→ About Contest
The USACO.Guide Informatics Tournament is a programming contest for precollege students hosted by the USACO.Guide and Competitive Programming Initiative.
→ 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 |
|---|---|---|---|---|---|---|---|
| 387945912 | Aug/22/2026 04:37 | gnadihc26 | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Accepted | 5328 ms | 11900 KB |
| 387945553 | Aug/22/2026 04:26 | gnadihc26 | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Wrong answer on test 1 | 0 ms | 21200 KB |
| 385883172 | Aug/06/2026 15:33 | sexyswag | F - Farmer John's Cities | C++23 (GCC 14-64, msys2) | Accepted | 78 ms | 1700 KB |
| 385881107 | Aug/06/2026 15:16 | sexyswag | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Accepted | 5125 ms | 522000 KB |
| 385881079 | Aug/06/2026 15:16 | sexyswag | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Memory limit exceeded on test 30 | 578 ms | 1048600 KB |
| 385879418 | Aug/06/2026 15:04 | sexyswag | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Wrong answer on test 5 | 31 ms | 0 KB |
| 385879268 | Aug/06/2026 15:03 | sexyswag | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Wrong answer on test 5 | 31 ms | 0 KB |
| 385877392 | Aug/06/2026 14:48 | sexyswag | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Wrong answer on test 5 | 31 ms | 0 KB |
| 385876799 | Aug/06/2026 14:42 | sexyswag | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Runtime error on test 5 | 31 ms | 0 KB |
| 385876590 | Aug/06/2026 14:41 | sexyswag | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Runtime error on test 5 | 31 ms | 0 KB |
| 385876075 | Aug/06/2026 14:36 | sexyswag | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Time limit exceeded on test 30 | 8000 ms | 11000 KB |
| 385875797 | Aug/06/2026 14:34 | sexyswag | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Runtime error on test 5 | 31 ms | 0 KB |
| 384896515 | Jul/30/2026 18:30 | SU1: The Throngler: NikZapp, TakingOver# | F - Farmer John's Cities | C++23 (GCC 14-64, msys2) | Accepted | 93 ms | 4800 KB |
| 384894814 | Jul/30/2026 18:15 | SU1: The Throngler: NikZapp, TakingOver# | D - Producing Digits | PyPy 3-64 | Accepted | 171 ms | 7900 KB |
| 384894539 | Jul/30/2026 18:12 | SU1: The Throngler: NikZapp, TakingOver# | D - Producing Digits | PyPy 3-64 | Wrong answer on test 3 | 46 ms | 2200 KB |
| 384893494 | Jul/30/2026 18:01 | SU1: The Throngler: NikZapp, TakingOver# | B - Two Way Homework | PyPy 3-64 | Accepted | 93 ms | 18400 KB |
| 384893475 | Jul/30/2026 18:01 | SU1: The Throngler: NikZapp, TakingOver# | B - Two Way Homework | C++23 (GCC 14-64, msys2) | Compilation error | 0 ms | 0 KB |
| 384891686 | Jul/30/2026 17:44 | SU1: The Throngler: NikZapp, TakingOver# | C - Balanced Difference | C++23 (GCC 14-64, msys2) | Accepted | 109 ms | 2600 KB |
| 384886217 | Jul/30/2026 16:57 | SU1: The Throngler: NikZapp, TakingOver# | C - Balanced Difference | C++23 (GCC 14-64, msys2) | Wrong answer on test 3 | 109 ms | 2600 KB |
| 384886077 | Jul/30/2026 16:56 | SU1: The Throngler: NikZapp, TakingOver# | C - Balanced Difference | C++23 (GCC 14-64, msys2) | Compilation error | 0 ms | 0 KB |
| 384885997 | Jul/30/2026 16:56 | SU1: The Throngler: NikZapp, TakingOver# | C - Balanced Difference | C++23 (GCC 14-64, msys2) | Runtime error on test 2 | 31 ms | 0 KB |
| 384885357 | Jul/30/2026 16:51 | SU1: The Throngler: NikZapp, TakingOver# | C - Balanced Difference | C++23 (GCC 14-64, msys2) | Wrong answer on test 3 | 31 ms | 0 KB |
| 384882806 | Jul/30/2026 16:30 | SU1: The Throngler: NikZapp, TakingOver# | A - TriNum Array | C++23 (GCC 14-64, msys2) | Accepted | 46 ms | 0 KB |
| 383728033 | Jul/21/2026 18:40 | SMTYON | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Accepted | 7765 ms | 18800 KB |
| 383727849 | Jul/21/2026 18:38 | SMTYON | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Wrong answer on test 15 | 46 ms | 6300 KB |
| 383727682 | Jul/21/2026 18:37 | SMTYON | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Wrong answer on test 15 | 46 ms | 6300 KB |
| 383726849 | Jul/21/2026 18:29 | SMTYON | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Memory limit exceeded on test 30 | 3703 ms | 1048600 KB |
| 383189390 | Jul/17/2026 19:59 | Anda130249 | F - Farmer John's Cities | C++23 (GCC 14-64, msys2) | Accepted | 62 ms | 1000 KB |
| 383187696 | Jul/17/2026 19:47 | Anda130249 | F - Farmer John's Cities | C++23 (GCC 14-64, msys2) | Wrong answer on test 5 | 31 ms | 100 KB |
| 383187476 | Jul/17/2026 19:45 | Anda130249 | F - Farmer John's Cities | C++23 (GCC 14-64, msys2) | Wrong answer on test 4 | 31 ms | 0 KB |
| 382945441 | Jul/16/2026 15:54 | Anda130249 | D - Producing Digits | C++23 (GCC 14-64, msys2) | Accepted | 62 ms | 0 KB |
| 382837487 | Jul/15/2026 21:23 | Anda130249 | D - Producing Digits | C++23 (GCC 14-64, msys2) | Wrong answer on test 3 | 31 ms | 0 KB |
| 381431747 | Jul/06/2026 14:07 | Anshul_swa | A - TriNum Array | C++23 (GCC 14-64, msys2) | Accepted | 62 ms | 0 KB |
| 381055066 | Jul/02/2026 20:19 | lastdancee | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Accepted | 2203 ms | 442500 KB |
| 381054503 | Jul/02/2026 20:14 | lastdancee | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Accepted | 2281 ms | 599200 KB |
| 381054436 | Jul/02/2026 20:13 | lastdancee | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Accepted | 2328 ms | 677400 KB |
| 381054077 | Jul/02/2026 20:10 | lastdancee | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Accepted | 2296 ms | 520900 KB |
| 381048822 | Jul/02/2026 19:22 | phanminhanh2162022 | L - Modulo Queries | C++20 (GCC 13-64) | Accepted | 1375 ms | 595100 KB |
| 379239084 | Jun/17/2026 15:12 | _Body | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Time limit exceeded on test 50 | 8000 ms | 31400 KB |
| 379238947 | Jun/17/2026 15:10 | _Body | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Accepted | 7968 ms | 31500 KB |
| 379238877 | Jun/17/2026 15:10 | _Body | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Wrong answer on test 30 | 3937 ms | 17000 KB |
| 379185018 | Jun/17/2026 03:46 | _Boody | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Time limit exceeded on test 30 | 8000 ms | 9000 KB |
| 379184758 | Jun/17/2026 03:35 | _Boody | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Accepted | 6843 ms | 17500 KB |
| 379184732 | Jun/17/2026 03:34 | _Boody | L - Modulo Queries | C++17 (GCC 7-32) | Time limit exceeded on test 50 | 8000 ms | 14100 KB |
| 379184440 | Jun/17/2026 03:24 | _Boody | L - Modulo Queries | C++20 (GCC 13-64) | Time limit exceeded on test 30 | 8000 ms | 8900 KB |
| 378978208 | Jun/15/2026 15:22 | mogamal17 | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Accepted | 718 ms | 27000 KB |
| 378977787 | Jun/15/2026 15:16 | mogamal17 | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Wrong answer on test 1 | 15 ms | 4700 KB |
| 378977516 | Jun/15/2026 15:13 | mogamal17 | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Accepted | 765 ms | 27000 KB |
| 378977112 | Jun/15/2026 15:09 | mogamal17 | L - Modulo Queries | C++23 (GCC 14-64, msys2) | Memory limit exceeded on test 30 | 2140 ms | 1048600 KB |
| 378552037 | Jun/13/2026 22:19 | _Body | L - Modulo Queries | C++17 (GCC 7-32) | Runtime error on test 30 | 1437 ms | 591600 KB |
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