Codeforces celebrates 10 years! We are pleased to announce the crowdfunding-campaign. Congratulate us by the link ×

can anyone help with solving this question ?
Difference between en1 and en2, changed 4 character(s)
can anyone help with solving this question of codechef , which iI am unable to solve?↵
here is the link to the question [ZERO THE PATH](↵
thx in Advance.


  Rev. Lang. By When Δ Comment
en2 English nqs_1 2019-12-13 10:28:12 4
en1 English nqs_1 2019-12-13 10:27:43 248 Initial revision (published)