Channel
@Leetcode_fans
On this record: Growth · Engagement · What this channel posts · Reactions · Advertising · Posts · Citations · Telegram's recommendations · Cite this entry
9,453subscribers
+7 since we began measuring on 7 August 2026
Risers and fallers across the register · movement among entries of 3,162–10,000.
| Telegram ID | -1001570297240 |
|---|---|
| Type | Channel |
| Username | @Leetcode_fans |
| Description | Сообщество пользователей-фанатов LeetCode. 🦾 Ссылка для друга: https://t.me/+fhGikrkptrpkYmIy По всем вопросам: @mascarov_valentin или @adv_and_pr НЕ являемся официальным каналом leetcode.com. №4974320675 |
| Created | Between 1 August 2021 and 31 January 2023— estimated from Telegram’s id allocation, not measured. How this range is calculated. |
| First recorded | 7 August 2026 |
| Last confirmed live | 10 August 2026 |
| Measurements held | 4 |
| Confirmed unchanged | 1 time, most recently 10 August 2026 |
| On Telegram | t.me/Leetcode_fans |
| Measured (UTC) | Subscribers | Change |
|---|---|---|
| 10 Aug 2026, 10:50 | 9,453 | +8 |
| 7 Aug 2026, 18:25 | 9,445 | -1 |
| 7 Aug 2026, 09:30 | 9,446 | no change |
| 7 Aug 2026, 09:22 | 9,446 | first reading |
20 posts held, back to 19 February 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 14 pagesof Telegram’s post history, 20 posts per page.
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 2 of 3 measured posts that carry a reaction reading, and over those same posts' views.
| Window | Rolling 30 days · latest post in window 23 July 2026 |
|---|---|
| Posts held | 20 (19 February 2026 – 23 July 2026) |
| Views total | 3,990 |
| Reactions total | 2 |
| Forwards / comments | not exposed by the public surface — not measured, not estimated |
| Readings taken | 12 Aug 2026, 15:09 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.
Lifetime counters from Telegram’s own channel header, read 12 August 2026 — not the date at the top of this page, which is when the subscriber count was last read. A count marked ≈ was rounded by Telegram before we ever saw it — t.me prints these counters in full below 1,000 and to three significant figures above, so ≈142,000 means somewhere between 141,500 and 142,499.
31 reactions across 15 posts, in 3 distinct kinds. The most used accounts for 64.5% of them.
| Reaction | Count | Share | Share, drawn |
|---|---|---|---|
| 👍 | 20 | 64.5% | |
| ❤ | 9 | 29.0% | |
| 🤔 | 2 | 6.45% |
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 15 of the 20 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 31reactions in total: the kind of figure the paragraph above means by “a reaction total printed elsewhere on the page”.
Measured over the 20 most recent posts we hold, published 19 February 2026 to 23 July 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.
An ad marker, not a judgement about a post. A post is counted here because it carries one of two explicit markings: an erid token, which Russian law has required on paid placements since 2022 and which is issued against a specific advertising contract, or a #реклама / #ad hashtag in the body, which is the channel declaring it itself. The first is documentary; the second is a self-declaration and is weaker. No classifier reads the text and decides — nothing on this site guesses that a post is an advertisement.
This is a floor, and it can only ever be a floor.A channel that runs paid placements without marking them produces no marker for us to count, and an unmarked ad is indistinguishable from an ordinary post on the public surface. The ad load above therefore means “the share of posts that declared themselves”, never “the share of posts that were paid for”. A low figure is not evidence of a channel that runs few ads.
Both figures are medians, and no ratio between them is published. Each is a view reading that actually occurred on a post, picked by percentile_disc rather than averaged, so one viral post cannot move it and no interpolated value is invented between two readings. The sample on one side is under five posts, which is too thin to compare. The two figures are shown side by side with the count behind each, and deliberately not divided into a headline like “ads get x% fewer views” — an arithmetic that is easy to print and, at this sample size, means nothing.
| erid | Posts | First seen | Last seen |
|---|---|---|---|
| 2VtzquZx6p5 | 1 | 7 July 2026 | 7 July 2026 |
| 2W5zFGRsopu | 1 | 16 June 2026 | 16 June 2026 |
| 2W5zFGrfSAM | 1 | 20 July 2026 | 20 July 2026 |
A token repeated across several posts is one advertising contract placed more than once, which is what the identifier is for. The strings are reproduced exactly as they appeared in the post or in its click-through URL and are not validated against any registry — we record the marker a channel published, and whether it resolves to a real contract is a question for the register that issued it.
Measured over the 20 most recent posts we hold, published 19 February 2026 to 23 July 2026. Views are the latest single reading held for each post, and any reading at or above 1,000 is rounded by Telegram to three significant figures.
Jump Game II Сложность задачи: средняя Условие: Получив массив неотрицательных целых чисел nums, вы изначально позиционируетесь в первом индексе массива. Каждый элемент массива представляет максимальную длину прыжка в этой позиции. Ваша цель - достичь последнего индекса за минимальное количество прыжков. Вы можете предположить, что вы всегда можете добраться до последнего индекса. Примеры: Ввод: nums = [2,3,1,1,4]…
👍1
Перестановки Сложность задачи: Средняя Условие задачи: Дан массив nums различных целых чисел. Требуется вернуть все возможные перестановки. Вы можете вернуть ответ в любом порядке. Пример: Ввод: nums = [1,2,3] Вывод: [[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,1,2],[3,2,1]] Ввод: nums = [0,1] Вывод: [[0,1],[1,0]] Решение задачи
❤1
Как получить оффер в Яндекс, Сбер, МТС и другие крутые компании? На фото ребята из моего комьюнити, где уже больше 220 frontend-разработчиков. Все они успешно устроились в крутые компании и получили офферы от 300 тыс рублей 🫂 👋 Привет, меня зовут Тихон, я действующий Frontend-разработчик и ментор. За руку довожу до оффера в Big Tech и остаюсь рядом на испытательном сроке. В их жизни больше нет бесконечных скучных …
Целое число английскими словами Сложность задачи: Трудная Условие задачи: Преобразуйте неотрицательное целое число num в его представление английскими словами. Пример: Ввод: num = 123 Вывод: "One Hundred Twenty Three" Ввод: num = 12345 Вывод: "Twelve Thousand Three Hundred Forty Five" Решение задачи
❤3👍1
Лучшее время для покупки и продажи акций Условие задачи: Вам дан массив prices, где prices[i] — цена данной акции на i-й день. Вы хотите максимизировать свою прибыль, выбрав один день для покупки одной акции и выбрав другой день в будущем для продажи этой акции. Верните максимальную прибыль, которую вы можете получить от этой сделки. Если вы не можете получить никакой прибыли, верните 0. Пример: Ввод: prices = [7…
👍2
Сумма минимумов подмассивов Сложность: Средняя Условие задачи: дается массив целых чисел, необходимо посчитать сумму минимумов подмассивов, ответ может быть большим, необходимо посчитать результат по модулю 10^9 + 7. Пример: Ввод: arr = [3,1,2,4] Вывод: 17 Объяснение: Подмассивы: [3], [1], [2], [4], [3,1], [1,2], [2,4], [3,1,2], [1,2,4], [3,1,2,4], минимумы этих подмассивов: 3, 1, 2, 4, 1, 1, 2, 1, 1, 1, которые…
Хайлоад: производительность и планирование мощностей Приглашаем на практический курс для Middle/Senior-разработчиков, техлидов, архитекторов, EM и CTO, которые хотят не просто “знать про хайлоад”, а руками разобраться, как работают производительность, нагрузочное тестирование и масштабирование. Будем выжимать 20–100K RPS из своих сервисов на своей инфраструктуре, строить latency/RPS-диаграммы, искать ограничения в …
🤔2👍1
Перенос указателя вправо Сложность: Средняя Условие задачи: дается бинарное дерево, необходимо перенести каждый указатель на следующий узел на соответствующий правый правый элемент на текущем уровне либо же передать указатель на NULL в случае отсутствия узла. Пример: Ввод: root = [1,2,3,4,5,null,7] Вывод: [1,#,2,3,#,4,5,7,#] Решение задачи
👍1
Сумма вдоль столбцов Сложность: Средняя Условие задачи: дается квадратная матрица, необходимо вычислить минимальную сумму вдоль столбца. Есть условие на движение вдоль столбца есть ограничение: можно перемещаться на ячейку вниз лишь по диагонали или строго вниз. Пример: Ввод: matrix = [[2,1,3],[6,5,4],[7,8,9]] Вывод: 13 Объяснение: *во вложении Решение задачи
👍3
День сурка frontend-разработчика Зарплата стоит, скучные задачи день за днем, календарь забит созвонами, которые не влияют вообще ни на что. Откликаешься на вакансии, а в ответ тишина либо какие-то мутные конторы. На собесах вместо нормальной оценки навыков цирк с алгоритмами на скорость, как будто ты на олимпиаде, а не работу ищешь. И самое неприятное, пока ты варишься в этом болоте, кто-то спокойно проходит собе…
Ряд клавиатуры Сложность: Лёгкая Условие задачи: дается массив из строк, необходимо вернуть те строки из массива, которые могут быть набраны лишь при использовании знаков из одного ряда. Пример: Ввод: words = ["Hello","Alaska","Dad","Peace"] Вывод: ["Alaska","Dad"] Объяснение: Ввод: words = ["omk"] Вывод: [ ] Решение задачи
👍2❤1
Возрастающая подпоследовательность наибольшей длины Сложность: Средняя Условие задачи: даётся массив, необходимо вычислить наибольшую длину строго возрастающей подпоследовательности. Пример: Ввод: nums = [10,9,2,5,3,7,101,18] Вывод: 4 Объяснение: подпоследовательность [2,3,7,101] имеет наибольшую длину. Решение задачи
👍2❤1
Showing the 12 most recent of 20 posts we hold for @Leetcode_fans. 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.
Names
Channels on the register whose handles appear in this channel's posts.
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.
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.
This channel appears in 1 seed channel's Telegram-generated recommendation list in total. Each is Telegram’s list for THAT channel, not this one — see how this is measured.
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 10 August 2026 — this entry's latest reading, not the date you are reading this.
“LeetCode Community” (@Leetcode_fans), 9,453 subscribers as measured 10 August 2026. Telegram Register, tgregister.com/channel/Leetcode_fans.
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.