Faced a challenge dealing with "persistent tries",as told by gkcs.Does anybody here have a good tutorial link regarding that.

PROBLEM LINK: https://www.codechef.com/MAY17/problems/GPD

Please stop downvoting the posts without even reading it,in order to maintain a healthy platform to learn(even for newbies) :)

I seriously need help on this 510D - Fox And Jumping ,can anybody give a detailed solution of this problem.

Thanks a lot in advance!