→ About Contest
The 2009 ACM-ICPC East Central North America Regional Programming Contest (ACM-ICPC ECNA RPC) was held on Saturday October 31, 2009. We had 115 teams drawn from 60 colleges and universities throughout western Pennsylvania, Ohio, Michigan, eastern Ontario, and Indiana (excluding the Greater Chicago Metropolitan Area).
→ 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 |
standard input/output
1 s, 256 MB
|
|
 x105
|
| B |
standard input/output
1 s, 256 MB
|
|
x18
|
| C |
standard input/output
1 s, 256 MB
|
|
x38
|
| D |
standard input/output
1 s, 256 MB
|
|
x111
|
| E |
standard input/output
1 s, 256 MB
|
|
x70
|
| F |
standard input/output
4 s, 256 MB
|
|
x37
|
| G |
standard input/output
1 s, 256 MB
|
|
x48
|
| H |
standard input/output
1 s, 256 MB
|
|
x135
|
Questions about problems
| Question | Answer |
|---|
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