text: const findDuplicateSubtrees = require('./01')
  const { arrayToTreeNode1, treeNodeToArray } = require('../../utils')
  
  test('1', () => {
    const root = arrayToTreeNode1([1, 2, 3, 4, null, 2, 4, null, null, 4])
    const a = findDuplicateSubtrees(root)
    console.info(a)
  })
  