TransposeMatrix867.kt

package easy

/**
 * 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.length
n == matrix[i].length
1 <= m, n <= 1000
1 <= m * n <= 105
-109 <= matrix[i][j] <= 109
 */

fun transpose(matrix: Array<IntArray>): Array<IntArray> {
    val m = matrix.size
    val n = matrix[0].size

    val result = Array(n){IntArray(m)}

    for( i in 0 until m)
    {
        for(j in 0 until n)
        {
            result[j][i]=matrix[i][j]
        }
    }
return  result
}