int[][] matrix =newint[n][n]; intstart=0, end=n-1; intnum=1; while(start<end) { for(intj=start;j<end;j++) { matrix[start][j]=num; num++; } for(inti=start;i<end;i++) { matrix[i][end]=num; num++; } for(intj=end;j>start;j--) { matrix[end][j]=num; num++;...
classSolution {public: vector<vector<int> > generateMatrix(intn) { vector<int>sub(n); vector<vector<int> >ans(n, sub);// 也可以用vector<vector<int> > ans(n, vector<int>(n));if(n <1)returnans;intval =1, left =0, right = n-1, up =1, down = n-1;for(inti =0; i < ...
down = len(matrix)-1 right = len(matrix[0])-1 direct = 0 # 0: go right 1: go down 2: go left 3: go up res = [] while True: if direct == 0: for i in range(left, right+1): res.append(matrix[up][i]) up += 1 if direct == 1: for i in range(up, down+1): ...
# leetcode 59 class Solution: def generateMatrix(self, n: int) -> List[List[int]]: visited: List[List[int]] = [[False for _ in range(n)] for _ in range(n)] flag: int = 0 def next(x: int, y: int) -> Tuple[int, int]: nonlocal visited, flag actions: List[Tuple[int,...
int rows=matrix.size()-1; int cols=matrix[0].size()-1; int row=0; int col=0; while(row<=rows&&col<=cols){ for(int i=col;i<=cols;i++){ res.push_back(matrix[row][i]); } row++; for(int i=row;i<=rows;i++){
append(matrix[down][i]) down -= 1 if direct == 3: for i in range(down, up-1, -1): res.append(matrix[i][left]) left += 1 if up > down or left > right: return res direct = (direct+1) % 4 Spiral Matrix II 题目大意 将一个正方形矩阵螺旋着填满递增的数字。 解题思路 螺旋...
(matrix) if n == 0: return [] m = len(matrix[0]) ret = [] # 定义边界数组 # 边界数组和旋转的顺序也是对应的 # 第一次旋转之后上边界+1,所以第0位是上边界 # 第二次旋转之后,右边界-1 # 以此类推 condition = [0, m-1, n-1, 0] x, y, dt = 0, 0, 0 for i in range(n ...
Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order. For example, Given the following matrix: [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9 ] ] You should return [1,2,3,6,9,8,7,4,5]. ...
For example, Given n = 3, You should return the following matrix: [ [ 1, 2, 3 ], [ 8, 9, 4 ], [ 7, 6,...LeetCode 59. Spiral Matrix II 螺旋矩阵 II 给定一个正整数 n,生成一个包含 1 到 n2 所有元素,且元素按顺时针顺序螺旋排列的正方形矩阵。 示例: 输入: 3 输出: [ [ 1...
leetcode 59. Spiral Matrix II 螺旋方式写矩阵 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 ......