顺时针打印矩阵_牛客题霸

输入一个矩阵，按照从外向里以顺时针的顺序依次打印出每一个数字，例如，如果输入如下4 X 4矩阵： [[1,2,3,4], [5,6,7,8], [9,10,11,12], [13,14,15,16]] 则依次打印出数字 [1,2,3,4,8,12,16,15,14,13,9,5,6,7,11,10] 数据范围: 0 0

示例1

输入

[[1,2,3,4],[5,6,7,8],[9,10,11,12],[13,14,15,16]]

输出

[1,2,3,4,8,12,16,15,14,13,9,5,6,7,11,10]

示例2

输入

[[1,2,3,1],[4,5,6,1],[4,5,6,1]]

输出

[1,2,3,1,1,1,6,5,4,4,5,6]