Leetcode59-螺旋矩阵 II
二维数组的初始化方法： matrix = [[0] * n for _ in range(n)]
和螺旋数组一样的思路
代码：def generateMatrix(n): matrix = [[0] * n for _ in range(n)] left, right = 0, n - 1 top, botton = 0, n - 1 elements = [] index = 0 for i in range(1, n * n + 1): elements.append(i) while True: for i in range(left, right + 1): matrix[top][i] = elements[index] index += 1 top += 1 if top > botton: break for i in range(top, botton + 1): matrix[i][right] = elements[index] index += 1 right -= 1 if left > right: break for i in range(right, left - 1, -1): matrix[botton][i] = elements[index] index += 1 botton -= 1 if top > botton: break for i in range(botton, top - 1, -1): matrix[i][left] = elements[index] index += 1 left += 1 if left > right: break return matrix
123456789101112131415161718192021222324252627282930313233343536'
