→ About Contest
Andrew Stankevich — Gold and Silver Medalist of ACM-ICPC, associate professor in Saint Petersburg University ITMO, SPb NRU ITMO teams coach, that became ACM-ICPC World Champions for 5 times. His contests have been used in Summer and Winter Petrozavodsk Camps since 2003. The contests are considered to be among the most interesting and well-prepared contests used at this international training camp. Contests materials are distributed under Creative Commons 4.0 Attribution license.
→ Virtual participation
Virtual contest is a way to take part in past contest, as close as possible to participation on time. It is supported only ICPC mode for virtual contests.
If you've seen these problems, a virtual contest is not for you - solve these problems in the archive.
If you just want to solve some problem from a contest, a virtual contest is not for you - solve this problem in the archive.
Never use someone else's code, read the tutorials or communicate with other person during a virtual contest.
→ Practice?
Want to solve the contest problems after the official contest ends? Just register for practice and you will be able to submit solutions.
→ Contest materials
Problems
| # | Name | ||
|---|---|---|---|
| A |
addict.in / addict.out
1 s, 64 MB
|
|
 x99
|
| C |
decoding.in / decoding.out
1 s, 64 MB
|
|
x104
|
| D |
gas.in / gas.out
1 s, 64 MB
|
|
x42
|
| E |
infinity.in / infinity.out
1 s, 64 MB
|
|
x58
|
| F |
polymorphism.in / polymorphism.out
1 s, 64 MB
|
|
x24
|
| G |
refrain.in / refrain.out
1 s, 64 MB
|
|
x56
|
| I |
superinv.in / superinv.out
1 s, 64 MB
|
|
x16
|
| J |
truth.in / truth.out
1 s, 64 MB
|
|
x130
|
1 The package for this problem was not updated by the problem writer or Codeforces administration after we've upgraded the judging servers. To adjust the time limit constraint, a solution execution time will be multiplied by 2. For example, if your solution works for 400 ms on judging servers, then the value 800 ms will be displayed and used to determine the verdict.
Questions about problems
| Question | Answer |
|---|
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