Checkpoint8 min
Stack Checkpoint
Monotonic stack invariants, when to pop, and recognizing next-greater phrasing.
Question 1 of 7
You push 3, then 8, then 5 onto an empty stack, then pop twice. What is on top now?
Monotonic stack invariants, when to pop, and recognizing next-greater phrasing.
You push 3, then 8, then 5 onto an empty stack, then pop twice. What is on top now?