TI-Planet is glad to invite you to compete in TI-Concours 2017 ! Very Happy

The TI-Concours

The TI-Concours is a programming contest on TI calculators, which was created in 2011. It was held once a year from 2011 to 2014, and in 2016, and lets all coders, whether they are experienced or not, challenge themselves by solving programming tasks. It is already the sixth edition of the contest, and no matter your experience in the programming field, it is an great opportunity to compete against other community members from several countries ! ;D

Hall of fame

Note : only TI-Basic z80/ez80 winners are mentioned here.

2011 : Loulou_54
2012 : Torio
2013 : Deep Thought
2014 : m@thieu41
2016 : Ruadh
2017 : maybe you? Very Happy

The TI-Concours in 2017


This year, we decided to make only one category : z80 and ez80 TI-Basic. For those who are not sure of what it is, recall that it is the Basic language which is available on calculators such as a TI-82 Advanced or a TI-83 Premium CE, and a few other compatible calculators.


The contest will be held from March 25th to April 23rd, and will last 30 consecutive days. This year, it is not cut into separate rounds anymore, you will have to manage your time by yourself! Very Happy

What you will have to do

Earlier today, three different tasks were released simultaneously. Each of them focuses on a specific topic:

  • a fun task, that is to say, a game to make;
  • an algorithmic task, which asks you to solve an algorithmic problem in the most efficient way speaking about speed;
  • an optimisation task, which requires to produce a sub-optimal solution to a problem and maximize its score.

The goal is the following: in 30 days, solve at least two tasks as well as you can. Of course, you can solve all three of them, but at the end, the final ranking will be based on people's two best scores. For every solved task you will get a score between 0 and 100, but these scores will be harmonized in order to guarantee the fairest possible ranking.

Download Task 1
Download Task 2
Download Task 3


If you win, you will enter TI-Concours's legend, and you will thus be covered with honor and glory. Very Happy
If you think this is not already enough, you may chose one of the following prizes. The winner choses what he wants to get, the second contestant gets what remains.

First prize:

  • a TI-Nspire CX CAS;
  • a TI-Planet sticker.

Second prize:

  • a TI-83 Premium CE;
  • a TI-Planet sticker.

Furthermore, the winner for every single task will win an additional TI-Planet sticker, and all the contestants that get a strictly positive score will win a TI-Planet premium account. Very Happy

Other remarks

Everybody can compete. However, in previous editions, people with the highest degree didn't necessarily win... Razz
Please note, that you will not be asked advanced knowledge in topics such as mathematics.

You will have to send your programs by e-mail. All the details are written in the tasks' statements. Be sure that you have a link cable in order to transfer your programs from your calculator to your computer. If you are facing issues related to this, you can ask questions on this forum or on the chat.

One last thing: have fun! We are sure that you will learn something from entering this contest. Wink

Good luck to everybody! Very Happy
When I have enough time, I would definitely give it a try! Very Happy
Task 1 errata:
Il n’est évidemment pas demandé de jouer de la musique sur votre calculatrice.

is the exact translation of
Of course, you don’t need to play music on your calculator.

There was probably some transposition in those two lines since the document was translated line by line.
Thank you for reporting this. Smile
The contest has been extended. You still have approximately one week (until April 29th 2017, 23:59 UTC+2).
You still have approximately 23 hours. Smile
Oh god, I've just come across this topic for the first time, a few hours before the deadline Razz
Would have been cool to participate, but real work has been keeping me very busy (apparently so much so that I hadn't even seen this topic go by in March Razz)
Maybe next time! Although it will probably happen around the same time next year and I will most likely be caught up in the same amount of work...
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