Daniel Zhou's Profile

Hi! I'm Daniel Zhou from Michigan. I post on AOPS solutions to various problems including IMO, USA(J)MO, AIME, AMC, ARML, HMMT, PUMac, etc.

Here are some of the contributions I've made so far:

1. 2014 IMO Problem 1
2. 2013 IMO Problem 4
3. 2012 IMO Shortlist Problem 1
4. 2010 IMO Shortlist - Geometry Problem 1
5. 2009 IMO Problem 4
6. 2009 IMO Problem 2
7. 2006 IMO Problem 1
8. 2001 IMO Problem 1
9. 2001 IMO Shortlist Problem 1
10. 1996 IMO Shortlist Problem 2
11. 1995 IMO Problem 1

1. 2020 USOMO P1
2. 2005 USAMO P5
3. 2005 USAMO P1
4. 1997 USAMO P1
5. 1997 USAMO P2
6. 1996 USAMO P2

1. 2024 USAJMO P1
2. 2019 USAJMO P1
3. 2015 USAJMO P6 / USAMO P4
4. 2012 USAJMO P2 / USAMO P1
5. 2011 USAJMO P5

1. 2024 AIME II P15
2. 2024 AIME II P13
3. 2024 AIME I P13
4. 2024 AIME II P10
5. 2024 AIME II P11
6. 2023 AIME I P1
7. 2023 AIME I P12 (Solution 4)
8. 2023 AIME I P8 (Solution 3)
9. 2023 AIME I P5 (Solution 4)
10. 2023 AIME II P9 (Solution 2)
11. 2021 AIME II P14 (Solution 2)
12. 2021 AIME II P14
13. 2021 AIME II P9
14. 2020 AOIME II P9
15. 2020 AIME I P15
16. 2020 AIME I P12
17. 2020 AOIME II P9
18. 2019 AIME II P11
19. 2019 AIME II P6
20. 2018 AIME I P15
21. 2018 AIME II P13
22. 2016 AIME I P13
23. 2012 AIME I P14
24. 2012 AIME II P14
25. 2012 AIME II P15

1. 2024 AMC 12A P23
2. 2023 AMC 10B P14
3. 2022 AMC 10A P24
4. 2022 AMC 12B P24
5. 2018 AMC 12A P24
6. 2015 AMC 12A P23 / AMC 10A P25

1. 2016 PUMaC N7 (A) | N8 (B)
2. 2016 PUMaC G5 (A) | G6 (B)
3. 2016 PUMaC G7 (A) | G8 (B)
4. 2018 Canadian Mathematical Olympiad P3
5. 2019 EGMO P1
6. 2015 All Russian Olympiad 11.5
7. 2014 Vietnam Mathematical Olympiad P1
8. 2014 HMMT November General Round P10
9. 2013 Fall OMO P24
10. 2023 ARML IR-P6
11. [https://artofproblemsolving.com/community/c3405718t121873f3405718h3091514_avbvc_ultimate_standoff 2023 ANMC P17(AOPS

Nurds Math Contest)]

1. 2023 ANMC P23 (AOPS Nurds Math Contest)
2. 2016 India Postal Set 3 P2
3. 2023 Michigan Math Meet