what is nan function, do you know oop
Lead Backend Developer Interview Questions
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What do you know about Magic Labs?
Notifications have to be sent through a SMTP Cluster, which has limit capacity of 1000/second. Ordering system requires latency below 5 seconds, and has peak TPS 500/second. Ship confirm requires latency below 24 hours, and has peak TPS 500/second. Flash sales requires latency below 2 hours, need to be sent 2/3 times per week, 1MM customers each time. Invoicing requires latency below 72 hours; Peak TPS 500/second
Invert the order of words in a string in C++
An Architecture problem A Coding Challenge (Database design, String manipulation, testing, efficiency)
Given two binary numbers as strings, return their sum as a binary string
DS/Algo design
DS/Algo
1) Implement an in-memory file system. 2) What kinds of time complexities involved. 3) How would I implement it as an API on something like AWS. 4) How would I load test it.
Count word frequency of strings
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