Kattis is an online service that provides students with programming problems to solve and a system to check if their solutions are correct. Anyone can create an account, pick a problem, write a solution and submit it to see if it is correct. The service will respond with a judgment usually within 1 minute.
The service is also used by programing contests and by college faculty for their courses. I’ve created a Kattis course that includes a set of problems for you to solve during this course.
The first thing you need to do is create a Kattis account. You can do so at the following URL: https://bridgewater.kattis.com/register
Next, you need to register as a student in my CSCI-105 Kattis course by going to https://bridgewater.kattis.com/courses/CSCI-105/Fall2016/register and entering the Registration Key “CSCI-105”.
You can view the list of problems for the course here: https://bridgewater.kattis.com/courses/CSCI-105/Fall2016/problems.
You will be given a separate handout specifying when each of the problem groups are due.
Writing a Solution
When you are working on a solution to a Kattis problem, keep the Kattis Java guidelines in mind. The guidelines can be found here: https://open.kattis.com/help/java.
Some things to remember are:
- Your program should read its input from standard input and produce output on standard output.
- Kattis will inspect the exit code of your program. If it is non-zero, she will judge your submission as Run Time Error. So don’t call exit() with a positive number as the argument. Always return 0.
- Uncaught java exceptions will almost always be judged as Run Time Errors with some extra information.
© 2017, Eric. All rights reserved.