Input/Output is not via file operations. Please use StdIn/StdOut instead.
You can enter through Java or C++ with respective links.
After you write your code in selected language and hit "Check" button, the system will provide feedback regarding how many tests passed/failed including the run time.
Please submit your mature solutions in order not to overload its capacity.
Mock exams are setup for 4 hours as in an official USACO contest. Time will start as soon as you hit the start button. You can submit your code and get feedback during this 4 hours time. Suggested example solutions are provided at the end when you submit and finish.
