Class SumInfo

binary-trees/range-sum-of-bst.js:16–20

* @param {TreeNode} root * @param {number} low * @param {number} high * @return {number}

 */

class SumInfo {
  constructor() {
    this.sum = 0;
  }
}
var rangeSumBST = function (root, low, high) {
  const sum = new SumInfo();
  getSumHelper(root, low, high, sum);