Given a 2D integer array matrix, return the transpose of matrix.
The transpose of a matrix is the matrix flipped over its main diagonal, switching the matrix’s row and column indices.
Example 1:
Input: matrix = [[1,2,3],[4,5,6],[7,8,9]] Output: [[1,4,7],[2,5,8],[3,6,9]]
Example 2:
Input: matrix = [[1,2,3],[4,5,6]] Output: [[1,4],[2,5],[3,6]]
Constraints:
m == matrix.lengthn == matrix[i].length1 <= m, n <= 10001 <= m * n <= 105-109 <= matrix[i][j] <= 109
class Solution {
public int[][] transpose(int[][] matrix) {
int row = matrix.length;
int col = matrix[0].length;
int[][] ans = new int[col][row];
for(int i=0;i<row;i++){
for(int j=0;j<col;j++){
ans[j][i] = matrix[i][j];
}
}
return ans ;
}
}
Office:- 660, Sector 14A, Vasundhara, Ghaziabad, Uttar Pradesh - 201012, India
