>>04093
Сделал на Паскале и с нормальными функциями...

>>04116
Регалии — не аргумент, иначе ты сам-то кто такой, что по проектам, что по вкладу в разработку твоего языка программирования? Отец хуев :)

Я эту книгу видел у друга печатную и открывал наугад в месте, где автор не любит аргументы-флаги по причине нинужно, порвался, закрыл и принялся дискутировать на эту тему с другом, куда больше пользы. Я их тоже не люблю, но что они НИНУЖНЫ — бред же.

В моей реализации длинных чисел сложение и вычитание выполняются совершенно по-разному на самом низком уровне (в столбик) и на самом высоком (operator + vs. operator -), но во всём, что между ними, они полностью аналогичны с точностью до операции, поэтому вместо двух параллельных иерархий вызовов, для сложения и вычитания (а автор предлагает именно это), лучше иметь одну с дополнительным флагом isAdd, пробрасываемым вниз и ветвление по которому if (isAdd) slozhit’_v_stolbik else vychest’_v_stolbik происходит в самом низу.

Во Free Pascal есть место, кажется, с шестью булевскими флагами подряд, связанное с поиском перегрузок функций и его тонкостями вроде «явно задан модуль, поэтому не искать в других модулях, а в остальном как обычно», «на самом деле это аксессор свойства и его видимость проверена по видимости свойства, видимость аксессора не проверять».

В Dungeon Crawl Stone Soup бывают чуть ли не десятки флагов-аргументов, когда поведение атаки зависит от обстоятельств, «а мы по-настоящему атакуем или понарошку, просто чтобы посмотреть, кого заденет», «а это планируется как вредное или полезное действие», «согласился ли пользователь потенциально навредить самому себе».

Вот я не люблю много (>1) флагов подряд как в последних двух случаях, предпочитая (битовые) множества, к тому же лучше читаемые: attack(whom, false, true, true) vs. attack(whom, ATTACK_UNSEEN | ATTACK_TRACE). С другой стороны, они сложнее формируются условно: ATTACK_TRACE по условию cond добавить сложнее, чем написать attack(whom, false, true, cond). Но автор говорит про нинужность, вредность и идеологическую неверность флагов как таковых, то есть в программировании он полный лох и регалиями может подтереться.

>>32097

> стоит составить список из 20-30 подобных вопросов и сочинить приукрашенный ответ на каждый

Action-oriented behavioral interview question examples
1. Describe a situation when you did much more than was expected from you to get the project done. Were your efforts recognized? By whom and how? How did that make you feel?

2. Tell me about a time when you took ownership of a project. Why did you do this? What was the result of you taking the challenge? What could have happened if you did not take ownership?

3. Think about an instance in which you came up with a project idea that was implemented primarily because of your efforts. What was it about? What was its outcome? What was your role?

4. Describe a time when you made a suggestion to improve something on the project that you were working on.

5. Give me an example of the project or initiative that you started on your own. It can be a non-business one. What prompted you to get started?

Behavioral interview questions examples showing ability to adapt
6. Describe a situation in which you met a major obstacle in order to complete a project. How did you deal with it? What steps did you take?

7. Tell me about a time you had to work on several projects at once. How did you handle that?

8. Describe a situation in which you have experienced a significant project change that you weren’t expecting. What was it? How did that impact you, and how did you adapt to this change? How did you remain productive throughout the project?

9. Describe a situation in which you had to adjust to changes over which you had no control. How did you do this?

Communication skills: behavioral interview question examples
10. I’d be interested in hearing about a miscommunication you had with your supervisor. How did you solve it? What was the reason for that? How did you deal with that situation?

11. Tell me about an instance when you had to communicate a really bad piece of news to your supervisor or team members. How did you handle it? What was the outcome?

12. Provide an example of a time when you didn’t agree with other programmers. Did you stand up for something that you believed was right?

13. Tell me about a time when you had to present a complex programming problem to a person that didn’t understand technical jargon. How did you ensure that the other person understood you?

14. Describe a situation in which you felt you had not communicated well enough. What did you do? How did you handle it?

15. Tell me about a situation that you had to speak up and be assertive in order to get a point across that was important for you.

Conflict management behavioral interview questions
16. Tell me about a time when you had a disagreement with another programmer. How did you handle the situation? Were you able to reach a mutually beneficial resolution to that conflict? If not, why were you and your co-worker unable to reach a mutually beneficial resolution? If you knew then what you know now, what would you have done differently to either prevent the conflict, or to resolve it?

17. Tell me about a time when you had to work with a difficult person to accomplish a goal. What was the biggest challenge? How did you handle it?

18. Has there been a time on a project when you disagreed with someone? What did you do about it?

19. Tell me about when you had to deal with conflict within your team. How was the conflict solved? How did you handle that? How would you deal with it now?

Creativity behavioral interview questions
20. Give me an example of a time you had to take a creative and unusual approach to solve a coding problem. How did this idea come to your mind? Why do you think it was unusual?

Decision making behavioral interview questions
21. Give me an example of a time when you were faced with a complex project related matter and you could not decide on the best way to deal with it. What did you do? How did you go about making the decision – lead me through your decision process? If you could make the decision once again, would you change anything

22. Think about an instance in which you made a decision at work that was unpopular. How did you handle it?

23. Give me an example of a project that completely failed. Why do you think it was a failure? Could there be anything done differently in order to turn it into success?

24. Describe a situation in which you worked diligently on a project and it did not produce the desired results. Why didn’t you get the desired results? What did you learn from the experience?

25. Think about a situation when you made a poor decision or did something that just didn’t turn outright. What happened?

Goal orientated behavioral interview questions
26. Provide an example of an important project goal you reached and how you achieved it.

27. Think about an instance in which you worked on and achieved multiple project goals.

28. Describe a circumstance when you were not able to achieve a project goal that was set by your supervisor. How did you handle this situation? What was the outcome?

29. Think about an instance in which you had to depend on others to help you achieve a project goal. How did you feel?

Influence/persuasion behavioral interview questions
30. Tell me about a recent situation at work in which you were able to convince management to accept one of your ideas.

31. Describe a situation in which you experienced difficulty in getting others to accept your ideas? What was your approach? How did this work? Were you able to successfully persuade someone to see things your way?

32. Have you ever had to “sell” an idea to your project team? How did you do it? Did they “buy” it?

Planning, priority setting, time management behavioral interview questions
33. Tell me about a situation when you were responsible for project planning. Did everything go according to your plan? If not, then why and what kind of counteractions did you have to take?

34. Tell me about a situation when you were responsible for project planning. Did everything go according to your plan? If not, then why and what kind of counteractions did you have to take?

Problem-solving behavioral interview questions
35. Tell me about a situation when you made a mistake at work. What happened exactly and how did you deal with it? What steps did you take to improve the situation?

36. What is the biggest problem you have faced on projects so far and how did you solve it? What made the problem difficult to resolve? What was the result? Would you do anything differently now?

37. Give me an example of a time when you noticed a small problem before it turned into a major one. Did you take the initiative to correct it? What kind of preventive measure did you undertake?

38. Walk me through a difficult/complex problem/project you encountered. How did you decide what to do first? What information did you need? What obstacles did you face? Which ones were you able to overcome? Did you have to ask for help?

Teamwork behavioral interview questions
39. Tell me about a time when you worked with someone who was not completing his or her share of the work. How did you handle the situation? Did you discuss your concern with your coworker? With your manager? If yes, how did your coworker respond to your concern? What was your manager’s response?

40. Describe a situation where you had to work in a team that didn’t get on very well. What happened? What did you do and what role did you take? How did the situation evolve?

41. Describe a team experience you found disappointing. What would you have done differently to prevent this?

42. Give me an example of working cooperatively as a team member to accomplish an important goal. What was the objective? To what extent did you interact with other project members?

43. Tell me about the most difficult situation you have had when leading a team. What happened and how did you handle it? Were you successful? What was the most important thing you did?

Working under pressure behavioral interview questions
44. Describe a situation when you worked effectively under pressure. How did you feel when working under pressure? What was going on, and how did you get through it?

45. Tell me about a situation when you had problems working under pressure. How did you handle that situation? Did you decide to ask for support? How and when did you ask for help?

46. Give me a recent example of a stressful situation on the job. What happened? How did you handle it?

>>31708
глава 1

задача:
по координатам пользователя и заданному радиусу вывести на карте все близлежащие объекты - жральни, сральни, бордели, музеи, театры и прочее

функциональные требования:
- юзер задаёт радиус до 20км (инкрементами по 500м)
- владельцы объектов сами добавляют о себе инфу (добавленные объекты смогут появляться на карте со следующего дня)
- юзер может кликнуть на объект на карте и получить детальную инфу о нём

нефункциональные требования:
- низкий пинг
- приватность (не слить местоположение юзеров)
- высокая надёжность и маштабируемость

прикинем нагрузку на сервис:
давай допустим 100 миллионов пользователей в день и 200 миллионов объектов, по 5 запросов в день от пользователя
получим 5000 запросов в секунду. а чо по час-пику?

окей, начнём решение с апишки:
GET /v1/search/nearby
аргументы - долгота и широта юзера, радиус
результат - джейсончик со списком близлежащих объектов

GET/POST/PUT/DELETE /v1/businesses/:id?
апишка для добавления/изменения/удаления объектов

модель данных:
объекты меняются редко, поэтому соотношение чтения/записи будет оче высоким. имеет смысл иметь несколько рид-онли копий базы только для чтения
табличка для объектов: тут всё просто, храним business_id, адрес, координаты, и тд
географический индекс: для эффективного отображения местоположения юзера в список близких объектов

выбираем алгоритм для вычисления близлежащих объектов:
- наивный поиск перебором. просто проходим по всему списку (200,000,000) объектов и фильтруем ближайшие.
неэффективно даже если индексировать широту и долготу до усрачки - всё равно получается пересечение двух огромных множеств 5000 раз в сек
- геохэш, разбиваем весь мир на кусочки, придаём каждому последовательность битов и кодируем в base64 (второй пик)
чем ближе кусочки, тем больше будет совпадать префикс хеша
есть крайние случаи когда префиксы различаются для соседей - поэтому нужно читать все примыкающие кусочки
- Google S2. самый выёбистый алгоритм, используется тиндером и конечно гугл мапсом.
приображает 2Д пространство в 1Д линию (кривая Гильберта) хорошо сохраняя истинную дистанцию между объектами
для 40 минутного интервью слишкам сложна, поэтому не рекомендуют

победитель - геохеш

теперь маштабируем базу данных:
все 200 миллионов объектов не поместятся в одну базу - будем шардировать по айдишке
для гео-индекса у нас 2 варианта:
- храним геохеш вместе со списком айдишек объектов в одной строке
- либо делаем композитный ключ из геохеша и айдишки
композитный ключ лучше - проще операции над объектами + ненадо локать строку

гео-индекс может уместится на одной машинке - с шардингом не спешить
делаем несколько реплик что бы справится с 5к запросов

кеширование:
будем кешировать объекты по ключу геохеша - хорошо поможет в час пик
можно подумать когда инвалидировать кеш либо просто весить таймер на каждый ключ - для этой задачи немедленная согласованность не нужна

боремся с пингом:
read-only компоненты системы задеплоим сразу в несколько регионов земного диска - юзер будет обращатся к ближайшему