→ 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.
→ Status filter
→ Contest materials
Contest status
| # | When | Who | Problem | Lang | Verdict | Time | Memory |
|---|---|---|---|---|---|---|---|
| 144629266 | Jan/31/2022 11:34 | SoiMae | F - Here’s a Product Which Will Make You Tensor | C++14 (GCC 6-32) | Accepted | 702 ms | 2600 KB |
| 144628599 | Jan/31/2022 11:24 | SoiMae | F - Here’s a Product Which Will Make You Tensor | C++14 (GCC 6-32) | Accepted | 717 ms | 2600 KB |
| 144627275 | Jan/31/2022 11:05 | SoiMae | A - Arithmetically Challenged | C++14 (GCC 6-32) | Accepted | 0 ms | 400 KB |
| 144624117 | Jan/31/2022 10:20 | SoiMae | H - Windows | C++14 (GCC 6-32) | Accepted | 15 ms | 0 KB |
| 144623999 | Jan/31/2022 10:19 | SoiMae | E - The Flood | C++14 (GCC 6-32) | Accepted | 31 ms | 800 KB |
| 144623946 | Jan/31/2022 10:18 | SoiMae | A - Arithmetically Challenged | C++14 (GCC 6-32) | Wrong answer on test 2 | 15 ms | 400 KB |
| 144623501 | Jan/31/2022 10:11 | SoiMae | A - Arithmetically Challenged | C++14 (GCC 6-32) | Wrong answer on test 2 | 15 ms | 400 KB |
| 144622545 | Jan/31/2022 09:59 | SoiMae | E - The Flood | C++14 (GCC 6-32) | Accepted | 46 ms | 500 KB |
| 144621336 | Jan/31/2022 09:42 | SoiMae | H - Windows | C++14 (GCC 6-32) | Accepted | 0 ms | 0 KB |
| 144619985 | Jan/31/2022 09:24 | SoiMae | D - Flipper | C++14 (GCC 6-32) | Accepted | 15 ms | 0 KB |
| 129502614 | Sep/21/2021 17:09 | vjudge2 | A - Arithmetically Challenged | C++14 (GCC 6-32) | Accepted | 30 ms | 3800 KB |
| 129502561 | Sep/21/2021 17:09 | vjudge1 | A - Arithmetically Challenged | C++14 (GCC 6-32) | Accepted | 31 ms | 3800 KB |
| 89338732 | Aug/08/2020 16:38 | Charles_chu | A - Arithmetically Challenged | C++17 (GCC 7-32) | Accepted | 30 ms | 3800 KB |
| 89338470 | Aug/08/2020 16:35 | Charles_chu | A - Arithmetically Challenged | C++17 (GCC 7-32) | Wrong answer on test 1 | 30 ms | 3800 KB |
| 89336934 | Aug/08/2020 16:13 | Charles_chu | A - Arithmetically Challenged | C++17 (GCC 7-32) | Compilation error | 0 ms | 0 KB |
| 89336867 | Aug/08/2020 16:12 | alex.liu | A - Arithmetically Challenged | GNU C++11 | Accepted | 30 ms | 3800 KB |
| 89336436 | Aug/08/2020 16:06 | Charles_chu | A - Arithmetically Challenged | GNU C++11 | Compilation error | 0 ms | 0 KB |
| 89335503 | Aug/08/2020 15:52 | practise_makes_perfect | A - Arithmetically Challenged | GNU C++11 | Accepted | 31 ms | 3800 KB |
| 89335331 | Aug/08/2020 15:49 | practise_makes_perfect | A - Arithmetically Challenged | GNU C++11 | Wrong answer on test 1 | 15 ms | 3800 KB |
| 89335301 | Aug/08/2020 15:48 | practise_makes_perfect | A - Arithmetically Challenged | MS C++ 2017 | Compilation error | 0 ms | 0 KB |
| 89335209 | Aug/08/2020 15:47 | practise_makes_perfect | A - Arithmetically Challenged | GNU C11 | Compilation error | 0 ms | 0 KB |
| 89326699 | Aug/08/2020 13:30 | hyman00 | A - Arithmetically Challenged | GNU C++11 | Accepted | 31 ms | 3900 KB |
| 89325457 | Aug/08/2020 13:11 | hyman00 | A - Arithmetically Challenged | GNU C++11 | Accepted | 31 ms | 3800 KB |
| 89322403 | Aug/08/2020 12:22 | Tony1020 | A - Arithmetically Challenged | C++17 (GCC 7-32) | Compilation error | 0 ms | 0 KB |
| 89322320 | Aug/08/2020 12:20 | Tony1020 | A - Arithmetically Challenged | C++17 (GCC 7-32) | Compilation error | 0 ms | 0 KB |
| 89321939 | Aug/08/2020 12:14 | Tony1020 | A - Arithmetically Challenged | C++17 (GCC 7-32) | Wrong answer on test 1 | 15 ms | 3800 KB |
| 83876517 | Jun/15/2020 23:36 | qiaoz | H - Windows | Java 8 | Accepted | 186 ms | 0 KB |
| 83875850 | Jun/15/2020 23:21 | qiaoz | G - Trip the Lights Fantastic | Java 8 | Accepted | 405 ms | 0 KB |
| 83865545 | Jun/15/2020 20:28 | qiaoz | F - Here’s a Product Which Will Make You Tensor | Java 8 | Accepted | 1169 ms | 0 KB |
| 83859843 | Jun/15/2020 19:16 | qiaoz | E - The Flood | Java 8 | Accepted | 499 ms | 0 KB |
| 83855973 | Jun/15/2020 18:32 | qiaoz | D - Flipper | Java 8 | Accepted | 202 ms | 0 KB |
| 83853188 | Jun/15/2020 18:00 | qiaoz | C - Decompressing in a GIF | Java 8 | Accepted | 217 ms | 0 KB |
| 83853047 | Jun/15/2020 17:59 | qiaoz | C - Decompressing in a GIF | Java 8 | Runtime error on test 1 | 156 ms | 0 KB |
| 83849080 | Jun/15/2020 17:16 | qiaoz | C - Decompressing in a GIF | Java 8 | Wrong answer on test 1 | 139 ms | 0 KB |
| 83847094 | Jun/15/2020 16:53 | qiaoz | B - Cover Up | Java 8 | Accepted | 249 ms | 0 KB |
| 83840789 | Jun/15/2020 15:31 | qiaoz | B - Cover Up | Java 8 | Wrong answer on test 2 | 171 ms | 0 KB |
| 83787964 | Jun/15/2020 04:44 | qiaoz | A - Arithmetically Challenged | Java 8 | Accepted | 124 ms | 0 KB |
| 65131672 | Nov/16/2019 06:45 | vjudge5 | A - Arithmetically Challenged | GNU C++11 | Accepted | 30 ms | 0 KB |
| 64527313 | Nov/08/2019 17:12 | vjudge4 | A - Arithmetically Challenged | MS C++ | Accepted | 31 ms | 400 KB |
| 64307535 | Nov/05/2019 14:49 | vjudge4 | A - Arithmetically Challenged | MS C++ | Accepted | 31 ms | 400 KB |
| 64304452 | Nov/05/2019 14:05 | vjudge2 | A - Arithmetically Challenged | MS C++ | Compilation error | 0 ms | 0 KB |
| 64024663 | Nov/01/2019 18:50 | vjudge5 | A - Arithmetically Challenged | MS C++ | Compilation error | 0 ms | 0 KB |
| 62243059 | Oct/10/2019 05:51 | vjudge3 | D - Flipper | GNU C++11 | Accepted | 0 ms | 100 KB |
| 62242829 | Oct/10/2019 05:43 | vjudge1 | A - Arithmetically Challenged | GNU C++11 | Accepted | 15 ms | 0 KB |
| 62240717 | Oct/10/2019 04:30 | vjudge3 | A - Arithmetically Challenged | GNU C++11 | Accepted | 30 ms | 0 KB |
| 62240716 | Oct/10/2019 04:30 | vjudge4 | A - Arithmetically Challenged | GNU C++11 | Accepted | 30 ms | 0 KB |
| 60746494 | Sep/18/2019 05:08 | cnh355 | B - Cover Up | Java 8 | Accepted | 187 ms | 0 KB |
| 58197785 | Aug/03/2019 05:02 | vjudge3 | A - Arithmetically Challenged | GNU C++11 | Accepted | 15 ms | 0 KB |
| 44490728 | Oct/18/2018 17:22 | vietnakid | E - The Flood | C++17 (GCC 7-32) | Accepted | 77 ms | 600 KB |
| 44489545 | Oct/18/2018 16:56 | vietnakid | E - The Flood | C++17 (GCC 7-32) | Wrong answer on test 2 | 46 ms | 300 KB |
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