Please read the new rule regarding the restriction on the use of AI tools. ×

Please help: Road To Home
Difference between en1 and en2, changed 56 character(s)
http://mirror.codeforces.com/contest/721/problem/E↵
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Couldn't understand the solution even after reading the editorial. Someone please help.↵
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UPD: In hope that somebody might explain the solution :)

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en2 English rrepeat 2016-10-04 16:05:24 56 Tiny change: ' help.\n\n' -
en1 English rrepeat 2016-10-03 14:32:00 163 Initial revision (published)