Overview

A problem is what users will be providing solutions for. Each problem shares settings from its Assignment Settings i.e. All problems in an assignment will have the same start and end time.

Problem Types

We currently support three types of programming problems:

  1. Unit

  2. Input / Output

  3. Custom

  4. Dynamic

General Settings

Title

The name of the problem

Question Prompt

Should provide information on what the problem is about and how to submit.

Points

How much the problem is worth. The total points for the assignment will be the sum of points for each problem.

Execution Time

To limit how long the submission can run for, you can specify a max execution time in seconds. The max execution time will be divided evenly between each test case. For example, if the max execution time was 10 seconds and there are 10 test cases, then each test case gets 1 second of execution time.

Period

To limit the rate which a submission can be made, you can specific a time in seconds. The submitter will receive an error message denoting how much time they have left before they can submit again.

Enable Inline Editor

The inline editor is accessed by clicking on the Solve Here button in the submission view. It allows for direct editing and submission of code.

Enable Upload

Accessed by clicking on the Upload button in the submission view. Allows for a single file or a zip of files to be submitted

Enable Github

Accessed by clicking on the Submit From Github button in the submission view. Allows for a Github repository to be submitted.

Enable CDE

Accessed by clicking on the Submit from Editor button in the submission view. Allows for files to be submitted from Kodethon’s online editor.

Submission File Structure

Below is an outline of the file structure of a submission. Please note that exact path of the submission will be determined after submission is made and will be placed under /home/kodethon/.staging.

metadata.json
autograder/
  FILES_IN_PROBLEM_AUTOGRADER_FOLDER
output/
  stdout
  stderr
submission/
  SUBMISSION_FILES

metadata.json

The metadata.json file will be of JSON format as shown below:

{
    first_name: "John",
    last_name: "Doe",
    email: "sample@gmail.com",
    submission_time: "2017-11-26 23:21:02 -0800",
    deadline: "2017-11-30 23:21:02 -0800",
    previous_submissions: [
        {
            output: "Hello World!",
            cache: "<DATA DEFINED BY YOU>",
            remaining_attempts: 5,
            created_at: "2017-11-25 23:21:02 -0800",
            score: 100
        },
        ...
    ],
    on_start: {
        "description": "<DESCRIPTION OF PROBLEM>",
        "created_at": "2017-12-08T05:31:49.093Z",
        "updated_at": "2017-12-13T11:19:11.970Z",
        "data": "<DATA YOUR PROBLEM MAY NEED>"
    }
}

autograder

The specified test command will be executed from within the autograder folder. All files in /home/kodethon/PROBLEM_NAME/autograder will be exposed here as a soft link.

output/stdout

Contains the stdout of the test command.

output/stderr

Contains the stderr of the test command.

submission

When a submission is made, Kodethon will place the submission files in the submission folder. That is, references to the submission files should be made via ../submission/FILE_NAME.

Accessing Problem Files

The files can be accessed by clicking on the the Editor section as highlighted in red below.

PreviousFree ResponseNextUnit

Last updated