前的螺旋矩阵几乎没有区别,而且更简单.同样按照螺旋矩阵的特性…

Given a positive integer n, generate a square matrix filled with elements from 1 to n^2 in spiral order. Example: Input: 3 Output: [ [ 1, 2, 3 ], [ 8, 9, 4 ], [ 7, 6, 5 ] ] 题意: 给定n, 把1至n ^ 2所有的数,按照螺旋顺序填入方阵. code /* Time: O(n^2) Space: O(n^2) */ class…

54. Spiral Matrix [Medium] Description Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order. Example 1: Input: [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9 ] ] Output: [1,2,3,6,9,8,7,4,5] Example 2: Input:…

54题是把二维数组安卓螺旋的顺序进行打印,59题是把1到n平方的数字按照螺旋的顺序进行放置 54. Spiral Matrix start表示的是每次一圈的开始,每次开始其实就是从(0,0).(1,1)这种开始的. 用endx.endy来表示每次转圈的x.y方向的终止位置,方便后面进行边界条件设置. 注意:后面start < endx && start < endy.start < endy && start < endx-1都必须同时满足x.y的条…

Leetcode59 Spiral Matrix II 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 ] ]回型打印整数n.Tips: dr dc…

Spiral Matrix II 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 ] ]   与Spiral Matrix类似:   class So…

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 ]] 解题思路: 参考Java for LeetCode 054 Spiral Matrix,修改下…