Final Results: USACO 2024 January Contest, Platinum
Key:
* = Correct
x = Wrong Answer (including possibly empty or missing output file)
t = Timeout
c = Didn't Compile
! = Run-time error or exceeded memory limits
Pre-College Participants (Full List):
Country |
Year |
Name |
Score |
| Problem 1 | | Problem 2 | | Problem 3 |
CHN | 2026 | Yuxuan Lei | 1000 | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
USA | 2025 | Rain Jiang | 1000 | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
CHN | 2026 | Jiahan Wu | 1000 | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
CHN | 2026 | Xulei Chen | 1000 | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
CHN | 2026 | Haikun Zhao | 1000 | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
CAN | 2024 | Tianjun Zheng | 1000 | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
CHN | 2025 | Zhezhang Chen | 1000 | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
ISR | 2024 | Elazar Koren | 867 | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | t | t | t | t | t | x | t | t | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
USA | 2025 | Bing-Dong Liu | 800 | | * | * | * | * | * | * | * | * | * | * | * | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
ROU | 2024 | Boaca Andrei | 800 | | * | * | * | * | * | * | * | * | * | * | * | x | x | x | x | x | x | x | x | x | x | x | x | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
USA | 2025 | Agastya Goel | 800 | | * | * | * | * | * | * | * | * | * | * | * | ! | ! | ! | ! | ! | ! | ! | ! | ! | t | ! | ! | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
Pre-College Participants (USA only):
Country |
Year |
Name |
Score |
| Problem 1 | | Problem 2 | | Problem 3 |
USA | 2025 | Rain Jiang | 1000 | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
USA | 2025 | Bing-Dong Liu | 800 | | * | * | * | * | * | * | * | * | * | * | * | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
USA | 2025 | Agastya Goel | 800 | | * | * | * | * | * | * | * | * | * | * | * | ! | ! | ! | ! | ! | ! | ! | ! | ! | t | ! | ! | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
USA | 2025 | Rohin Garg | 767 | | * | * | * | * | * | * | * | * | t | t | * | ! | x | ! | ! | x | x | ! | x | x | x | x | ! | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
USA | 2025 | Ryan Bai | 767 | | * | * | x | x | x | * | * | * | * | * | * | x | x | x | x | ! | t | t | ! | t | x | x | ! | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
USA | 2025 | Brian Xue | 733 | | * | * | x | x | x | * | * | * | x | * | x | x | x | x | x | x | x | x | x | x | t | t | x | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
USA | 2025 | Sicheng Zhou | 733 | | * | * | * | * | * | * | * | t | t | t | t | t | t | t | t | t | t | t | t | t | t | t | t | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
USA | 2026 | Rithwik Gupta | 733 | | * | * | * | * | * | * | * | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | t | ! | ! | ! | ! | ! | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
USA | 2025 | Eric Hsu | 667 | | | | | | | | | | | | | | | | | | | | | | | | | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
USA | 2025 | Dixian Chen | 600 | | * | * | * | * | * | * | * | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | t | t | t | t | t | t | t | t | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
USA | 2024 | Larry Xing | 600 | | * | * | * | * | * | * | * | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | t | t | t | t | t | t | t | t | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
USA | 2027 | Nelson Huang | 600 | | * | * | * | * | * | * | * | t | t | t | t | t | t | t | t | t | t | t | t | t | t | t | t | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | ! | ! | ! | ! | ! | ! | ! | ! | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
Observers:
Country |
Name |
Score |
| Problem 1 | | Problem 2 | | Problem 3 |
USA | Andrew He | 1000 | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
IDN | Rama Pangestu | 800 | | * | * | * | * | * | * | * | * | * | * | * | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
UKR | Vladislav Denisyuk | 733 | | * | * | * | * | * | * | * | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | t | ! | ! | ! | ! | ! | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
JPN | Natsugiri Natsugiri | 733 | | * | * | * | * | * | * | * | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
JPN | Soyo Nagasaki | 733 | | * | * | * | * | * | * | * | t | t | t | t | t | t | t | t | t | t | t | t | t | t | t | t | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
KOR | Jaehyun Koo | 700 | | * | x | x | x | x | * | * | x | x | x | x | x | x | x | x | x | x | x | x | t | t | t | t | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
CHN | Jiahe Yu | 667 | | x | * | * | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
IRN | Ali Safari | 667 | | | | | | | | | | | | | | | | | | | | | | | | | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
BRN | Rice G | 667 | | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | ! | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
USA | Jay Leeds | 667 | | x | x | x | x | x | x | x | ! | x | ! | ! | ! | ! | ! | x | ! | ! | x | ! | ! | ! | ! | x | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
CHN | Yeqian Zang | 667 | | | | | | | | | | | | | | | | | | | | | | | | | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
CHN | JiaWen Liang | 667 | | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | x | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |
CHN | Yikai Chen | 667 | | c | c | c | c | c | c | c | c | c | c | c | c | c | c | c | c | c | c | c | c | c | c | c | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | | | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | * | |