Telegram Contests
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Here we announce Telegram coding contests in Android Java, iOS Swift, JS, C/C++. Discussion: @contests
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Aptitude Test Contest

Status:
πŸ† Contest ended. View Results

Task:

Create a set of 3 Quizzes that can be used to test a person's knowledge of the English Language, their Mathematical Ability and their capacity for Spatial & Logical Thinking.

Winners will be rewarded from the remaining ~€250,000 Quiz Contest prize pool.

Full details:
https://contest.com/docs/aptitude-tests

FAQ:
https://contest.com/docs/aptitude-tests#frequently-asked-questions

You must confirm your availability and register to participate. The evaluation task for entry to this contest will be held on the 9th of January 2021, at 4 pm UTC.
Telegram Contests in 2021

UPD: See this post for latest contest news

πŸ† 2021 iOS Interface Animation Contest – January 15
πŸ† 2021 Android Interface Contest – January 30
πŸ† 2021 Data Clustering Contest – January 30
πŸ†Audio and Video Stream Processing for Calls – to be announced

πŸ†2021 Animated Sticker Contest – March 1
πŸ† GIF Animation Contest – March 15

The total prize fund for Telegram contests in 2021 is expected to reach $1,000,000.

Additional details about each of the contests will be published on this channel. You can already sign up for participation using @ContestBot.

Good luck and Happy New Year!
The evaluation task for the Aptitude Test contest is now finished. Huge thanks to everyone who took their time to participate.

We will publish the results and the answers for the Quizzes as soon as we finish the evaluation. Please be patient, this can take up to several days.

For everyone who missed this, don’t worry. There will be other contests in the future. Stay tuned.
The iOS Animation Contest 2021 has started!

Prize fund: $50,000 for the first round

Deadline: 23:59 on January, 31 (Dubai Time)

Task: implement iOS animations in Telegram for iOS based on the mockups provided, optimize them to run on older devices, and create an editor that allows tweaking their parameters.

Details:
https://contest.com/docs/ios2021-r1
Results for the Aptitude Test Contest Evaluation Task have been sent out to participants.

We decided to accept all candidates who achieved any of the following criteria, based on the number of Correct Answers:
β€’ 26+ in Cognitive and at least 16 in Language
β€’ 25+ in Cognitive and at least 19 in Language
β€’ 29+ in Language and at least 20 in Cognitive

Everybody is now able to see their full results, read explanations for each of the questions and see how they compare to others here:
https://quiz.directory/course/Ou43cqIg

If you were successful, and have confirmed your participation, welcome to Phase 1 of the contest. Please read the full document below, and good luck!
https://contest.com/docs/aptitude-tests-phase-1
Two new contests – in Android Java and Data Clustering – are starting today. The details are coming in a few hours. Stay tuned.
@ContestBot is now ready to accept submissions for the iOS Animation Contest.

- Place your submission into a private repository on GitHub, derived from the Telegram-iOS repository.
- Open @ContestBot, send /start, choose 2021 iOS Contest, and follow the steps to submit the link to your last commit.

The bot will give you the name of our special account which you must add to your private repository so that we can check your submission.

Remember, you have until 23:59 Dubai time on January, 31 to submit your link. Good luck!
Data Clustering Contest 2021, Round 1

πŸ† Round 1 ended. View Results
πŸ† Round 2 is in progress!

Prize fund:
$50,000 – Round 1
$50,000 – Round 2

Deadline: 23:59 on February, 14 (Dubai Time)

Task: create a C/C++ library that can determine the language and topic of a Telegram channel based on provided data.

Details: https://contest.com/docs/dc2021-r1
Android Contest 2021

Status:
πŸ† Round 1 ended. View Results
πŸ† Evaluating Round 2 results. View Submissions

Prize fund: $60,000 for the first round.

Deadline: 23:59 on February, 14 (Dubai Time)

Task: Identify and fix imperfections in Telegram for Android – glitches, bugs, sloppy animations, instances of slow speed. Your work should result in meaningful and noticeable improvement from a user’s perspective.

This is a public reincarnation of our 2019 contest, now available for everyone.

Details: Download the source code of Telegram and fix the imperfections you identified. On the final day of the competition, compile your own version of Telegram and upload the APK to @ContestBot, together with a link to your fork’s pull request on GitHub and a description of improvements implemented.

The more imperfections / glitches / bugs you identify and fix, the higher the reward (provided the submitted code follows the same style as the existing code base). The gravity of fixed issues and the difficulty of eliminating them will be taken into account.

You may also improve existing functionality. A sample task of this type could include rewriting the camera module used in the attachment menu and for recording video messages using Camera 2 API or CameraX, while ensuring backward compatibility with Android 4.x.

You will have to proactively search for issues (potentially getting feedback from users/designers/testers or checking out Bugs and Suggestions) and find creative ways to fix imperfections without causing negative side effects to Telegram’s performance or usability.
We have received 19 submissions for the iOS Animation Contest. Our judges are evaluating them, stay tuned for updates.
A new test data set has been added for the Data Clustering Contest:
https://contest.com/docs/dc2021-r1#source-data

Unlike the initial data set, the new set contains channel descriptions. Note that your algorithm must be able to produce results regardless of the presence or absenсe of this data.
A third test data set has been added for the Data Clustering Contest:
https://contest.com/docs/dc2021-r1#source-data
3.5 hours remain for submissions to the Aptitude Test Contest.

The deadline is 2021-02-08 at 23:50:00 (Dubai time, check local time here).

Contestants can submit their work to @QuizBot, using the /ContestCourse command. Full instructions here.
We received 81 submissions (243 Quizzes) for the Aptitude Test Contest.

The next Phase will start soon.

Future information for this contest will be posted to @AptitudeTestContest, so participants should subscribe there if they haven't already.
A fourth test data set has been added for the Data Clustering Contest:
https://contest.com/docs/dc2021-r1#source-data
Contestants are now welcome to submit their apps to @ContestBot.

Android Contest: choose '2021 Android Contest', then upload your APK and add a link to your code in a public repository on GitHub. (After all submissions are published on contest.com, we will ask you to add a comment to your submission with a list of fixes/improvements and relevant commits.)

Data Clustering Contest: choose '2021 Data Clustering Contest', then upload your archive.

The deadline for both contests is 23:59 today (Dubai Time).
We received 36 submissions for the Android Contest and 62 submissions for the
Data Clustering Contest.

Submissions for the Android contest are already available on contest.com:
https://contest.com/android2021-r1

We request all Android contestants to add a comment to their submission with a list of fixes and improvements they implemented (including links to the relevant commits).

Submissions for the data clustering contest will become available soon.