http://codeforces.com/contest/157/problem/D
or anyone comment with a link of a tutorial.
HELP in a problem without tutorial
http://codeforces.com/contest/157/problem/D
or anyone comment with a link of a tutorial.
Rev. | Lang. | By | When | Δ | Comment | |
---|---|---|---|---|---|---|
en1 | _QWOiNYUIVMPFSBKLiGSMAP_ | 2017-11-25 21:19:57 | 134 | Initial revision (published) |