3 March 2021

• curprev 20:1620:16, 3 March 2021 Cosmicgenius talk contribs 7,914 bytes −17 →Problem 13
• curprev 20:1120:11, 3 March 2021 Cosmicgenius talk contribs m 7,931 bytes +7 →Problem 3

7 August 2020

• curprev 00:3300:33, 7 August 2020 Pleaseletmewin talk contribs m 7,924 bytes +12 →Problem 13
• curprev 00:3200:32, 7 August 2020 Pleaseletmewin talk contribs m 7,912 bytes 0 →Problem 13
• curprev 00:3200:32, 7 August 2020 Pleaseletmewin talk contribs m 7,912 bytes −11 →Problem 13

9 July 2020

• curprev 09:3209:32, 9 July 2020 Yrnsmurf talk contribs m 7,923 bytes +4 No edit summary

26 June 2020

• curprev 10:4310:43, 26 June 2020 Lrjr24 talk contribs 7,919 bytes +82 Undo revision 126279 by Ruohongzhou (talk) Tag: Undo

23 June 2020

• curprev 11:4211:42, 23 June 2020 Ruohongzhou talk contribs 7,837 bytes −82 →Problem 1
• curprev 11:4111:41, 23 June 2020 Ruohongzhou talk contribs 7,919 bytes −4 →Problem 1

13 March 2020

• curprev 11:2011:20, 13 March 2020 P groudon talk contribs 7,923 bytes +18 →Problem 15

21 February 2019

• curprev 16:0516:05, 21 February 2019 Recophys talk contribs 7,905 bytes 0 →Problem 5

30 December 2018

• curprev 04:5004:50, 30 December 2018 P groudon talk contribs 7,905 bytes 0 No edit summary

14 June 2018

• curprev 00:5100:51, 14 June 2018 Shreyassama talk contribs m 7,905 bytes 0 →Problem 5

7 March 2018

• curprev 18:2818:28, 7 March 2018 Dr4gon39 talk contribs 7,905 bytes +6 →Problem 3

14 March 2017

• curprev 23:4523:45, 14 March 2017 Vaf8734 talk contribs m 7,899 bytes 0 →Problem 8
• curprev 23:4523:45, 14 March 2017 Vaf8734 talk contribs m 7,899 bytes +18 →Problem 8

7 September 2016

• curprev 10:5610:56, 7 September 2016 Omerto1313 talk contribs m 7,881 bytes +1 →Problem 7

17 August 2016

• curprev 13:2513:25, 17 August 2016 Johnstucky talk contribs 7,880 bytes 0 →Problem 5

20 July 2016

• curprev 21:2521:25, 20 July 2016 Recophys talk contribs 7,880 bytes 0 →Problem 15

16 May 2016

• curprev 21:2621:26, 16 May 2016 Mathgeek2006 talk contribs m 7,880 bytes +74 No edit summary

3 April 2016

• curprev 12:3512:35, 3 April 2016 Meloby talk contribs m 7,806 bytes +1 →Problem 5

20 March 2016

• curprev 12:2412:24, 20 March 2016 A1267ab talk contribs m 7,805 bytes 0 →Problem 15: fixed index on summation

18 March 2016

• curprev 12:3912:39, 18 March 2016 Ethanproz talk contribs m 7,805 bytes +3 →Problem 3

17 March 2016

• curprev 22:1422:14, 17 March 2016 Fclvbfm934 talk contribs 7,802 bytes +2 No edit summary
• curprev 22:1422:14, 17 March 2016 Fclvbfm934 talk contribs 7,800 bytes +2 No edit summary
• curprev 21:4621:46, 17 March 2016 Tmathman talk contribs 7,798 bytes 0 →Problem 12
• curprev 21:4421:44, 17 March 2016 Tmathman talk contribs 7,798 bytes +126 →Problem 12
• curprev 21:3621:36, 17 March 2016 Tmathman talk contribs m 7,672 bytes +3 →Problem 8
• curprev 21:3521:35, 17 March 2016 Tmathman talk contribs m 7,669 bytes +1 →Problem 7
• curprev 21:1721:17, 17 March 2016 Dli00105 talk contribs 7,668 bytes +7,668 Repost (discussion now legal)