Neural Ninjas · DSA Simulation Labs · Lab 18

🚇 The Double-Ended Tube

Bigger numbers eject every smaller one from the back before entering — they're useless now. Old numbers get ejected from the front the moment the window outgrows them. The front always holds the window's max.

Deque Log

Controls

🚇 DequeFront to back, I only ever hold decreasing values. Whoever's at my front right now is the biggest number still in play.
🪟 WindowI slide forward one step at a time. Anything I've left behind gets kicked out the front — it's not my problem anymore.
Pick a level above to begin.