Recently I started practicing on USACO(contest site) and I realized that the oldest ones don't have the submit option with them. Instead there are the test data with input and output files in a .zip file. So how can I easily run all the tests and match them with the output files? Obviously I could run them one by one and then compare the two output files, but that is going to take a long time because some problems have quite a lot of files. Any help please?