In this interview, you will be designing a Ticket Queue System that ensures fair and efficient ticket purchasing in high-demand scenarios. The system should be able to handle large volumes of concurrent users, place them in a queue, and allow them to purchase tickets once their turn arrives.
You will be expected to discuss system components, architecture, scalability, and trade-offs. You are free to use any technology choices you deem appropriate and should justify your decisions.
| 10 ┌───┐ 5 | |
| ┌───────┤ A ├──────┐ | |
| │ └───┘ │ | |
| ┌─┴─┐ 4 ┌─┴─┐ | |
| │ B ├──────────────┤ C │ | |
| └─┬─┘ └─┬─┘ | |
| │ │ | |
| 2│ │ 14 |
| 0x747bE043AF4C0839EF2b98a53B4F165eD2676E4D |
| #!/usr/local/bin/node | |
| const { soliditySha3 } = require("web3-utils"); | |
| const answer = | |
| "0x820b25046cc144c5c0cff21af15e3387f538c5278cb097a77599041182b8ca17"; | |
| const disarmCode = | |
| "A Yuletide number - 0x?2CD?b3a2DEDCb?b???E?Ca2????C??C2bCba?DE2D?C???????"; | |
| const missingChars = "gcg2efdgaebg3g2g3gadbc"; |
| (function (global, factory) { | |
| typeof exports === 'object' && typeof module !== 'undefined' ? factory() : | |
| typeof define === 'function' && define.amd ? define(factory) : | |
| (factory()); | |
| }(this, (function () { 'use strict'; | |
| var looper = function looper(callback) { | |
| var n = 2000000; | |
| while (n > 0) { |
| class MyElement extends GluonElement { | |
| connectedCallback() { | |
| super.connectedCallback(); | |
| loadingService.load().then(() => { | |
| this.loaded = true; | |
| }) | |
| } | |
| template() { |
| :root { | |
| --ease-in-quad: cubic-bezier(.55, .085, .68, .53); | |
| --ease-in-cubic: cubic-bezier(.550, .055, .675, .19); | |
| --ease-in-quart: cubic-bezier(.895, .03, .685, .22); | |
| --ease-in-quint: cubic-bezier(.755, .05, .855, .06); | |
| --ease-in-expo: cubic-bezier(.95, .05, .795, .035); | |
| --ease-in-circ: cubic-bezier(.6, .04, .98, .335); | |
| --ease-out-quad: cubic-bezier(.25, .46, .45, .94); | |
| --ease-out-cubic: cubic-bezier(.215, .61, .355, 1); |
| https://docs.google.com/presentation/d/1xLqZ6FX5_BLfDtLtCi5Wj4E_n5OI3TiaZBQkkt9bjts/edit?usp=sharing |
| [Settings] | |
| [Hotkeys] | |
| PTT= | |
| ArmySelect= | |
| ControlGroupAppend0=Shift+ForwardMouseButton | |
| ControlGroupAssign0=Control+ForwardMouseButton | |
| ControlGroupRecall0=ForwardMouseButton | |
| IdleWorker=Grave | |
| TargetChoose=LeftMouseButton,Equals,D,Z,S,E,R,C |
| mongo:3.2 --configsvr --replSet blobConfig --dbpath /data/db --bind_ip mongo-blob-config-3 --port 27017 | |
| 2016-04-25T08:41:52.532+0000 I CONTROL [initandlisten] MongoDB starting : pid=1 port=27017 dbpath=/data/db 64-bit host=mongo-blob-config-3 | |
| 2016-04-25T08:41:52.532+0000 I CONTROL [initandlisten] db version v3.2.5 | |
| 2016-04-25T08:41:52.532+0000 I CONTROL [initandlisten] git version: 34e65e5383f7ea1726332cb175b73077ec4a1b02 | |
| 2016-04-25T08:41:52.532+0000 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.1e 11 Feb 2013 | |
| 2016-04-25T08:41:52.532+0000 I CONTROL [initandlisten] allocator: tcmalloc | |
| 2016-04-25T08:41:52.532+0000 I CONTROL [initandlisten] modules: none | |
| 2016-04-25T08:41:52.532+0000 I CONTROL [initandlisten] build environment: | |
| 2016-04-25T08:41:52.532+0000 I CONTROL [initandlisten] distmod: debian71 | |
| 2016-04-25T08:41:52.532+0000 I CONTROL [initandlisten] distarch: x86_64 |