867. Transpose Matrix

二刷 08/2022

Version #1 Iteration

Time O(MN)

Space O(1)

Runtime: 1 ms, faster than 71.40% of Java online submissions for Transpose Matrix.

Memory Usage: 49.1 MB, less than 7.81% of Java online submissions for Transpose Matrix.

class Solution {

    public int[][] transpose(int[][] matrix) {

        int[][] result = new int[matrix[0].length][matrix.length];

        for (int y = 0; y < matrix.length; y++) {

            for (int x = 0; x < matrix[0].length; x++) {

                result[x][y] = matrix[y][x];

            }

        }

        return result;

    }

}

一刷

Straightforward

53.97 %
class Solution {
    public int[][] transpose(int[][] A) {
int[][] result = new int[A[0].length][A.length];
for (int y = 0; y < A.length; y++) {
for (int x = 0; x < A[0].length; x++) {
result[x][y] = A[y][x];
}
}
return result;
}
}