I don’t have Pro subscribtion, but, as I far as I know, contest problems have 1-day free Pro functions. So I am trying to see failed test cases using this tool, but it shows some mistake. I really wanna know where it failed, as this problem involves some new algorithms for me and I want to solve it without the help of Edutorial.
Btw, here is my code: CodeChef: Practical coding for everyone
Thanks for reporting. This is one of the few problems where the WA feature won’t work because of input format. We have now disabled the feature for this.