矩阵的转置是指将矩阵的主对角线翻转,交换矩阵的行索引与列索引。
示例 1:
输入:[[1,2,3],[4,5,6],[7,8,9]]
输出:[[1,4,7],[2,5,8],[3,6,9]]
示例 2:
输入:[[1,2,3],[4,5,6]]
输出:[[1,4],[2,5],[3,6]]
提示:
1 <= A.length?<= 1000
1 <= A[0].length?<= 1000
题解:
class Solution867 { public int[][] transpose(int[][] A) { int row=A.length; int column=A[0].length; int[][] B=new int[column][row]; for (int i = 0; i < row; i++) { for (int j = 0; j < column; j++) { B[j][i]=A[i][j]; } } return B; } }
原文:https://www.cnblogs.com/wn9527/p/13633062.html