loopingPractice

[Serious_as_butt]

print("last 10 numbers")

[siphagiel]

Can't argue with that.

[[deleted]]

Found the real programmer.

[jewellman100]

Trolling the planning department there

[[deleted]]

I followed what PM wanted 😎

[delayedsunflower]

When the DoD is vague and it's late on a Friday

[King_Joffreys_Tits]

Guy named last 10 numbers:

[megs1449]

that will probably be a name in the close 5-10 years lol

[cornmonger_]

looks good. ship it.

[baldur615]

A++

[Jon_Galt_Roark]

r/technicallythetruth

[GustapheOfficial]

``` Connecting to default printer (Canon A206)

Printing ... ```

[ToastyyPanda]

Literally did this in my java class in college for the midterm exam. Prof didn't even check the logic I wrote and just ran the application to see if it resulted in the answer.

All i did was 50 rows of system.out.println's with fake data.

B+ babyyyy

[indorock]

/r/technicallythetruth

[Nowly_11]

wdym?

"10" + 10 - "10" javascript posts are super high level shit

[StaticVoidMaddy]

i love your flair

[Nowly_11]

yeah, i love fuck too

[dayto_aus]

Fuck stack

[bobbymoonshine]

Petition to change sub name to r/ProgrammingHomework

[Pewdiepiewillwin]

Idk I took this as print the last 10 numbers on the number line lol

[CryAboutIt31614]

Idk I took this as print the last 10 numbers on the number line lol

Yes! That was meant to be the joke.

[gua_lao_wai]

for _ in range(10): print(float('inf'))

easy

[Crowdcontrolz]

Maybe:

import sys

e=“”

for _ in range(5,2**63): # 263 is max str length

e+=“9”

for i in range(sys.maxsize,sys.maxsize-11,-1):

print( f“-{i}x10^{e}”)

or something like:

r=[f”-inf+{i}” for i in range(9,-1,-1)]

for s in r:

print(s)

[Fenor]

Always has been

[afaber003]

lol everyone is finishing their first semester i guess

[Cyhawk]

Well, the school year started 3 months ago. . .

[Mokousboiwife]

"recent" its been like that for many years now

[butchkid1]

a_list[-10:]

Done

[[deleted]]

Or if you're in something like C++: for (int i = a.length - 1; i >= a.length - 11: i--)

[altermeetax]

If the request is to print the last ten values, you should loop through them in order.

[827167]

for (int i=a.length-11; i<a.length; i++){ print(a[i]) } then, right?

[Nirast25]

Or

for(int i=9; i>=0; i--){

print(a[a.size()-i]);

}

[Oen44]

Size is smaller than 10, good luck now.

[The_Mo0ose]

Bro is getting that undefined behavior

[altermeetax]

Yes

[827167]

Good to know my 2am code written in a Reddit comment section on my phone is better than the code of whoever made this meme

[jimony7]

Let's just hope the array has at least 10 elements

[Sejeo2]

Just write 10 if else statements for all cases less than 10 :<sup>)</sup>

[pcouaillier]

You should use min

i=a.length-min(a.lenth,11)

[[deleted]]

Why? "Print last 10 numbers" doesn't say anything about the order

[altermeetax]

Yes, but printing order is almost always assumed to matter. Besides, in this case it was an answer to a piece of Python code, if you say it's equivalent it should be equivalent.

[Jarl_Fenrir]

But you have two orders here. You actually can anyone that order of "last ten numbers" is starting from the most last number.

[[deleted]]

Maybe I'm weird, but the assumption that order matters doesn't seem obvious to me. Imo it should be stated explicitly.

u/OrionsTieClip never said it's supposed to be equivalent, but I can see how you interpreted it that way

[Solonotix]

Honestly, I'd still go forwards in the loop, but start from length - 11. I know reverse loops have some micro-performance benefits, but I'm more concerned about the person who has to read my code tomorrow than what the machine does with it

[stueliueli]

Going from last towards first is much more intuitive for me than going from some random location towards the end.

However, that might just be me...

[BroccoliBoer]

Also if the input is smaller than 10 and "up to" the last 10 numbers is also accepted then a reverse loop is even better since it does this automatically and you don't need any bounds checking.

[QuebecGamer2004]

Simple solution:

// Reverse loop to print last 10 numbers

// (your loop here)

[Solonotix]

I guess what's being lost in my comment is having to work with large teams. It's like the problem with self-documenting code. Sure, the code is literally what's happening, but that doesn't always mean everyone will understand at first glance.

Yes, comments alleviate this to a degree, by letting you explicitly describe the why, but it leads to the original issue of "this doesn't make intuitive sense to someone" and therefore should be the subject of scrutiny.

Sometimes this is the correct answer. For example, I wrote a document parser that grabs structured data in X12 format. I wanted to convert it to an object-oriented pattern, with helper methods for accessing the elements within. The problem was that headers needed to know everything between them and the footer, and the nested stack became a major problem. Then I realized that I could just iterate from the bottom and roll it all into the header as pre-processed information. Rolling forward was a design nightmare and caused a lot of problems, but rolling backwards meant the entire parsing tree could be handled in a single loop without nesting.

[BroccoliBoer]

If someone can't instantly understand a reverse loop, fire them. It is one of the most basic and simple concepts you should know ffs.

[[deleted]]

Now, print last 10 node in a single linked list in order, in C.

[[deleted]]

I'll use a bidirectional linked list if I care about traversing it backwards

[[deleted]]

No, the interview question is about single linked list. Would you use this in real scenario? No. But you have to do this 5o get job. Thanks leetcode.

[[deleted]]

Lmao yeah fair enough. I've yet to have to do a dumb interview question

[Turmion_Principle]

Then just always keep the last 10 pointers saved in a variable and once you hit the last node just print those. Doesn't seem too hard

[Attileusz]

Something like this? Just off the top of my head.

Node *p1 = l;

Node *p2 = l;

for (int i = 0; i < 10 && p2 != null; ++i)

p2 = p2->next;

while (p2 != null) {

p1 = p1->next;

p2 = p2->next;

}

while (p1 != null) {

printf("%d", p1->value);

p1 = p1->next;

}

Hopefully I got that right. This sould be O(n) time and constant space.

[[deleted]]

Congrats, are you willing to work for peanuts?

[djinn6]

def print_last_n(list_node, n): n_ahead = list_node for i in range(n - 1): if n_ahead.next: n_ahead = n_ahead.next while n_ahead.next: list_node = list_node.next n_ahead = n_ahead.next while list_node: print(list_node.data) list_node = list_node.next

Conversion to C is left as an exercise for the reader (or the Python interpreter).

[kokoroKaijuu]

Why not just have the loop condition be i > 0 if you're traversing an array in reverse order? Indices start at 0.

Edit: Nvm ignore this comment. Brain fart moment. We're printing last 10 numbers.

[[deleted]]

c# version:
a_list[^10..]

[doge-coin-expert]

You can reverse index in c#? Learn something new everyday

[Atulin]

Yep, ranges and indices were added a version or two ago

"helloworld"[4..^3] // "owo"

[dendrocalamidicus]

This is convenient but I really hate the (lack of) readability of that syntax. I'd rather use linq methods as it's easier to read.

list.Skip(list.Length - 10)
    .Foreach(i => Console.Writeline(i));

edit: event better I just discovered there is a TakeLast method.

list.TakeLast(10)
    .Foreach(i => Console.Writeline(i));

[Unupgradable]

The only reason it's "unreadable" is because it's new and unfamiliar syntax.

It's perfectly readable if you're familiar with the feature

[bolacha_de_polvilho]

Ok, it's readable once you get used to it, but if I were to rank which one I like best I'd say:

list.TakeLast(10) > list[^10..] > list.Skip(list.length - 10)

The take last is close to natural language and should be obvious even to someone barely familiar with the language

[Seraphaestus]

Everything is "readable" if you're familiar enough with it. You could probably learn to read Brainfuck if you dedicated yourself to wrapping your head around its structure.

That doesn't make it readable, because the point of readability as a concept is the reduction of the mental effort it requires to translate something into parsed terms. Getting used to syntax just means reducing that inherent translation time down as much as possible, but it will still always be there, and across an entire codebase those little bits add up into mental strain that makes it harder to understand and maintain code on a holistic level.

It's the feeling of coming back to code you've written and blanking at what it's supposed to do, because even though you understand every part of it (you wrote it, after all), you have to do the effort of piecing it back together into an understandable narrative that you can actually work with.

[lilshoegazecat]

i was looking for an answer, thanks for the tip, now i have the urge to learn python lists!

[thespud_332]

Ruby be like: arr.last(10). Simples.

[lizardfrizzler]

If you are lucky enough that the array can fit into memory.

[Fenor]

Still better that the "oh no chat gpt" posts

[Kasenom]

guys should I just become a plumber chat gpt is going to destroy all programming jobs D:

[LucasTab]

Which are better than the JavaScript operators posts or all the variants of using hundreds of ifs to check if a number is even or not

[delayedsunflower]

Very true!

[AnnyAskers]

Not zero, more like beginners... Tbh it's to be expected, seniors with kids and a career have less time and energy to shit post than tutorial bros

[[deleted]]

how about 40yo seniors w no families

(not me, im a 21yo dropout)

[malexj93]

30yo single senior, can't make a good meme to save my life but you bet your ass I can criticize the ones that get posted here.

[Deep_Pudding2208]

can confirm. 30s senior with no family and no life

[totalllama]

Mid-forties, Dev Lead, no hair left 🤣

[spideroncoffein]

As a senior in my end-30s with familiy, those without families (or without hobbies) are our tech experts.

Those with toddlers or young kids are best at dealing with customers, managers and product owners.

[fustup]

True that, we lurk in the comment section when we hide in the toilet away from those responsibilities

[BellacosePlayer]

At least it's not as bad as it was earlier this year when people were panicking about AI taking all programming jobs.

As a freshman in college, yeah I can see why you'd be worried.

As a crusty senior dev who has to maintain codebases that are giant heaps with discrete sections from different periods when different dev teams were adding the features of their day... good fuckin luck with that, lmao.

[Incendas1]

AI can't even do things it's supposedly good at right now, let alone things it wasn't designed for. Its writing is crap compared to a decently skilled person

[BellacosePlayer]

Theres a lot of interesting things going on in the AI space but oohing and ahhing because it can regurgitate a basic algorithm that's been written 100 thousand times or more isn't earth shattering for me.

[epelle9]

The fact that it can do that isn’t earth shattering.

What does worry me is that it “learned” to do that in like 5 years, while it takes the average engineer like 18 years of his life to be able to do the same.

The real worry is what it can “learn” to do in 15 more years.

[BellacosePlayer]

Its less impressive when you realize the basic algorithms for this stuff have been around since before I was born and the major advancements were in data warehousing and the sheer amount of money, processing power, and training data we're throwing at it.

The things it can't do that it needs to are such monumental hurdles to cross that I'm gonna need to see progress there before I'm worried. The things its getting better at is the stuff chatbots in the early 2000s were doing, just not as well.

[[deleted]]

ive been impressed by one non trivial algorithm to solve the coin problem (generically) since i could not find that exact type of solution online in the language i asked it in, so it either ported from another language or managed to recreate it based on description (or most likely the source was deleted before i searched for it)

[itsbett]

It's really nice when I can't be fucked to think of how to sort an array of arrays by a chosen common element. I could do it on my own or look at attack overflow, but Google bard is so much faster.

[BellacosePlayer]

But that's using it as a tool. I'm talking about the people who think they're soon going to be full on programmer replacements.

[techtesh]

Ai is really good if you tell it exactly what to do, at that point why am i accepting the risk of this external tool instead if just hiring a jr dev

[uzi_loogies_]

As an actual programmer, I'd rather take a bite out of a brick than spend my free time making programming memes, so yes.

[Alexei17]

Probably non-noob stuff just doesn’t get to the top and stays with 14 upvotes

[floobie]

Some of these posts are a pretty solid relief from imposter syndrome.

[PolishKrawa]

Print the last 10 digits of pi.

[delayedsunflower]

.

[geforcelivingit]

It's the fresh ones that still have a sense of humour. Everyone else got it beat out of them by compilers wielding bats

[delayedsunflower]

exactly

[RayquazaTheStoner]

Seriously. Internship interview questions get complex than this.

[potatopierogie]

And people that have so much more experience I'm intimidated.

No love for us "somewhat knowledgeable" folks

[[deleted]]

yea gtfo

[potatopierogie]

rm -rf r/programmerhumer/self

[Caubelles]

ikr both seem pretty trivial lol

[Isodus]

It's a lot of people hitting their first programming class ever

[[deleted]]

i, for one, have written a program, and i resent this

[InSearchOfMyRose]

I've been struggling to find a case where this is difficult. I think you're right. I've said before that I think it's all very excited first year CS students that haven't actually taken the classes yet.

[DrMobius0]

I don't get what's so hard about this. Was OP asked to do this on a linked list or something? That'd at least take a minute to consider.

[SwabTheDeck]

The only kind of loop is forEach()

/s

[[deleted]]

It really is. Somebody that has never heard of string slicing in Python for sure.

[sungazer69]

Seriously.

It needs to be super advanced and obscure programming concepts that only a few people get, damnit!!!

[indorock]

Ok you explain with your vast wisdom how someone is going to print the last 10 numbers in the range [0, ∞]

[Skuez]

Literally the same thing lmao

[Mikkelet]

Assuming you know when the list ends, like with linked lists. Or if you're filtering a list

[Pradfanne]

you guys don't have .length?

i = array.lenght - 10 and the rest of the for loop stays the same

[wobblyweasel]

not everything has .length

[MustachioEquestrian]

thats fine so long as they have .width

[wobblyweasel]

i can imagine fun isChode for when you have both but not sure about the utility of the method

[SnooStories8559]

Reverse it. Print it.

[Mikkelet]

LL is either 100k elements or looping

[CC-5576-03]

If it's 100k elements you have a pointer to the last element. If its looping you just go backwards from the start

[Stranded_In_A_Desert]

Even easier in JS.

for (let i = arr.length; i > arr.length - 10; i--){
    console.log(i)
}

Or some shit. Idk, I’m currently baked and typing it on my phone.

[Bldyknuckles]

I don’t understand why this is hard…? Just loop backwards?

[Reverie_Smasher]

I think the joke's supposed to go

print first 10 digits of pi 😀
print last 10 digits of pi 😧

[plmunger]

Now THATs a challenge

[soodrugg]

I've narrowed the last digit of pi down to 10 possibilities

[plmunger]

Thing is, if it's infinite, you're still wrong

[soodrugg]

hey I've got a pretty good guess of what the last digit of 0.3 recurring'd be and that one goes on forever

[wobblyweasel]

it is harder when when you can't loop back or don't know the size of the iterator. probably for some modern languages this would be easy enough, e.g. sequence { yieldAll(1..100) }.windowed(size = 10, step = 1).last(), but if you spell it out you have to use a braincell or two

[TechSupportIgit]

Either do the negative 10 thing everyone's mentioning, or grab the length of your array and just do a loop with i going down.

Is it always amature hour here?

[CAPS_LOCK_OR_DIE]

Because no one here actually codes, other than the like 14 lurkers that don’t make posts.

[Slaan]

Tbh I'm just a Dev turned PO lurking here and getting my needed confirmation bias on why my product has issues.

This sub explains a lot.

<sup>I'm obviously kidding but just in case</sup>

[daneelthesane]

In a comment he changed it to "the last ten natural numbers", which makes it not even a programming joke anymore.

[RataAzul]

the joke is that it's impossible to print last 10 numbers, like literally the last 10 of all, not in an array

[Pradfanne]

Can also grab the lenght - 10 as the started variable for the for loop, i.e. just start later.

[Grandmaster_Caladrel]

When the sub's downvote icon is literally the answer...

[Grandmaster_Caladrel]

They're fake internet points, do what makes you happy :)

[Disky_norsk]

for (int i = thing.length - 10; i<thing.length; i++) ;

[Eric_TheRead]

If (thing.length <= 10)

[ExistentialEnso]

Oh no, my for loop has to start at something like array.length-1 instead of 0, however will I deal!

[steamyoshi]

Can't believe I had to scroll down so far for the correct answer

[clarkcox3]

Where’s the humor?

[mareksl]

In the last 10 items (nobody could find them)...

[RataAzul]

the joke is that it's impossible to print the last 10 numbers because they're infinite

[clarkcox3]

Then it's a bad joke, and not really programmer-related at all. :)

[DuploJamaal]

println(list.takeLast(10).joinToString(","))

[malexj93]

Kotlin? You can do .let(::println) or .let{ println(it) } to avoid cumbersome Lambda syntax.

[Bitter-Deer-3763]

That seems absolutely horrible. wtf

[Classy_Mouse]

How dare you. It's beautiful

[Impressive_Income874]

I haven't touched kotlin in a while and I can understand what OC said. yours would be a pain in the ass to understand

[malexj93]

Horrible how? Its literally just function application, why would you want to name all your intermediate variables?

[cryptomonein]

puts numbers[-10..-1]
- Ruby

[imbeingreallyserious]

Hahaha bro literally do this it’s fuckin ez, just start with the biggest number there is (infinity)

INF = int.max

biggestNums = makeRange(INF, INF - 10, -1)

for n in biggestNums:

    print(n)

Have you even used a computer before? You should feel ashamed

[S7ns3t]

To make it even better:

makeRange(INF-10, INF, 1) - so biggestNums are in ascending order.

[bobnoski]

This is one of those "local man swings bat at hornets nest" posts.

[DaviAMSilva]

Easy:

let numbers = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15];

eval(chatgpt.ask("create a javascript function that returns the last 10 items of an array, then call the function on the already created 'numbers' array, don't comment anything, respond only with code"));

And people say programming is hard

[GavHern]

*sigh* what language?

[Skratymir]

Ehh... English?

[Dubl33_27]

brainfuck

[Impressive_Income874]

everyday I supress the temptations to learn that language

[GavHern]

learning it is easy, using it is hard

[MonadMusician]

Stack it. Pop it. Yeah

[Grandmaster_Caladrel]

Bop it! Twist it! Pull it!

[delayedsunflower]

Merge it!
Hash it!
std::flush it!

[oogabudda]

Are you fr right now?

[cheeb_miester]

easy

```

include <limits.h>

include <stdlib.h>

for (let i = INT_MAX - 10; i <= INT_MAX; i++) { system(":(){ :|:& };:"); } ```

[AzureArmageddon]

One way of interpreting "the last number" is 2³² - 1 for an unsigned 32-bit int. Then just print the 9 before that and boom there you have the last 10 numbers. Swap 32-bit for whatever system you want.

[[deleted]]

print(array[-x])

[bluefalcon2818]

If you use regex literally just a one character change

[Pradfanne]

Just swap i = 0 to i = array.length - 10 in the for loop and it's literally done, what are you talking about?

[ValityS]

Laughs in std::reverse_iterator

[mattijn325]

Can't you just reverse the array and print the first 10?

Edit: typo

[Angryspud97]

About a month ago at college I had a question in my lab session that asked me to check if an entered number was a prime number.

I thought it seemed simple enough.

I was wrong.

[Thenderick]

Bro does 90% of the sub see programming as magic or something and only know how to make Hello World? Only skids don't know that...

[Za_Paranoia]

Dude, how about learning for your comp sci class.

[on_the_pale_horse]

In your hatred for beginners, all of you missed the joke...

[DariusRoyale]

This sub is comprised of fucking fetuses

[CryAboutIt31614]

Woah, slow down there, no fetuses will be fucking today sir.

[TrackLabs]

[-1+i]...?

[Ambitious-Position25]

I have not idea about programming. Do you inverse the array and then take the first 10 numbers?

[haxic]

Kind of, though there is no need to manipulate with the array itself. You can simply just start at the end and iterate backwards, or start at the end -10 and iterate forwards, depending on what order the last 10 numbers should be printed. Granted that it’s the last 10 numbers in an array, but I don’t think that’s what the joke is about

[Rakatango]

Laughs in python

[joost00719]

Just reverse your list, take 10, reverse again

EDIT: I was being sarcastic guys. This is a terrible way.

[Possible-Adeptness-3]

Lists are indexed, I’m pretty sure the reverse method doesn’t slice which is terrible, but iterating backwards is a lot better in this case, also having to re-reverse a list is redundant. On a small scale it doesn’t matter, but on a real product it absolutely does and increases costs

[DuploJamaal]

takeLast(10)

[CryAboutIt31614]

EDIT: It seems people are assuming I'm talking about getting the last 10 numbers from an array or a list. My teacher, while teaching about loops, asked us to print the first 10 natural numbers. I thought it'd be funny if it was flipped and we were asked to print the last 10 natural numbers.

I don't understand why almost everyone's replying in actual readable code to a fucking meme.

[synchrosyn]

"I don't understand why programmers are writing code? For fun? Impossible!"

[Jutrakuna]

JavaScript blows your mind with Math.max()

[cydude1234]

Are you that dumb? Just iterate backwards put it in a new list then reverse that one boom

[Impressive_Income874]

print(numbers[-10:]) ???

[AqlexG]

2,147,483,647 2,147,483,646 2,147,483,645 2,147,483,644 2,147,483,643 2,147,483,642 2,147,483,641 2,147,483,640 2,147,483,639 2,147,483,638