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She Wrote It: The 27-Page File Opened Once in Three Years

Part 1/2 Recursion & Call Stack - Data structures and algorithms explained This function is the simplest example of recursion we can have… BUT, the placement of the print statements really tests your understanding of how recursive code evaluates. 🧠 ANSWER: foo 3 foo 2 foo 1 bar 1 bar 2 bar 3 👀 Did you get it right? In this deceptively simple code snippet, most software engineers know that the foo’s will count down 3..2..1 but far less know that the bar’s will count up 1..2..3. This behavior st