**Questions**:3\n**Duration**:60 Minutes\n**Difficulty**: Medium \n![image](https://assets.leetcode.com/users/images/e10187dc-be0d-414d-97eb-1f393b3ddbee_1601894496.1901164.png)\n![image](https://assets.leetcode.com/users/images/b529d927-73cc-4ecd-b0d7-49f73d431f49_1601894496.1611762.png)\n![image](https://assets.leetcode.com/users/images/8c168cc0-c168-4840-82bc-d4c3e9e74748_1601894496.3306665.png)\n![image](https://assets.leetcode.com/users/images/977ca3d7-7f59-4ad6-8860-2b0662e59394_1601894496.306482.png)\n![image](https://assets.leetcode.com/users/images/645c9a5d-5bc7-4764-aa6a-a2e9b00896a5_1601894496.3879435.png)\n![image](https://assets.leetcode.com/users/images/f56f7cd6-3449-4cc9-86d8-e9d6b1c24889_1601894496.4667056.png)\n![image](https://assets.leetcode.com/users/images/5251bbed-6e5b-4c05-82bd-645e58e0ee4e_1601894496.4661667.png)\n![image](https://assets.leetcode.com/users/images/938efdd1-3366-43d3-ad87-5718c663c1e4_1601894496.4948037.png)\n![image](https://assets.leetcode.com/users/images/9c3af9c8-298e-449b-bed2-9105f4548626_1601894497.0013459.png)\nPS: I have registed for several online assessment please upvote as it will encourage me to upload more such posts\n

Questions:3\nDuration:60 Minutes\nDifficulty: Medium \n\n\n\n\n\n\n\n\n\nPS: I have registed for several online assessment please upvote as it will encourage me