sturdy jewel
If the contents are:
1 - Queue q = new Queue();
2 - q.enqueue(3);
3 - q.enqueue(10);
4 - if(q.dequeue()<5)
5 - q.dequeue();
6 - q.enqueue(1);
7 - q.enqueue(6);
I'm a little stumped by the line 4/5. I know initially it is [3, 10] but does it remove both elements or just the [3]?
As a result, I'm unsure if the correct answer is [10, 1, 6] OR [1, 6]
glad geodeBOT
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dusty magnet
every time dequeue is called, it removes an element from the queue. what's done with the result isn't the queue's problem anymore
try going from there
sturdy jewel
try going from there
so its [1,6]?....
dusty magnet
yep
sturdy jewel
what would happen if you changed the 3 to a 7 in the enqueue on line 2 though?
then in that case it would be [7, 10, 1, 6]
sturdy jewel
what would happen if you changed the 3 to a 7 in the enqueue on line 2 though?
WAIT NO my bad it should be [10, 1, 6] bc it still removes 7 it just doesnt go further since its false
dusty magnet
yep
glad geodeBOT
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dusty magnet
well the order no, but popping something from the stack just plainly removes it just like dequeue
sturdy jewel
so for example, if i were to have
stack s = new Stack();
s.push(16);
s.push(10);
if (s.top()>15)
s.pop();
s.push(2);
s.push(3);
dusty magnet
that's any method, really
sturdy jewel
it would be 16,2, 3 right
dusty magnet
so for example, if i were to have
stack s = new Stack();
s.push(16);
s.push(10)...
this isn't analogous to the queue code you showed
top is like a peek, pop is like dequeue
sturdy jewel
right
dusty magnet
peek/top do not remove from the structure
sturdy jewel
im just a little confused by the
if (s.top()>15)
s.pop();
bc i know it will begin the stack with 16 at the bottom then 10 next
[16, 10]
since 10 is less than 15, it fails so it wont do the next one but gets deleted
so itll be [16]
dusty magnet
it won't be deleted though
sturdy jewel
then withj the next two push lines its just [16, 2, 3]
ohhh
wait how did the one in queue get deleted twice then
dusty magnet
again, top is just inspection, pop is how you remove
dusty magnet
wait how did the one in queue get deleted twice then
it was using dequeue in the conditional
sturdy jewel
OHHHHH
i see
so top is just checking to see what value it is
where as dequeue is an actual method right
dusty magnet
top is also an actual method, wdym
sturdy jewel
oh my bad yes ur right
it is a methid
its just checking what value it is and doesnt actually remove it like pop does
dusty magnet
yes
sturdy jewel
wehre as in the queue one, it uses deqeueue for conditional which is not a method to check what value it is but rather remove from the queue
dusty magnet
what you do with the value isn't its problem, same as in dequeue
but within the method itself, top does not remove, while dequeue or pop do
sturdy jewel
right
now lets just say it was
stack s = new Stack();
s.push(16);
s.push(17);
if (s.top()>15)
s.pop();
s.push(2);
s.push(3);
then it woudlve been [16, 2, 3] right
dusty magnet
yep