KwickClips Python · 40 sec · free
What does LIFO mean?
Short answer. Last In, First Out.
Which item can you take from a stack?
Only the top one.
Plates in, plates out
| Action | Stack | Top |
|---|---|---|
| Push red | red | red |
| Push blue | red, blue | blue |
| Pop | red | red |
Remember
| LIFO: Last In, First Out |
| Only the top is used |
Three plates stacked. Which one do you take first? The top one. Push red. Push blue on top. Pop takes blue, the last one in. Remember two things. A stack is Last In, First Out. You only use the top.
This clip is from the full lesson: Stack Implementation Using a List — 6 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 12 Computer Science (083)
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