<details> \n  <summary>Question 1</summary>\n\n![image](https://assets.leetcode.com/users/sithis/image_1563098960.png)\n![image](https://assets.leetcode.com/users/sithis/image_1563098966.png)\n</details>\n\n<details> \n  <summary>Question 2</summary>\n\n![image](https://assets.leetcode.com/users/sithis/image_1563098948.png)\n</details>

 \n  Question 1\n\n![image](https://assets.leetcode.com/users/sithis/image_1563098960.png)\n![image](https://assets.leetcode.com/users/sithis/image_1563098966.p