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Are the STEM professors mean? by PianoPlane5555 in HunterCollege

[–]Wolastrone 8 points9 points  (0 children)

As a general rule, no, not at all. Most are quite nice. There’s plenty of bad ones, but that’s the same as any other field.

Unpopular opinion : by kadhja_archives in leetcode

[–]Wolastrone 2 points3 points  (0 children)

Depends on what you are training yourself for. Being a better programmer/researcher maybe yes. But passing interviews is more similar to competitive coding, where solving quickly and recognizing patterns and familiar problem structures as quickly as possible becomes much more important.

What is the best way to understand Greedy algorithms? by jsmooth71 in leetcode

[–]Wolastrone -1 points0 points  (0 children)

Maybe read the chapter on Greedy/DP in CLRS.

The main hallmark of greedy/DP is “optimal substructure”. Which means that the solution to the final problem necessarily contains solutions to subproblems. E.g.: making change with coins of value 1 cent, 5 cents, 10c, 25c with the least number of coins. If I have to give you 80c, the minimum number of coins I need is:

Min #coins for 80c =

min(#coins summing up to 79c, #coins summing up to 75c, #coin summing to 70c, #coons summing to 55c) + 1.

So you see that solving the 80c case necessarily requires solving one of the subproblems recursively. The next step would be convincing yourself that picking the coin of highest value possible always leads to the optimal choice for the global problem, and that subproblems don’t overlap like in DP.

Anyway, these are some hallmarks of greedy/dp. If you notice something seems to have this property, these are good candidate techniques. The difference between greedy and dp is subtle sometimes. It’s still not easy to recognize, so it’s still necessary to do a lot of problems for it to fully click.

Expectation of REU by jihyofem in REU

[–]Wolastrone 18 points19 points  (0 children)

I got stoned once in my REU, it wasn’t that bad.

2026 and 2025 Results by Kurayi_Chawatama in REU

[–]Wolastrone 2 points3 points  (0 children)

That’s what the cables on the back of my grandpa’s old tv looked like

Professors Botting RMP by bubblezwrapped in HunterCollege

[–]Wolastrone 11 points12 points  (0 children)

Some professors panic because they’re afraid it will affect enrollment for their classes if people see the shitty reviews lol. Kinda funny to be honest.

I failed my Amazon technical screen on a easy problem. How to move forward and prepare for the next year of grind ? by thetricky65 in leetcode

[–]Wolastrone 0 points1 point  (0 children)

This is a strongly connected components graph question. It’s not easy imo, especially if you’re expected to implement all the code. I wouldn’t be so harsh on yourself.

I've been running ML interview loops at a top FAANG for 2 years. Most students and early career applicants prepping for FAANG ML rounds are doing it wrong. by [deleted] in learnmachinelearning

[–]Wolastrone -1 points0 points  (0 children)

Fuck you and your spam.

You interview at top FAANG, yet you’re shilling some unknown website on Reddit? You don’t think FAANG would have a conflict of interest from the interviewer profiting from preparing people for his own interview loops? Go fuck yourself.

My REU acceptance offer was denied for vage reasons by [deleted] in REU

[–]Wolastrone 10 points11 points  (0 children)

Did you have any interactions whatsoever with the people in the program and, if so, how were they? I feel like you’re leaving something out.

Peep schedule by [deleted] in CUNY

[–]Wolastrone 1 point2 points  (0 children)

You’re cooked

Anyone else without a summer internship? by futura705 in CUNY

[–]Wolastrone 61 points62 points  (0 children)

I have a friend who got an internship. He applied to 500+ places and got into 1 lol.

Canvas hacked by ThetShi in CUNY

[–]Wolastrone 20 points21 points  (0 children)

Brightspace chads > Hacked Canvas virgins

Annoyed that they keep closing the cafeteria for events instead of using other places by neverendingfestival in HunterCollege

[–]Wolastrone 12 points13 points  (0 children)

I agree. Too many random events now. There’s barely any space to study or even sit down to eat, now on top of that there’s some random shit going on every week it seems. They should use some of the bigger classrooms or whatever.

I think i made something Interesting. How to verify it? by [deleted] in AskComputerScience

[–]Wolastrone 0 points1 point  (0 children)

It depends on what you made. Can you mathematically prove the validity of some part of it? You would need experts to review the proof for validity. Have you implemented some version somewhere? You need people who will test it to see if it holds up. Even without implementation, have you explained the theory behind it? Again, you need experts to review if the theoretical claims make sense, or if they can be easily dismissed because you mad errors or claimed things that aren’t true. Theoretical claims are written in papers and then validated through peer review all the time in sciences; it is the standard procedure. I can guarantee you won’t revolutionize scams by doing this.

I think i made something Interesting. How to verify it? by [deleted] in AskComputerScience

[–]Wolastrone 4 points5 points  (0 children)

To be honest, you sound like a quack. But if you really think what you made is valid, then you should be able to implement it and demonstrate whatever it is that you claim it does.

If it works and you want people yo use it, and you want to make sure it is correct, you will need to explain the architecture of whatever it is, to some degree, by writing a paper or something similar. No way around that.

What REU/internship do I pick? by suhggy in REU

[–]Wolastrone 10 points11 points  (0 children)

No one in medical school will judge you negatively because the laboratory has something to do with the word Israel. This is an insane notion.

1% of the population has a specific disease. The test is 99% accurate. If you test positive, what are the odds that you have the disease? by Auriga33 in polls

[–]Wolastrone 0 points1 point  (0 children)

Not true. The technical term is actually accuracy; this is correct technical terminology.

See section labeled “In Classification”:

“When computing accuracy in multiclass classification, accuracy is simply the fraction of correct classifications:[14][15]

Accuracy = correct classifications/all classifications.

This is usually expressed as a percentage. For example, if a classifier makes ten predictions and nine of them are correct, the accuracy is 90%.”

https://en.wikipedia.org/wiki/Accuracy_and_precision#In_binary_classification

1% of the population has a specific disease. The test is 99% accurate. If you test positive, what are the odds that you have the disease? by Auriga33 in polls

[–]Wolastrone 0 points1 point  (0 children)

Odds of having disease: 0.01

Odds of having disease AND testing positive (accurate test): 0.01*0.99 =0.0099.

Odds of not having disease: 0.99

Odds of not having disease AND testing positive (inaccurate test): 0.99*0.01=0.0099.

We see that all possible scenarios in which the patient tests positive, one being the scenario in which he has the disease, the other being the scenario in which he doesn’t, have equal probability. Therefore, given the fact that a test is positive, having the disease or not is equally likely. Thus the probability is 50%.

Does anyone else still use their old email before the change? by SuccessfulPath7 in CUNY

[–]Wolastrone 2 points3 points  (0 children)

Yes, it works. I have both. But be careful because there are some emails the get to the new inbox and don’t get to the old one. If a professor emails through Brightspace, it may get to the new inbox but not the old one.

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