867 转置矩阵

867 转置矩阵

class Solution {
    public int[][] transpose(int[][] A) {
        int[][] ans = new int[A[0].length][A.length];
        for(int i = 0; i < A.length; i++)
            for (int j = 0; j < A[0].length; j++)
                ans[j][i] = A[i][j];
        return ans;
    }
}