/*
 * @lc app=leetcode.cn id=48 lang=javascript
 *
 * [48] 旋转图像
 */

// @lc code=start
/**
 * @param {number[][]} matrix
 * @return {void} Do not return anything, modify matrix in-place instead.
 */
var rotate = function (matrix) {
  var n = matrix.length;
  for (var i = 0; i < Math.floor(n / 2); i++) {
    for (var j = 0; j < n; j++) {
      [matrix[i][j], matrix[n - i - 1][j]] = [
        matrix[n - i - 1][j],
        matrix[i][j],
      ];
    }
  }

  for (var i = 0; i < n; i++) {
    for (var j = 0; j < i; j++) {
      [matrix[i][j], matrix[j][i]] = [matrix[j][i], matrix[i][j]];
    }
  }
  return matrix;
};
// @lc code=end