On-Line Training Resources

NEW RESOURCE: A group of dedicated former finalists has put together a new on-line training resource: the USACO Guide.

The legacy USACO training pages provide hundreds of hours of free instruction and practice problems to improve your programming and problem-solving skills. (Note: we are in the process of migrating the training pages to our new system; in the meantime, they are hosted on our old system, where brand new usaco.org user accounts are not recognized -- you may need to create a separate account in the meantime to access the training pages.)

Historical Contest Problems

Another excellent resource for training is our archive of historical contest problems, shown below. Click on a contest to see the lineup of problems in each division for that contest. Solutions are available, as is the ability (if logged in) to submit your own solutions to receive feedback on their correctness.