User contributions for Shihan
10 October 2025
20 July 2025
16 July 2025
- 00:0300:03, 16 July 2025 diff hist −5 m 2025 IMO Problems/Problem 1 No edit summary
13 July 2025
- 12:4112:41, 13 July 2025 diff hist +2,588 Putnam historical results →Team Winners current
- 12:4012:40, 13 July 2025 diff hist +1,581 Putnam historical results →Putnam Fellows
25 February 2025
17 February 2024
- 10:3910:39, 17 February 2024 diff hist −6 m Olympiad Archive No edit summary
10 August 2023
- 09:0909:09, 10 August 2023 diff hist −11 m 2009 IMO Problems/Problem 2 →Diagram
- 09:0909:09, 10 August 2023 diff hist +10 m 2009 IMO Problems/Problem 2 →Diagram
15 July 2023
- 12:5912:59, 15 July 2023 diff hist +9 m 1993 AIME Problems/Problem 12 →Solution 1 current
9 July 2023
- 14:3314:33, 9 July 2023 diff hist −262 m 1984 AIME Problems/Problem 15 →Solution 1
- 13:3913:39, 9 July 2023 diff hist −35 m 1984 AIME Problems/Problem 15 →Solution 2
- 13:2513:25, 9 July 2023 diff hist −709 m 1984 AIME Problems/Problem 15 →Solution 1
- 12:2212:22, 9 July 2023 diff hist −13 m 1984 AIME Problems/Problem 15 →Solution 1
- 12:2112:21, 9 July 2023 diff hist −12 m 1984 AIME Problems/Problem 15 →Solution 1
4 July 2023
- 13:1713:17, 4 July 2023 diff hist +4 m 2022 AIME I Problems/Problem 12 →Linearity of Expectation Solution
- 13:1713:17, 4 July 2023 diff hist 0 m 2022 AIME I Problems/Problem 12 →Solution 3
- 13:1713:17, 4 July 2023 diff hist −1 m 2022 AIME I Problems/Problem 12 →Solution 2 (Rigorous)
19 June 2023
13 March 2023
- 18:5118:51, 13 March 2023 diff hist −48 2023 AIME I Problems →Problem 14
- 18:5018:50, 13 March 2023 diff hist +48 m 2023 AIME I Problems →Problem 14
14 February 2023
25 January 2023
- 19:4219:42, 25 January 2023 diff hist +2,386 m 2012 AIME I Problems/Problem 13 →Solution 5
16 January 2023
- 13:4113:41, 16 January 2023 diff hist 0 m 2022 AIME II Problems/Problem 15 →Solution 1
- 13:0713:07, 16 January 2023 diff hist −2 m 2007 AIME I Problems/Problem 12 →Solution 3
- 13:0613:06, 16 January 2023 diff hist 0 File:I-07-12.png Shihan uploaded a new version of File:I-07-12.png current
- 13:0313:03, 16 January 2023 diff hist +15 N File:I-07-12.png d
- 11:3211:32, 16 January 2023 diff hist +628 m 2007 AIME I Problems/Problem 12 →Solution
10 January 2023
- 01:3901:39, 10 January 2023 diff hist +479 m 2003 USAMO Problems/Problem 4 →Solution 2 current
- 01:3601:36, 10 January 2023 diff hist +512 m 2003 USAMO Problems/Problem 4 →Solution 1
9 January 2023
4 January 2023
- 15:5515:55, 4 January 2023 diff hist +307 m 2020 AIME II Problems/Problem 15 →Solution 1
- 15:5215:52, 4 January 2023 diff hist 0 File:Fanyuchen.png Shihan uploaded a new version of File:Fanyuchen.png current
- 15:4815:48, 4 January 2023 diff hist +15 N File:Fanyuchen.png d
31 December 2022
- 22:4322:43, 31 December 2022 diff hist +1,191 m 2021 AIME I Problems/Problem 13 →Solution 4 (Quick)
- 22:4122:41, 31 December 2022 diff hist +15 N File:I-2021-13.png d current
28 December 2022
- 11:4711:47, 28 December 2022 diff hist +967 m 2020 AIME I Problems/Problem 15 →Solution 1
- 10:4710:47, 28 December 2022 diff hist −3,405 m 2020 AIME I Problems/Problem 15 →Solution 1
- 10:4610:46, 28 December 2022 diff hist 0 File:AIME-I-2020-15a.png Shihan uploaded a new version of File:AIME-I-2020-15a.png current
- 10:4110:41, 28 December 2022 diff hist +15 N File:AIME-I-2020-15a.png d
- 10:1310:13, 28 December 2022 diff hist 0 m 2020 AIME I Problems/Problem 15 →Solution 6
- 10:1110:11, 28 December 2022 diff hist 0 File:AIME-I-2020-15.png Shihan uploaded a new version of File:AIME-I-2020-15.png current
- 10:0910:09, 28 December 2022 diff hist +15 N File:AIME-I-2020-15.png d
26 December 2022
- 23:1223:12, 26 December 2022 diff hist +54 m 2020 AIME II Problems/Problem 15 →Solution 2 (Official MAA)
- 22:0122:01, 26 December 2022 diff hist +69 m 2018 AIME II Problems/Problem 12 →Solution 8 (Simple Geometry)
- 21:5421:54, 26 December 2022 diff hist +15 N File:AIME-II-2018-12.png d current
- 18:2518:25, 26 December 2022 diff hist +92 m 2018 AIME II Problems/Problem 12 →Diagram
- 15:5415:54, 26 December 2022 diff hist −31 2018 AIME I Problems/Problem 14 →Solution 3 (One page solution)
- 15:5115:51, 26 December 2022 diff hist −27 m 2018 AIME I Problems/Problem 15 →Solution 2
- 15:4915:49, 26 December 2022 diff hist +3 m 2018 AIME I Problems/Problem 15 →Problem 15