Microsoft Onsite Interview has tree times. So had tree coding questions.\n\nFirst coding question is [1315. Sum of Nodes with Even-Valued Grandparent](https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent/)\n\nSecond coding question is [239. Sliding Window Maximum](https://leetcode.com/problems/sliding-window-maximum/)\n\nLast coding questions:\nGive an array of time  **when will the next bus arrive** of a station.\nGet the **Minimal** bus number of this road. These station are in a road.\n\neg.\n```\ninput: [1, 2, 3, 4, 5]\noutput: 1\n```\n\n

Microsoft Onsite Interview has tree times. So had tree coding questions.\n\nFirst coding question is 1315. Sum of Nodes with Even-Valued Grandparent\n\nSecond c