1 June 2025

• curprev 15:5315:53, 1 June 2025 Judokid talk contribs m 7,754 bytes −13 →Solution 1: Changed ebding a bit.
• curprev 15:3515:35, 1 June 2025 Judokid talk contribs m 7,767 bytes +2 →Solution: little fix
• curprev 15:3415:34, 1 June 2025 Judokid talk contribs m 7,765 bytes −22 →Solution: little fix

16 November 2022

• curprev 17:2817:28, 16 November 2022 Puffer13 talk contribs m 7,787 bytes −55 →See Also
• curprev 17:2717:27, 16 November 2022 Puffer13 talk contribs m 7,842 bytes −238 →Solution 3 (Cheap Realization)

11 November 2022

• curprev 16:4616:46, 11 November 2022 Ssding talk contribs m 8,080 bytes +3 →Solution 3 (Cheap Realization): fixed grammer

16 September 2022

• curprev 08:5008:50, 16 September 2022 Leranjun talk contribs m 8,077 bytes −43 →See Also
• curprev 08:4808:48, 16 September 2022 Leranjun talk contribs m 8,120 bytes +15 No edit summary

30 July 2022

• curprev 15:4915:49, 30 July 2022 Ambriggs talk contribs 8,105 bytes +155 →Solution 3(Cheap Realization)

23 September 2021

• curprev 19:0119:01, 23 September 2021 Shihan talk contribs m 7,950 bytes −1 →Solution
• curprev 19:0119:01, 23 September 2021 Shihan talk contribs m 7,951 bytes −434 →Solution

1 August 2021

• curprev 11:5011:50, 1 August 2021 Sosiaops talk contribs m 8,385 bytes +145 fixed floor size

27 January 2021

• curprev 00:0500:05, 27 January 2021 Alexlikemath talk contribs m 8,240 bytes −1 No edit summary

26 January 2021

• curprev 22:0122:01, 26 January 2021 Alexlikemath talk contribs 8,241 bytes +3,175 new solution

6 December 2020

• curprev 23:1423:14, 6 December 2020 Oreochocolate talk contribs 5,066 bytes −31 Undo revision 129767 by Rainestorm (talk) Non-constructive. Tag: Undo

29 July 2020

• curprev 18:0618:06, 29 July 2020 Rainestorm talk contribs m 5,097 bytes +31 →Solution 2(Cheap Realization)

15 June 2020

• curprev 01:1301:13, 15 June 2020 Pleaseletmewin talk contribs m 5,066 bytes +1 →Solution 2(Cheap Realization)
• curprev 01:1301:13, 15 June 2020 Pleaseletmewin talk contribs m 5,065 bytes −3 →Solution 2(Cheap Realization)

22 February 2020

• curprev 16:5416:54, 22 February 2020 Rowechen talk contribs 5,068 bytes +97 →See Also

23 November 2019

• curprev 00:2400:24, 23 November 2019 Vvluo talk contribs 4,971 bytes +236 →Solution

20 June 2018

• curprev 10:1110:11, 20 June 2018 P groudon talk contribs 4,735 bytes +13 No edit summary
• curprev 10:1010:10, 20 June 2018 P groudon talk contribs 4,722 bytes +52 No edit summary

21 May 2018

• curprev 20:0620:06, 21 May 2018 P groudon talk contribs 4,670 bytes +39 No edit summary

16 December 2017

• curprev 22:1022:10, 16 December 2017 Coolak talk contribs m 4,631 bytes +397 →Solution

5 February 2016

• curprev 20:0520:05, 5 February 2016 FractalMathHistory talk contribs 4,234 bytes 0 →Solution
• curprev 20:0520:05, 5 February 2016 FractalMathHistory talk contribs 4,234 bytes 0 →Solution
• curprev 20:0520:05, 5 February 2016 FractalMathHistory talk contribs 4,234 bytes +18 →Solution

4 February 2016

• curprev 16:1216:12, 4 February 2016 Yrnsmurf talk contribs 4,216 bytes +10 →See Also
• curprev 10:4510:45, 4 February 2016 FractalMathHistory talk contribs 4,206 bytes 0 →Solution
• curprev 10:4210:42, 4 February 2016 FractalMathHistory talk contribs 4,206 bytes −10 →See Also
• curprev 10:4110:41, 4 February 2016 FractalMathHistory talk contribs 4,216 bytes +86 →Solution
• curprev 10:3910:39, 4 February 2016 FractalMathHistory talk contribs 4,130 bytes −7 →Solution
• curprev 10:3610:36, 4 February 2016 FractalMathHistory talk contribs 4,137 bytes −3 →Solution
• curprev 10:3510:35, 4 February 2016 FractalMathHistory talk contribs 4,140 bytes +12 →Solution
• curprev 10:3510:35, 4 February 2016 FractalMathHistory talk contribs 4,128 bytes +1,043 →Problem 25
• curprev 01:0101:01, 4 February 2016 Torrancetartar talk contribs 3,085 bytes +3,085 Created page with "==Problem 25== Problem Let k be a positive integer. Bernardo and Silvia take turns writing and erasing numbers on a blackboard as follows: Bernardo starts by writing the sma..."