CS fundamentals and algorithmsTikTok
Recursion and stack limits
You're recursively walking a nested JSON document thousands of levels deep, and it crashes only on a background thread. What's the cause?
Recursion and stack limits
You're recursively walking a nested JSON document thousands of levels deep, and it crashes only on a background thread. What's the cause?
CS fundamentals and algorithmsShort answerBasics
Can you compare merge sort and quicksort: how each works, and their time and space comple…
#merge-sort
CS fundamentals and algorithmsShort answerAdvanced
You're given a specific UIView instance in an original view hierarchy, plus a copy of tha…
#recursion
NetworkingShort answerBasics
This is a senior iOS virtual onsite, live coding. You have to build, without searching, a…
#json
SwiftShort answerAdvanced
The server's JSON uses snake_case keys, and dates come as strings like "2026-09-11T10:00:…
#json