Can you write codes by just understanding a programming? We think the answer is NO. To gain an experience by anwer questions, those skill can help you to write codes.
A new learning web site
Iterative learning
A learning style that learns all the way evenly will obscure memories and become easy to forget. In this site, we have a goal to acquire the clear code memory by learning iteratively. For the detail of the method you can find at Learning method .
Free for use
You can use this site for free.
This site has released the results of the research. It is not for commercial purposes, so it can be used for free.
For learners
Please solve problems as much as you can.
We think that the power to acquire in the process of solving problems is important. Please try as many problems as possible by taking advantage of free time etc.
For teachers
You can create a public / private question book. It's free.
Problems that you want to let many people learn can be published as a Public workbook. If you want the workbook that can only be answer by specific leaners such as classroom use, it is possible to create it as a Private workbook.