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Channel

Библиотека задач по Go | тесты, код, задания

@go_problems_lib

On this record: Topic · Growth · Engagement · What this channel posts · Reactions · Stars · Posts · Posts recorded as deleted · Polls · Citations · Telegram's recommendations · Cite this entry

6,663subscribers

-106 since we began measuring on 6 August 2026

Risers and fallers across the register · movement among entries of 3,162–10,000.

Register entry

Telegram ID-1001691572263
TypeChannel
Username@go_problems_lib
DescriptionЗадачи и тесты по Go для тренировки и обучения. Учиться у нас: clc.to/4o0_XA По рекламе: @tproger_sales_bot Для обратной связи: @proglibrary_feeedback_bot Наши каналы: https://t.me/proglibrary/9197
CreatedBetween 1 December 2021 and 30 April 2023 — estimated from Telegram’s id allocation, not measured. How this range is calculated.
First recorded6 August 2026
Last confirmed live8 November 2026
Measurements held26
Confirmed unchanged1 time, most recently 8 November 2026
On Telegramt.me/go_problems_lib

Topic

Education — a classification, not a measurement. An on-box language model (Qwen3.6-35B-A3B-FP8, prompt version 1) read this channel’s own recent posts on 12 September 2026 and assigned it the closest of 31 fixed categories, at 99% confidence. This is a model’s judgement about what the channel is likely to be about, not a fact this register measured the way a subscriber count or a view count is measured — it can be revised on a later pass, and it carries no weight anywhere else on this page. How this classification works, and the other topics.

Growth

6,6636,7706,716.56 August 2026 — 6,769 subscribers7 August 2026 — 6,769 subscribers10 August 2026 — 6,770 subscribers13 August 2026 — 6,767 subscribers16 August 2026 — 6,768 subscribers20 August 2026 — 6,767 subscribers23 August 2026 — 6,768 subscribers27 August 2026 — 6,763 subscribers29 August 2026 — 6,764 subscribers1 September 2026 — 6,757 subscribers4 September 2026 — 6,759 subscribers10 September 2026 — 6,758 subscribers13 September 2026 — 6,754 subscribers17 September 2026 — 6,756 subscribers27 September 2026 — 6,746 subscribers5 October 2026 — 6,737 subscribers12 October 2026 — 6,727 subscribers15 October 2026 — 6,720 subscribers18 October 2026 — 6,716 subscribers20 October 2026 — 6,709 subscribers23 October 2026 — 6,702 subscribers26 October 2026 — 6,690 subscribers29 October 2026 — 6,683 subscribers1 November 2026 — 6,673 subscribers5 November 2026 — 6,674 subscribers8 November 2026 — 6,663 subscribers6 August 20268 November 2026
26 measurements spanning 94 days, net -106. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 6,647–6,786 and does not start at zero.
Measurement log — every subscribers count we have recorded, most recent 20 of 26
Measured (UTC)SubscribersChange
8 Nov 2026, 21:186,663-11
5 Nov 2026, 08:386,674+1
1 Nov 2026, 21:396,673-10
29 Oct 2026, 15:376,683-7
26 Oct 2026, 14:066,690-12
23 Oct 2026, 17:486,702-7
20 Oct 2026, 23:316,709-7
18 Oct 2026, 08:166,716-4
15 Oct 2026, 14:186,720-7
12 Oct 2026, 09:416,727-10
5 Oct 2026, 09:566,737-9
27 Sept 2026, 17:196,746-10
17 Sept 2026, 21:216,756+2
13 Sept 2026, 20:196,754-4
10 Sept 2026, 05:226,758-1
4 Sept 2026, 16:166,759+2
1 Sept 2026, 09:086,757-7
29 Aug 2026, 19:186,764+1
27 Aug 2026, 00:066,763-5
23 Aug 2026, 22:236,768first reading

Engagement

45 posts held, back to 22 July 2026 — the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 22 pages of Telegram’s post history, 20 posts per page.

ERR · 30 days
12.7%
avg views ÷ 6,663 subscribers
Avg views / post
849
24 posts measured
Reaction rate
1.67%
reactions ÷ views · ER floor
Posts in window
24
of 45 held

ERR is average views per post over the last 30 days divided by subscribers, the definition TGStat uses, so this figure is comparable with the one you will see elsewhere. It falls structurally as a channel grows: a high ERR on a small channel and a low one on a large channel describe reach mathematics, not quality. We publish the figure and the sample it came from and pass no verdict on it.

ER is defined industry-wide as (forwards + reactions + comments) ÷ views — note the denominator is views, not subscribers. Telegram’s public web preview carries views and reactions but not forward or comment counts, so the reaction rate above is the reactions term only and is therefore a floor: the true ER for this channel is higher by an amount we have not measured and will not estimate. It is computed over the 23 of 24 measured posts that carry a reaction reading, and over those same posts' views.

What these figures were computed from
WindowRolling 30 days · latest post in window 9 November 2026
Posts held45 (22 July 2026 – 9 November 2026)
Views total20,367
Reactions total319
Forwards / commentsnot exposed by the public surface — not measured, not estimated
Readings taken9 Nov 2026, 16:46 UTC

Views are a single reading per post, taken at the time above. A post published in the last day or two is still accumulating views, which pulls the 30-day average down slightly. That is a property of the standard definition rather than a fault in it, so we keep the definition rather than “correcting” the number into something nobody can reproduce.

Precision. Telegram publishes view counts on its public widget in short form — 8.12K, 3.7M — so any reading at or above 1,000 reaches us rounded to three significant figures, and only counts below 1,000 are exact. Averages and rates derived from them are shown to the same precision rather than to the unit: a figure like 3,701,250 would assert digits nobody measured.

Reaction counts are published per emoji and rounded the same way, so a total below 1,000 is exact and a larger one is a sum that may carry a rounded component from each emoji above 1,000. Because it is a sum, it does not look rounded — read a large reaction total as three significant figures per contributing emoji rather than as the figure it prints.

What this channel posts

Photos
618
Videos
8
Links
398

Lifetime counters from Telegram’s own channel header, read 9 November 2026 — not the date at the top of this page, which is when the subscriber count was last read. Below Telegram’s rounding threshold, so these counts are exact.

Reaction mix

377 reactions across 34 posts, in 13 distinct kinds. The most used accounts for 26.0% of them.

Every reaction kind recorded on the sample, most used first
ReactionCountShareShare, drawn
👍9826.0%
🥰8021.2%
⚡7219.1%
👾5715.1%
❤297.69%
👏82.12%
🥱82.12%
👻61.59%
🤔61.59%
🌚51.33%
😁41.06%
🔥30.796%
😢10.265%

No sentiment is inferred, and none should be read in. This table is ordered by count and by nothing else. Emoji do not carry stable meaning across languages or communities — 🙏 is thanks in one channel and mourning in another — so we publish which ones were pressed and how often, and pass no judgement on what an audience meant by them.

Precision. Telegram publishes reaction counts per emoji and short-forms each one — 4.34K, 1.2M — so any single kind at or above 1,000 reaches us at three significant figures, and only counts below 1,000 are exact. The shares above are ratios of those figures and carry the same error. This is also why the total here can differ slightly from a reaction total printed elsewhere on the page: both are sums of the same rounded parts, taken over samples with different edges.

Coverage. Reactions were read on 37 of the 45 sampled posts in this sample. Summed by Telegram’s own count on each post — not by adding up the per-emoji breakdown above — those same posts carry 377 reactions in total: the kind of figure the paragraph above means by “a reaction total printed elsewhere on the page”.

Measured over the 45 most recent posts we hold, published 22 July 2026 to 9 November 2026, using the newest reading held for each. Telegram Stars are excluded: they are a payment, not a reaction, and they have their own section.

Telegram Stars

Stars received
2
across the posts below
Posts paid on
2
of 45 we hold a reading for · 4%
Most on one post
1
single highest reading

A paid reaction is a reader spending Telegram Stars — bought with money — on a post by @go_problems_lib. Telegram publishes the count on the public post preview alongside ordinary reactions, and this register reads it there. It is the only figure on this site that measures money moving rather than attention.

Stars are not reactions, and the two are never added. They are rendered in the same strip on Telegram and counted in the same shape, but one is a tap and the other is a purchase. The reaction totals and the engagement rate elsewhere on this page exclude every figure in this section, and no rate here is computed against a reaction count.

This is not revenue, and we publish no currency figure. What a Star costs a reader and what it pays a channel are different numbers, Telegram takes a share we cannot observe, and the terms have changed. Converting a Star count into money would be an estimate dressed as a measurement, so the count is where we stop.

Counted over the 45 most recent posts we hold for this entry, published 22 July 2026 to 9 November 2026. Star counts above 1,000 reach us in Telegram’s short form and carry the same three-significant-figure rounding as everything else on this page.

Recent posts

Telegram’s own ‘edited’ marker: 0 of 24 posts held from the last 30 days (0%) carried it when this register last read them. The marker says a post was changed after publishing, not what it said before — this register holds the earlier wording only where an edit fell between two of its own reads (see the edit ledger and how it is measured).

9 Nov 2026, 09:02 UTC343 views9 reactionsread 9 November 2026

👀 Найдёт ли errors.Is исходную ошибку после обёртки через %w? Go 1.22+. Что выведет код? package main import ( "errors" "fmt" ) func main() { missing := errors.New("missing") wrapped := fmt.Errorf("load: %w", missing) fmt.Println(wrapped == missing, errors.Is(wrapped, missing)) } 👾 — true true 👍 — false false 🥰 — false true ⚡️ — true false Ответ: 🥰 — false true. wrapped — новая ошибка-обёр…

🥰9

8 Nov 2026, 09:02 UTC494 views8 reactionsread 9 November 2026

👀 Что произойдёт при сравнении двух any со срезами внутри? Go 1.22+. Что выведет код? package main import "fmt" func main() { defer func() { if recover() != nil { fmt.Print("panic") } }() var a any = []int{1} var b any = []int{1} fmt.Print(a == b) } 👾 — true 👍 — panic 🥰 — false ⚡️ — Ошибка компиляции Ответ: 👍 — panic. Сравнение интерфейсов допустимо при компиляц…

👍6❤1🥰1

7 Nov 2026, 09:04 UTC546 views13 reactionsread 9 November 2026

👀 Какие числа запомнят замыкания из цикла в Go 1.22+? Go 1.22+. Версия языка в go.mod — 1.22 или выше. Что выведет код? package main import "fmt" func main() { var jobs []func() for i := 0; i < 3; i++ { jobs = append(jobs, func() { fmt.Print(i) }) } for _, job := range jobs { job() } } 👾 — 333 👍 — 123 🥰 — Случайный порядок ⚡️ — 012 Ответ: ⚡️ — 012. Начиная с Go 1.22 у каждой…

⚡12🔥1

6 Nov 2026, 09:05 UTC586 views12 reactionsread 9 November 2026

👀 Изменится ли строка после изменения исходного []byte? Go 1.22+. Что выведет код? package main import "fmt" func main() { data := []byte("Go") text := string(data) data[0] = 'N' fmt.Println(text, string(data)) } 👾 — Go No 👍 — No No 🥰 — Go Go ⚡️ — Паника Ответ: 👾 — Go No. Обычное преобразование []byte в string создаёт строковое значение, которое не меняется вместе со срезом. Строка text сохран…

👾11❤1

5 Nov 2026, 09:01 UTC691 views15 reactionsread 9 November 2026

👀 Изменит ли defer именованный результат после return? Go 1.22+. Что выведет код? package main import "fmt" func value() (n int) { defer func() { n += 2 }() return 3 } func main() { fmt.Println(value()) } 👾 — 3 👍 — 2 🥰 — 5 ⚡️ — Ошибка компиляции Ответ: 🥰 — 5. return 3 сначала записывает 3 в именованный результат n. Затем выполняется defer и увеличивает n до 5. Это значение и получает вызывающий ко…

🥰14🔥1

4 Nov 2026, 09:04 UTC741 views5 reactionsread 9 November 2026

Почему один сдвиг не компилируется, а другой даёт ноль? Go 1.22+. Два фрагмента рассматриваются отдельно. // А: var value uint8 = 1 << 8 fmt.Println(value) // Б: var shift uint = 8 var value uint8 = 1 << shift fmt.Println(value) 👾 — А не компилируется, Б выводит 0 👍 — Оба выводят 0 🥰 — А выводит 256, Б выводит 0 ⚡️ — Оба не компилируются Ответ: 👾 — А не компилируется, Б выводит 0. В А выражение константное: чис…

👾2❤1👍1🥰1

3 Nov 2026, 09:03 UTC691 views16 reactionsread 9 November 2026

Что изменится после передачи массива и среза в функцию? Go 1.22+. Что выведет код? package main import "fmt" func change(array [2]int, slice []int) { array[0] = 9 slice[0] = 8 } func main() { array := [2]int{1, 2} slice := []int{1, 2} change(array, slice) fmt.Println(array[0], slice[0]) } 👾 — 9 8 👍 — 1 1 🥰 — 9 1 ⚡️ — 1 8 Ответ: ⚡️ — 1 8. Аргументы передаются по значению. Массив копир…

⚡15❤1

2 Nov 2026, 09:03 UTC730 views19 reactionsread 9 November 2026

Равен ли nil интерфейс с пустым указателем? Go 1.22+. Что выведет код? package main import "fmt" func main() { var pointer *int var value any = pointer fmt.Println(pointer == nil, value == nil) } 👾 — true true 👍 — false false 🥰 — true false ⚡️ — Паника при сравнении Ответ: 🥰 — true false. Сам указатель равен nil. Но у интерфейса value уже есть динамический тип — *int. Интерфейс равен nil, только к…

🥰18❤1

1 Nov 2026, 09:01 UTC765 views17 reactionsread 9 November 2026

Пропустит ли iota строку с подчёркиванием? Go 1.22+. Что выведет код? package main import "fmt" const ( first = 1 << iota _ second third ) func main() { fmt.Println(first, second, third) } 👾 — 1 2 4 👍 — 1 4 8 🥰 — 0 2 3 ⚡️ — Ошибка компиляции Ответ: 👍 — 1 4 8. iota увеличивается на каждой строке объявления констант, включая строку с _. Пропущенное выражение повторяет 1 << iota, но с новым з…

👍15⚡1❤1

31 Oct 2026, 09:03 UTC822 views20 reactionsread 9 November 2026

Почему у одной строки две длины? Go 1.22+. Что выведет код? package main import "fmt" func main() { text := "GoЯ" fmt.Println(len(text), len([]rune(text))) } 👾 — 4 3 👍 — 3 3 🥰 — 4 4 ⚡️ — 6 3 Ответ: 👾 — 4 3. len(text) считает байты. Латинские G и o занимают по байту, кириллическая Я — два байта в UTF-8. После преобразования в []rune считаются кодовые точки — их три. Это не универсальный способ считать …

👾18❤2

30 Oct 2026, 09:03 UTC787 views10 reactionsread 9 November 2026

Что сделает copy, если срезы перекрываются? Go 1.22+. Что выведет код? package main import "fmt" func main() { values := []int{1, 2, 3, 4} n := copy(values[1:], values[:3]) fmt.Println(n, values) } 👾 — 3 [1 1 1 1] 👍 — 4 [1 1 2 3] 🥰 — Паника из-за перекрытия ⚡️ — 3 [1 1 2 3] Ответ: ⚡️ — 3 [1 1 2 3]. Встроенная функция copy корректно работает с перекрывающимися участками одного массива. Она копируе…

⚡9👍1

29 Oct 2026, 09:01 UTC792 views19 reactionsread 9 November 2026

Что осталось в закрытом канале? Go 1.22+. Что выведет код? package main import "fmt" func main() { ch := make(chan int, 2) ch <- 7 close(ch) first, ok1 := <-ch second, ok2 := <-ch fmt.Println(first, ok1) fmt.Println(second, ok2) } 👾 — 0 false, затем 0 false 👍 — 7 false, затем 0 false 🥰 — 7 true, затем 0 false ⚡️ — Паника при первом чтении Ответ: 🥰 — 7 true, затем 0 false. Закрытие…

🥰17👍2

Showing the 12 most recent of 45 posts we hold for @go_problems_lib. View and reaction counts are the latest single reading for each post, not a live figure, and a recent post is still accumulating both. A view count marked ≈ was rounded by Telegram before we ever saw it — t.me prints views in full below 1,000 and to three significant figures above, so ≈1,200,000 means somewhere between 1,150,000 and 1,249,999. Unmarked counts are exact. Text is reproduced from the public post preview and truncated for length.

Posts recorded as deleted after publishing

We recorded 1 post on @go_problems_lib as deleted — posts this register held that were missing from the channel’s public page on two separate reads, taken from different network addresses at least an hour apart.

A deletion is not wrongdoing. This register can see that a post it held is no longer on the channel’s public page, and when — not why. Expired ad placements, reposts, rotating links and corrections all look the same. This is a count of recorded detections, not an exact total: it misses deletions we could not see, because only a post we held and later re-read inside the page can be seen to go, and it may include a small number of wrong records. How this is measured.

First seen missing
6 November 2026
Most recent seen missing
6 November 2026
Median time before seen missing
3 days
Seen missing in the last 30 days
1

Polls

The 6 most recent of 13 polls we hold for this entry, as Telegram rendered them when we read the post. A poll’s figures keep moving after that, so each one is dated.

19 Oct 2026, 09:02 UTCAnonymous Quiz227 voters

Go 1.23 и новее. Потребитель range по функции завершил цикл через break. yield вернул false. Что обязан сделать итератор?

  1. Запустить новую горутину и повторить yield5%
  2. Повторить последнее значение один раз7%
  3. Прекратить выдачу значений и больше не вызывать yield74%
  4. Продолжить вызовы yield до конца последовательности14%

Shares as published. No per-option vote count is published by Telegram, so none is shown.

15 Sept 2026, 13:40 UTCAnonymous Quiz600 voters

Сколько элементов может быть в бакете у мапы?

  1. 43%
  2. 850%
  3. 1611%
  4. 241%
  5. 326%
  6. Бесконечно30%

Shares as published, totalling 101%. No per-option vote count is published by Telegram, so none is shown.

4 Aug 2026, 09:31 UTCAnonymous Quiz523 voters

❓ Что делает ключевое слово implements в Go

  1. Объявляет, что тип реализиует интерфейс7%
  2. Используется для импорта пакета1%
  3. В Go нет ключевого слова implements89%
  4. Используется для наследования методов3%

Shares as published. No per-option vote count is published by Telegram, so none is shown.

31 Jul 2026, 17:59 UTCAnonymous Quiz501 voters

❓ Что вернёт append при добавлении в nil-слайс

  1. Панику28%
  2. Слайс [1]54%
  3. Ошибку компиляции6%
  4. Пустой слайс12%

Shares as published. No per-option vote count is published by Telegram, so none is shown.

30 Jul 2026, 12:10 UTCAnonymous Quiz458 voters

❓ Сравнимы ли две структуры через ==, если все их поля сравнимы

  1. Нет, структуры сравнивать нельзя21%
  2. Да, поле за полем55%
  3. Только если у них есть метод Equal14%
  4. Только указатели на них10%

Shares as published. No per-option vote count is published by Telegram, so none is shown.

29 Jul 2026, 17:59 UTCAnonymous Quiz377 voters

❓ Чем case на закрытом канале отличается от case на nil-канале

  1. Ничем, они ведут себя одинаково15%
  2. Закрытый всегда готов, nil — не готов никогда66%
  3. Закрытый блокируется, nil — лишь иногда9%
  4. Оба вызывают панику10%

Shares as published. No per-option vote count is published by Telegram, so none is shown.

Percentages only — there are no per-option vote counts here, because Telegram publishes none. The public post preview gives each option’s share and a single voter total, and nothing else. Multiplying one by the other would produce a per-option tally that looks measured and is not: the shares are rounded to whole numbers before we ever see them. We print what was published and leave the column that does not exist empty.

The shares need not add up to 100. Rounding alone puts many polls at 99 or 101. A poll that allows more than one answer per voter runs well past 100 by design, and several here do. The bars are drawn against a fixed 100% track at each option’s own percentage rather than normalised to the total, so a poll that exceeds it shows that it does instead of being quietly rescaled.

Read from the 45 most recent posts we hold, published 22 July 2026 to 9 November 2026. Telegram labels each poll by kind — an anonymous poll, a quiz, a closed set of final results — and that label is reproduced rather than paraphrased.

Forward network

Republishes

Channels on the register whose posts this channel has forwarded.

Built only from forwarded posts we have actually read, on both sides. Coverage is early and deliberately incomplete: a missing link means we have not read the post that would prove it, never that the relationship does not exist. Counts are distinct forwarded posts observed, so they only ever go up as we read more.

Mentions

Named by 6 registered channels — every channel on the register whose own posts have named this one, by its current username or any other username it currently holds, merged from two separately captured readings of the same fact so a namer caught by only one of them is not missed and a namer both caught is not counted twice. A username this channel has since dropped is not matched — that handle may belong to someone else now, and crediting today’s namer to yesterday’s owner would misattribute it.

A mention is a weaker signal than a forward and is counted separately for that reason — naming a channel is not republishing it, and a handle in a post body is easy to place deliberately. The post counts beside each row below are distinct posts in which the handle appeared, from posts we have read on both sides — the “Named by N registered channels” figure above is a different count, of distinct NAMING CHANNELS rather than posts, and is not the sum of the rows under it.

Appears in Telegram’s recommendations for other channels

The reverse of the list above, and a different kind of signal. This does not require this channel to have ever been asked about directly — each row below is a channel we DID ask Telegram about, whose Telegram-generated list happened to include this one. A channel can appear here with an empty list above it, because being named by someone else’s query is independent of having been queried itself.

Библиотека Go-разработчика | Golang
@goproglib · 23,894
Telegram ranks this channel #5 of 91 here — alongside 90 others — read 17 September 2026
Golang
@Golang_google · 40,453
Telegram ranks this channel #9 of 90 here — alongside 89 others — read 30 August 2026
Библиотека программиста
@proglibrary · 77,612
Telegram ranks this channel #31 of 82 here — alongside 81 others — read 19 August 2026
AvitoTech
@avitotech · 25,811
Telegram ranks this channel #57 of 96 here — alongside 95 others — read 14 September 2026
Linux Academy
@linuxacademiya · 28,647
Telegram ranks this channel #83 of 84 here — alongside 83 others — read 9 September 2026
DevOps
@DevOPSitsec · 23,892
Telegram ranks this channel #86 of 90 here — alongside 89 others — read 18 September 2026
Ozon Tech
@ozon_tech · 30,189
Telegram ranks this channel #92 of 98 here — alongside 97 others — read 8 September 2026

This channel appears in 7 seed channels' Telegram-generated recommendation lists in total. Each is Telegram’s list for THAT channel, not this one — see how this is measured.

Cite this entry

A live page changes as we take new readings, so a citation should name the measurement it is based on, not just the URL. The line below cites the subscriber count as measured 8 November 2026 — this entry's latest reading, not the date you are reading this.

“Библиотека задач по Go | тесты, код, задания” (@go_problems_lib), 6,663 subscribers as measured 8 November 2026. Telegram Register, tgregister.com/channel/go_problems_lib.

Full measurement history, CC BY 4.0. Every reading this register holds for this entry, not just the latest one, as a dated, downloadable record: CSV · JSON. Free to use with attribution to tgregister.com. Each file carries its own generation timestamp, which is the figure to cite for exactly when the data was retrieved.