Then one task to code in online editor:
1.I had simple task for DFS: Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number. Find the total sum of all root-to-leaf numbers.
2. Given a grouping of Amazon Objects, where an Amazon Object has a name, a unique identifier, a number of clicks, and a category, can you write a function that returns the Top N
items in each category?
3. Find all files in filesystem which size is greater then 5 mb.
4. TinyUrl system design.

Question

Then one task to code in online editor: 
1.I had simple task for DFS: Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number. Find the total sum of all root-to-leaf numbers.
2. Given a grouping of Amazon Objects, where an Amazon Object has a name, a unique identifier, a number of clicks, and a category,  can you write a function that returns the Top N 
items in each category?
3.  Find all files in filesystem which size is greater then 5 mb.
4. TinyUrl system design.

Anonymous · Accepted Answer

Resolve as many task on data structures and algorithms as you can

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