867. 转置矩阵
public class Solution
{
public int[][] Transpose(int[][] matrix)
{
var rows = matrix.Length;
var cols = matrix[0].Length;
var ret = new int[cols][];
for (var i = 0; i < cols; i++)
{
ret[i] = new int[rows];
for (var j = 0; j < rows; j++)
ret[i][j] = matrix[j][i];
}
return ret;
}
}