Text-based programming tasks - code submission

This type of task only features in the Navigator, Pathfinder and Trailblazer challenges. The format will be familiar to students who have taken part in other programming competitions.

A question is presented with an input and output specification and students write a solution in one of the supported programming languages. It is recommended that students write and test their code off-line in an IDE of their choice. When the code has been tested it can be copied into the competition system. After the code is submitted, it is compiled (if required) and then several test files are run. A percentage score is displayed as feedback showing how many tests were passed. The student can then upload and submit another file. All submissions are saved and, when the challenge is marked, the highest score achieved is saved.

If you are unfamiliar with how to use the system, here is a brief introduction:

(8.5min screencast, opens in a new window)

Example 1 - Hello, World!
Example 2 - Postfix
Example 3 - Cat Words