symmetricalMatrix

Given a square matrix of integers, your task is to determine whether or not it’s symmetric along its main diagonal.

Example

• For 
matrix = [[0,1,2],
          [1,5,3],
          [2,3,4]], the output should be symmetricalMatrix(n, matrix) = true.

  This matrix is symmetric along the main diagonal!

• For 
  matrix = [[0,0,0],
          [0,0,0],
          [1,0,0]], the output should be symmetricalMatrix(n, matrix) = false.

  This matrix is not symmetric (the 0 and 1 don’t match up).

Input / Output

• [execution time limit] 1 seconds 

• [input] integer n

  An integer representing the number of rows and columns in the matrix.

  Guaranteed constraints:
  1 ≤ n ≤ 100

• [input] an array of integers

  A square matrix of integers.

  Guaranteed constraints:
  matrix.length = n
matrix[i].length = n
0 ≤ matrix[i][j] ≤ 104

• [output] boolean

  • Return true if matrix is symmetric along the main diagonal, and false otherwise.