→ About Contest
The 2004 ACM East Central North America Regional Programming Contest (ACM ECNA RPC) was held on Saturday November 6, 2004. We had 131 teams drawn from 72 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 |
|---|---|---|---|---|---|---|---|
| 354390899 | Dec/21/2025 08:48 | igatsi | A - Alphacode | C++17 (GCC 7-32) | Accepted | 62 ms | 100 KB |
| 354390487 | Dec/21/2025 08:42 | igatsi | A - Alphacode | C++17 (GCC 7-32) | Wrong answer on test 2 | 31 ms | 0 KB |
| 354388739 | Dec/21/2025 08:18 | igatsi | A - Alphacode | C++17 (GCC 7-32) | Wrong answer on test 2 | 15 ms | 0 KB |
| 354388680 | Dec/21/2025 08:17 | igatsi | A - Alphacode | C++17 (GCC 7-32) | Wrong answer on test 2 | 31 ms | 100 KB |
| 354029725 | Dec/19/2025 02:28 | igatsi | G - To and Fro | C++17 (GCC 7-32) | Accepted | 31 ms | 0 KB |
| 354029579 | Dec/19/2025 02:22 | igatsi | G - To and Fro | C++17 (GCC 7-32) | Wrong answer on test 1 | 0 ms | 0 KB |
| 352016143 | Dec/05/2025 17:23 | rlc202204 | D - I Conduit! | C++17 (GCC 7-32) | Accepted | 640 ms | 400 KB |
| 341517560 | Oct/02/2025 17:50 | G_R_O_D_N_O_6: rekname, gydgem, sqhxo# | D - I Conduit! | C++23 (GCC 14-64, msys2) | Accepted | 437 ms | 0 KB |
| 341517457 | Oct/02/2025 17:49 | G_R_O_D_N_O_6: rekname, gydgem, sqhxo# | D - I Conduit! | C++23 (GCC 14-64, msys2) | Compilation error | 0 ms | 0 KB |
| 341515085 | Oct/02/2025 17:34 | G_R_O_D_N_O_6: rekname, gydgem, sqhxo# | D - I Conduit! | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 421 ms | 0 KB |
| 341511962 | Oct/02/2025 17:13 | G_R_O_D_N_O_6: rekname, gydgem, sqhxo# | D - I Conduit! | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 437 ms | 100 KB |
| 341510706 | Oct/02/2025 17:06 | G_R_O_D_N_O_6: rekname, gydgem, sqhxo# | D - I Conduit! | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 421 ms | 0 KB |
| 341510015 | Oct/02/2025 17:01 | G_R_O_D_N_O_6: rekname, gydgem, sqhxo# | D - I Conduit! | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 421 ms | 0 KB |
| 341509659 | Oct/02/2025 16:59 | G_R_O_D_N_O_6: rekname, gydgem, sqhxo# | D - I Conduit! | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 390 ms | 0 KB |
| 341508513 | Oct/02/2025 16:52 | G_R_O_D_N_O_6: rekname, gydgem, sqhxo# | D - I Conduit! | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 375 ms | 0 KB |
| 341507904 | Oct/02/2025 16:49 | G_R_O_D_N_O_6: rekname, gydgem, sqhxo# | D - I Conduit! | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 390 ms | 0 KB |
| 341507413 | Oct/02/2025 16:46 | G_R_O_D_N_O_6: rekname, gydgem, sqhxo# | D - I Conduit! | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 374 ms | 0 KB |
| 341502624 | Oct/02/2025 16:13 | G_R_O_D_N_O_6: rekname, gydgem, sqhxo# | D - I Conduit! | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 375 ms | 0 KB |
| 341502429 | Oct/02/2025 16:11 | G_R_O_D_N_O_6: rekname, gydgem, sqhxo# | D - I Conduit! | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 343 ms | 0 KB |
| 341502362 | Oct/02/2025 16:10 | MisterGir | F - Team Rankings | C++20 (GCC 13-64) | Accepted | 46 ms | 0 KB |
| 341501674 | Oct/02/2025 16:04 | MisterGir | G - To and Fro | C++20 (GCC 13-64) | Accepted | 46 ms | 0 KB |
| 341501430 | Oct/02/2025 16:01 | MisterGir | A - Alphacode | C++20 (GCC 13-64) | Accepted | 46 ms | 0 KB |
| 341499720 | Oct/02/2025 15:45 | G_R_O_D_N_O_6: rekname, gydgem, sqhxo# | F - Team Rankings | C++23 (GCC 14-64, msys2) | Accepted | 31 ms | 0 KB |
| 341497434 | Oct/02/2025 15:20 | G_R_O_D_N_O_6: rekname, gydgem, sqhxo# | G - To and Fro | C++23 (GCC 14-64, msys2) | Accepted | 30 ms | 0 KB |
| 341497136 | Oct/02/2025 15:18 | G_R_O_D_N_O_6: rekname, gydgem, sqhxo# | G - To and Fro | C++23 (GCC 14-64, msys2) | Wrong answer on test 1 | 46 ms | 0 KB |
| 341496432 | Oct/02/2025 15:10 | G_R_O_D_N_O_6: rekname, gydgem, sqhxo# | A - Alphacode | C++23 (GCC 14-64, msys2) | Accepted | 30 ms | 0 KB |
| 341496099 | Oct/02/2025 15:06 | G_R_O_D_N_O_6: rekname, gydgem, sqhxo# | A - Alphacode | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 46 ms | 0 KB |
| 341495720 | Oct/02/2025 15:02 | G_R_O_D_N_O_6: rekname, gydgem, sqhxo# | A - Alphacode | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 46 ms | 0 KB |
| 341495484 | Oct/02/2025 14:59 | G_R_O_D_N_O_6: rekname, gydgem, sqhxo# | A - Alphacode | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 46 ms | 0 KB |
| 332211337 | Aug/03/2025 13:59 | EL_R3AD: DrStonee, Becha123, Bilel# | D - I Conduit! | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 1312 ms | 0 KB |
| 332209873 | Aug/03/2025 13:45 | EL_R3AD: DrStonee, Becha123, Bilel# | D - I Conduit! | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 1249 ms | 0 KB |
| 332203383 | Aug/03/2025 12:44 | EL_R3AD: DrStonee, Becha123, Bilel# | D - I Conduit! | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 827 ms | 0 KB |
| 332200253 | Aug/03/2025 12:16 | EL_R3AD: DrStonee, Becha123, Bilel# | D - I Conduit! | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 999 ms | 100 KB |
| 332190369 | Aug/03/2025 10:48 | EL_R3AD: DrStonee, Becha123, Bilel# | F - Team Rankings | C++17 (GCC 7-32) | Accepted | 62 ms | 0 KB |
| 332188484 | Aug/03/2025 10:31 | EL_R3AD: DrStonee, Becha123, Bilel# | F - Team Rankings | C++17 (GCC 7-32) | Wrong answer on test 2 | 31 ms | 100 KB |
| 332188117 | Aug/03/2025 10:28 | EL_R3AD: DrStonee, Becha123, Bilel# | F - Team Rankings | C++17 (GCC 7-32) | Wrong answer on test 1 | 62 ms | 0 KB |
| 332186639 | Aug/03/2025 10:14 | EL_R3AD: DrStonee, Becha123, Bilel# | A - Alphacode | C++23 (GCC 14-64, msys2) | Accepted | 46 ms | 0 KB |
| 332185083 | Aug/03/2025 10:00 | EL_R3AD: DrStonee, Becha123, Bilel# | A - Alphacode | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 31 ms | 0 KB |
| 332184292 | Aug/03/2025 09:52 | EL_R3AD: DrStonee, Becha123, Bilel# | A - Alphacode | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 62 ms | 0 KB |
| 332183962 | Aug/03/2025 09:51 | EL_R3AD: DrStonee, Becha123, Bilel# | G - To and Fro | C++23 (GCC 14-64, msys2) | Accepted | 46 ms | 100 KB |
| 327457032 | Jul/05/2025 05:34 | LoboLobo | D - I Conduit! | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 468 ms | 400 KB |
| 326787935 | Jul/01/2025 14:19 | vjudge4 | B - Anti-prime Sequences | C++17 (GCC 7-32) | Accepted | 436 ms | 100 KB |
| 326787854 | Jul/01/2025 14:18 | vjudge.1 | B - Anti-prime Sequences | C++17 (GCC 7-32) | Wrong answer on test 1 | 46 ms | 0 KB |
| 326787705 | Jul/01/2025 14:17 | vjudge.5 | B - Anti-prime Sequences | C++17 (GCC 7-32) | Wrong answer on test 1 | 31 ms | 100 KB |
| 326656388 | Jun/30/2025 15:45 | vjudge2 | B - Anti-prime Sequences | C++20 (GCC 13-64) | Accepted | 296 ms | 1200 KB |
| 326586333 | Jun/30/2025 03:43 | 9_5_2001 | A - Alphacode | C++17 (GCC 7-32) | Accepted | 46 ms | 700 KB |
| 326586096 | Jun/30/2025 03:36 | 9_5_2001 | A - Alphacode | C++17 (GCC 7-32) | Runtime error on test 2 | 46 ms | 0 KB |
| 323153389 | Jun/06/2025 19:03 | vjudge.5 | B - Anti-prime Sequences | C++17 (GCC 7-32) | Wrong answer on test 1 | 31 ms | 800 KB |
| 323030841 | Jun/05/2025 19:45 | Lolicodedao | G - To and Fro | C++20 (GCC 13-64) | Accepted | 46 ms | 100 KB |
| 323021952 | Jun/05/2025 18:42 | Lolicodedao | D - I Conduit! | C++20 (GCC 13-64) | Accepted | 561 ms | 100 KB |
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