Tip 1 : Solve basic data structure problems
Tip 2 : HOW AND WHERE TO USE CACHE< LB and DB
Tip 1 : Mention Data structure, problem solving in your CV, if you are applying from service based org
Tip 2 : Mention only those products for which you have fair understanding



a. First row(left to right)
b. Last column(top to bottom)
c. Last row(right to left)
d. First column(bottom to top)

1. First Explained the solution using 2 stacks.
2. Interviewer wants to optimize space and asked me to use some other data structure instead of stack
3. Used Deque/ Doubly Link list
4 Wrote production ready code



7
/ \
7 7
/ \ \
8 3 7
1. Explained the approach
2. Interviewer asked the time complexity
3. Then asked to write code
4. Verified different use cases




1. Asked to write the code
2. Asked to dry run the code
3. Tried running the code
Design LRU
Tip 1 : Explain what is LRU
Tip 2 : Explain with example
Tip 3 : Write runnable code
design paste bin
Tip 1 : Write down P1 requirements
Tip 2 : Write down different components
Tip 3 : Take each P1 requirement one by one
Discuss about current work ex
Asked to solve one design problem
- There are certain services running on cloud to process images
- You are uploading heavy image. How these images will be processed
Tip 1 : Discuss different possible solutions coming to your mind
Tip 2 : Interviewer will give you hint which approach is correct
Tip 3 : This round is mainly a discussion round

Here's your problem of the day
Solving this problem will increase your chance to get selected in this company
How do you remove whitespace from the start of a string?