Java / Collections
What is the difference between Queue and Stack?
Queue is a data structure which is based on FIFO (first in first out). e.g. in the real world, who gets into the ticket counter queue gets the ticket and leave the queue.
Stack is a data structure which is based on LIFO (last in first out). e.g. stacked plates, where we need to remove the top plates to access the plate from the middle of the plates. Also Towers of Hanoi problem is an example of stack.
Dogecoin! Earn free bitcoins up to $250 now by signing up.
Earn bitcoins upto $250 (free), invest in other Cryptocurrencies when you signup with blockfi. Use the referral link: Signup now and earn!
Using BlockFi, don't just buy crypto - start earning on it. Open an interest account with up to 8.6% APY, trade currencies, or borrow money without selling your assets.
Invest now!!! Get Free equity stock (US, UK only)!
Use Robinhood app to invest in stocks. It is safe and secure. Use the Referral link to claim your free stock when you sign up!.
The Robinhood app makes it easy to trade stocks, crypto and more.
More Related questions...