All Contributions

Complete record of every solution change. Each contribution is peer-reviewed.

Contribute

19804 contributions

1933 problems

97 contributors

solved· 8.4.15

8.4.15 edit

astrosander August 10, 2026 at 06:52 AM

#19952

3 hours 53 minutes between problems

solved· 3.5.29 in 4 minutes 41 seconds

3.5.29 edit

Tete August 10, 2026 at 02:58 AM

#19951

3.5.29 new solution

Tete August 10, 2026 at 02:54 AM

#19950

1 hour 26 minutes between problems

solved· 13.3.28 in 6 minutes 24 seconds

13.3.28 edit

Tete August 10, 2026 at 01:27 AM

#19949

13.3.28 new solution

Tete August 10, 2026 at 01:21 AM

#19948

5 hours 30 minutes between problems

solved· 7.4.10

7.4.10 comment

Valter August 9, 2026 at 09:25 PM

thread

7.4.10 comment

Valter August 9, 2026 at 09:24 PM

thread

7.4.10 comment

igor August 9, 2026 at 09:23 PM

thread

7.4.10 comment

Valter August 9, 2026 at 09:20 PM

thread

7.4.10 comment

igor August 9, 2026 at 09:12 PM

thread

7.4.10 comment

Valter August 9, 2026 at 09:09 PM

thread

7.4.10 comment

igor August 9, 2026 at 09:03 PM

thread

7.4.10 comment

Valter August 9, 2026 at 08:50 PM

thread

7.4.10 comment

Valter August 9, 2026 at 08:50 PM

thread

7.4.10 comment

igor August 9, 2026 at 08:44 PM

thread

7.4.10 comment

Valter August 9, 2026 at 08:40 PM

thread

7.4.10 comment

igor August 9, 2026 at 08:25 PM

thread

7.4.10 comment

Valter August 9, 2026 at 08:20 PM

thread

7.4.10 comment

igor August 9, 2026 at 08:16 PM

thread

7.4.10 comment

Valter August 9, 2026 at 07:57 PM

thread

7.4.10 comment

Valter August 9, 2026 at 07:53 PM

thread

7.4.10 comment

Valter August 9, 2026 at 07:52 PM

thread

7.4.10 edit

Valter August 9, 2026 at 07:50 PM

#19947

7.4.10 comment

igor August 9, 2026 at 07:49 PM

thread

7.4.10 comment

igor August 9, 2026 at 07:40 PM

thread

46 minutes between problems

solved· 3.3.20 in 4 minutes 50 seconds

3.3.20 edit

Valter August 9, 2026 at 07:04 PM

#19946

3.3.20 edit

Valter August 9, 2026 at 07:02 PM

#19945

3.3.20 edit

Valter August 9, 2026 at 06:59 PM

#19944

42 minutes between problems

solved· 10.2.7 in 10 minutes 46 seconds

10.2.7 edit

Valter August 9, 2026 at 06:16 PM

#19943

10.2.7 edit

Valter August 9, 2026 at 06:11 PM

#19942

10.2.7 edit

Valter August 9, 2026 at 06:06 PM

#19941

12 minutes between problems

solved· 7.4.10 in 8 minutes 11 seconds

7.4.10 edit

Valter August 9, 2026 at 05:53 PM

#19940

7.4.10 edit

Valter August 9, 2026 at 05:51 PM

#19939

7.4.10 edit

Valter August 9, 2026 at 05:45 PM

#19938

2 hours 6 minutes between problems

solved· 3.9.10

3.9.10 comment

emixter August 9, 2026 at 03:38 PM

thread

6 hours 43 minutes between problems

solved· 7.4.10

7.4.10 comment

Valter August 9, 2026 at 08:55 AM

thread

7.4.10 comment

Valter August 9, 2026 at 08:39 AM

thread

7.4.10 comment

igor August 9, 2026 at 08:37 AM

thread

7.4.10 comment

Valter August 9, 2026 at 08:32 AM

thread

1 hour 31 minutes between problems

solved· 1.1.15

1.1.15 edit

astrosander August 9, 2026 at 07:23 AM

#19937

less than a minute between problems

solved· 1.1.14

1.1.14 edit

astrosander August 9, 2026 at 07:23 AM

#19936

less than a minute between problems

solved· 1.1.13

1.1.13 edit

astrosander August 9, 2026 at 07:23 AM

#19935

1 minute between problems

solved· 1.1.12

1.1.12 edit

astrosander August 9, 2026 at 07:21 AM

#19934

less than a minute between problems

solved· 1.1.11

1.1.11 edit

astrosander August 9, 2026 at 07:21 AM

#19933

less than a minute between problems

solved· 1.1.10

1.1.10 edit

astrosander August 9, 2026 at 07:20 AM

#19932

less than a minute between problems

solved· 1.1.9 in 1 minute 46 seconds

1.1.9 edit

astrosander August 9, 2026 at 07:19 AM

#19931

1.1.9 edit

astrosander August 9, 2026 at 07:19 AM

#19930

1.1.9 edit

astrosander August 9, 2026 at 07:18 AM

#19929

1 minute between problems

solved· 1.1.8

1.1.8 edit

astrosander August 9, 2026 at 07:16 AM

#19928

less than a minute between problems

solved· 1.1.6

1.1.6 edit

astrosander August 9, 2026 at 07:16 AM

#19927

less than a minute between problems

solved· 1.1.5

1.1.5 edit

astrosander August 9, 2026 at 07:16 AM

#19926

less than a minute between problems

solved· 1.1.4

1.1.4 edit

astrosander August 9, 2026 at 07:15 AM

#19925

less than a minute between problems

solved· 1.1.3

1.1.3 edit

astrosander August 9, 2026 at 07:15 AM

#19924

less than a minute between problems

solved· 1.1.2

1.1.2 edit

astrosander August 9, 2026 at 07:15 AM

#19923

less than a minute between problems

solved· 2.1.23

2.1.23 edit

astrosander August 9, 2026 at 07:14 AM

#19922

36 minutes between problems

solved· 1.1.1 in 55 seconds

1.1.1 edit

astrosander August 9, 2026 at 06:37 AM

#19921

1.1.1 edit

astrosander August 9, 2026 at 06:37 AM

#19920

1.1.1 edit

astrosander August 9, 2026 at 06:37 AM

#19919

3 minutes between problems

solved· 13.2.13

13.2.13 comment

Valter August 9, 2026 at 06:33 AM

thread

58 minutes between problems

solved· 3.9.10

3.9.10 comment

astrosander August 9, 2026 at 05:35 AM

thread

1 hour 3 minutes between problems

solved· 13.2.11 in 12 seconds

13.2.11 comment

astrosander August 9, 2026 at 05:24 AM

thread

13.2.11 edit

astrosander August 9, 2026 at 04:31 AM

#19918

13.2.11 edit

astrosander August 9, 2026 at 04:31 AM

#19917

1 minute between problems

solved· 13.2.13

13.2.13 comment

astrosander August 9, 2026 at 04:29 AM

thread

9 hours 9 minutes between problems

solved· 10.2.8 in 7 minutes 3 seconds

10.2.8 edit

Valter August 8, 2026 at 07:19 PM

#19916

10.2.8 comment

Valter August 8, 2026 at 07:16 PM

thread

10.2.8 comment

Valter August 8, 2026 at 07:16 PM

thread

10.2.8 edit

Valter August 8, 2026 at 07:12 PM

#19915

18 minutes between problems

solved· 5.10.3 in 1 hour 14 minutes

5.10.3 edit

Valter August 8, 2026 at 06:54 PM

#19914

5.10.3 edit

Valter August 8, 2026 at 05:41 PM

#19913

5.10.3 edit

Valter August 8, 2026 at 05:39 PM

#19912

57 minutes between problems

solved· 11.1.1 in 14 minutes 1 second

11.1.1 edit

Valter August 8, 2026 at 04:41 PM

#19911

11.1.1 edit

Valter August 8, 2026 at 04:41 PM

#19910

11.1.1 edit

Valter August 8, 2026 at 04:40 PM

#19909

11.1.1 edit

Valter August 8, 2026 at 04:38 PM

#19908

11.1.1 edit

Valter August 8, 2026 at 04:37 PM

#19907

11.1.1 edit

Valter August 8, 2026 at 04:36 PM

#19906

11.1.1 comment

Valter August 8, 2026 at 04:29 PM

thread

11.1.1 edit

Valter August 8, 2026 at 04:27 PM

#19905

6 minutes between problems

solved· 13.3.17 in 4 minutes 43 seconds

13.3.17 edit

Tete August 8, 2026 at 04:21 PM

#19904

13.3.17 new solution

Tete August 8, 2026 at 04:16 PM

#19903

3 hours 2 minutes between problems

solved· 3.5.39 in 6 minutes 17 seconds

3.5.39 edit

Tete August 8, 2026 at 01:14 PM

#19902

3.5.39 new solution

Tete August 8, 2026 at 01:08 PM

#19901

29 minutes between problems

solved· 2.7.20 in 2 minutes 45 seconds

2.7.20 edit

Adler August 8, 2026 at 12:38 PM

#19900

2.7.20 edit

Adler August 8, 2026 at 12:37 PM

#19899

2.7.20 edit

Adler August 8, 2026 at 12:36 PM

#19898

4 hours 13 minutes between problems

solved· 3.5.38

3.5.38 comment

Valter August 8, 2026 at 08:22 AM

thread

3.5.38 comment

Tete August 8, 2026 at 08:17 AM

thread

23 minutes between problems

solved· 2.3.18 in 10 minutes 55 seconds

2.3.18 edit

Valter August 8, 2026 at 07:58 AM

#19897

2.3.18 edit

Valter August 8, 2026 at 07:53 AM

#19896

2.3.18 edit

Valter August 8, 2026 at 07:51 AM

#19895

2.3.18 edit

Valter August 8, 2026 at 07:47 AM

#19894

1 hour 7 minutes between problems

solved· 3.5.38 in 1 hour 9 minutes

3.5.38 comment

Valter August 8, 2026 at 06:44 AM

thread

3.5.38 edit

Valter August 8, 2026 at 06:40 AM

#19893

3.5.38 edit

Valter August 8, 2026 at 06:38 AM

#19892

3.5.38 edit

Valter August 8, 2026 at 06:35 AM

#19891

3.5.38 edit

Valter August 8, 2026 at 06:22 AM

#19890

3.5.38 comment

igor August 8, 2026 at 06:16 AM

thread

3.5.38 edit

Tete August 8, 2026 at 05:34 AM

#19889

3.5.38 new solution

Tete August 8, 2026 at 05:30 AM

#19888

3 hours 12 minutes between problems

solved· 13.4.13 in 7 minutes 47 seconds

13.4.13 edit

Tete August 8, 2026 at 02:17 AM

#19887

13.4.13 new solution

Tete August 8, 2026 at 02:09 AM

#19886

2 hours 1 minute between problems

solved· 13.4.11

13.4.11 edit

Tete August 8, 2026 at 12:07 AM

#19885

4 hours 49 minutes between problems

solved· 5.6.1 in 18 minutes 5 seconds

5.6.1 edit

Valter August 7, 2026 at 07:18 PM

#19884

5.6.1 edit

Valter August 7, 2026 at 07:17 PM

#19883

5.6.1 edit

Valter August 7, 2026 at 06:59 PM

#19882

1 hour 54 minutes between problems

solved· 13.4.11 in 6 minutes 10 seconds

13.4.11 edit

Tete August 7, 2026 at 05:05 PM

#19881

13.4.11 new solution

Tete August 7, 2026 at 04:58 PM

#19880

48 minutes between problems

solved· 13.4.12 in 48 seconds

13.4.12 edit

Tete August 7, 2026 at 04:10 PM

#19879

13.4.12 new solution

Tete August 7, 2026 at 04:09 PM

#19878

2 hours 17 minutes between problems

solved· 5.5.19 in 4 minutes 9 seconds

5.5.19 edit

Valter August 7, 2026 at 01:52 PM

#19877

5.5.19 edit

Valter August 7, 2026 at 01:48 PM

#19876

36 minutes between problems

solved· 5.5.5 in 3 minutes 44 seconds

5.5.5 edit

Valter August 7, 2026 at 01:11 PM

#19875

5.5.5 edit

Valter August 7, 2026 at 01:07 PM

#19874

2 hours 9 minutes between problems

solved· 3.5.41 in 6 minutes 1 second

3.5.41 edit

Tete August 7, 2026 at 10:58 AM

#19873

3.5.41 new solution

Tete August 7, 2026 at 10:52 AM

#19872

2 hours 10 minutes between problems

solved· 4.1.3

4.1.3 comment

Valter August 7, 2026 at 08:41 AM

thread

4.1.3 comment

muhammadazizmakhsutaliyev August 7, 2026 at 08:29 AM

thread

4 hours 54 minutes between problems

solved· 13.4.8 in 5 minutes 17 seconds

13.4.8 edit

Tete August 7, 2026 at 03:47 AM

#19871

13.4.8 new solution

Tete August 7, 2026 at 03:42 AM

#19870

1 hour 20 minutes between problems

solved· 2.2.32

2.2.32 comment

astrosander August 7, 2026 at 02:21 AM

thread

1 minute between problems

solved· 13.4.6 in 6 minutes 21 seconds

13.4.6 edit

Tete August 7, 2026 at 02:19 AM

#19869

13.4.6 edit

Tete August 7, 2026 at 02:13 AM

#19868

2 hours 58 minutes between problems

solved· 13.1.16

13.1.16 edit

Tete August 6, 2026 at 11:14 PM

#19867

11 minutes between problems

solved· 13.3.23 in 4 minutes 37 seconds

13.3.23 edit

Tete August 6, 2026 at 11:03 PM

#19866

13.3.23 new solution

Tete August 6, 2026 at 10:59 PM

#19865

13 hours 27 minutes between problems

solved· 5.5.4

5.5.4 edit

Valter August 6, 2026 at 09:31 AM

#19864

14 minutes between problems

solved· 2.1.9 in 12 minutes 5 seconds

2.1.9 edit

BlueMinihornet August 6, 2026 at 09:16 AM

#19863

2.1.9 edit

BlueMinihornet August 6, 2026 at 09:04 AM

#19862

5 hours 15 minutes between problems

solved· 13.1.16 in 3 minutes 40 seconds

13.1.16 edit

Tete August 6, 2026 at 03:48 AM

#19861

13.1.16 new solution

Tete August 6, 2026 at 03:45 AM

#19860

17 minutes between problems

solved· 13.3.21 in 3 minutes 47 seconds

13.3.21 edit

Tete August 6, 2026 at 03:27 AM

#19859

13.3.21 new solution

Tete August 6, 2026 at 03:23 AM

#19858

8 hours 47 minutes between problems

solved· 5.5.4 in 28 minutes 31 seconds

5.5.4 edit

Valter August 5, 2026 at 06:35 PM

#19857

5.5.4 edit

Valter August 5, 2026 at 06:26 PM

#19856

5.5.4 edit

Valter August 5, 2026 at 06:07 PM

#19855

9 minutes between problems

solved· 5.5.2 in 1 minute 33 seconds

5.5.2 edit

Valter August 5, 2026 at 05:58 PM

#19854

5.5.2 edit

Valter August 5, 2026 at 05:56 PM

#19853

9 minutes between problems

solved· 5.5.1 in 42 seconds

5.5.1 edit

Valter August 5, 2026 at 05:46 PM

#19852

5.5.1 edit

Valter August 5, 2026 at 05:46 PM

#19851

1 hour 2 minutes between problems

solved· 13.3.22 in 6 minutes 42 seconds

13.3.22 edit

Tete August 5, 2026 at 04:44 PM

#19850

13.3.22 new solution

Tete August 5, 2026 at 04:37 PM

#19849

5 hours 27 minutes between problems

solved· 6.3.7 in 15 minutes 25 seconds

6.3.7 edit

Valter August 5, 2026 at 11:10 AM

#19848

6.3.7 edit

Valter August 5, 2026 at 10:54 AM

#19847

3 hours 39 minutes between problems

solved· 1.1.4

1.1.4 comment

astrosander August 5, 2026 at 07:22 AM

thread

1.1.4 edit

astrosander August 5, 2026 at 07:15 AM

#19846

32 minutes between problems

solved· 1.1.5

1.1.5 edit

astrosander August 5, 2026 at 06:43 AM

#19845

less than a minute between problems

solved· 1.1.4

1.1.4 edit

astrosander August 5, 2026 at 06:42 AM

#19844

12 hours 10 minutes between problems

solved· 2.2.31

2.2.31 edit

Valter August 4, 2026 at 06:32 PM

#19843

3 minutes between problems

solved· 2.2.32 in 1 minute 11 seconds

2.2.32 edit

Valter August 4, 2026 at 06:28 PM

#19842

2.2.32 edit

Valter August 4, 2026 at 06:27 PM

#19841

2.2.32 edit

Valter August 4, 2026 at 06:27 PM

#19840

less than a minute between problems

solved· 2.2.31 in 3 minutes 22 seconds

2.2.31 edit

Valter August 4, 2026 at 06:26 PM

#19839

2.2.31 edit

Valter August 4, 2026 at 06:25 PM

#19838

2.2.31 edit

Valter August 4, 2026 at 06:23 PM

#19837

2 minutes between problems

solved· 2.2.32

2.2.32 edit

Valter August 4, 2026 at 06:21 PM

#19836

2.2.32 comment

Valter August 4, 2026 at 06:18 PM

thread

22 minutes between problems

solved· 1.1.4

1.1.4 comment

ImbirFreddy August 4, 2026 at 05:58 PM

thread

19 minutes between problems

solved· 2.2.4 in 7 minutes 37 seconds

2.2.4 edit

Valter August 4, 2026 at 05:39 PM

#19835

2.2.4 edit

Valter August 4, 2026 at 05:37 PM

#19834

2.2.4 comment

Valter August 4, 2026 at 05:33 PM

thread

2.2.4 edit

Valter August 4, 2026 at 05:31 PM

#19833

1 hour 45 minutes between problems

solved· 4.3.5

4.3.5 edit

Valter August 4, 2026 at 03:46 PM

#19832

27 minutes between problems

solved· 3.5.3 in 17 minutes 38 seconds

3.5.3 edit

Valter August 4, 2026 at 03:19 PM

#19831

3.5.3 edit

Valter August 4, 2026 at 03:15 PM

#19830

3.5.3 edit

Valter August 4, 2026 at 03:14 PM

#19829

3.5.3 new solution

Valter August 4, 2026 at 03:01 PM

#19828

4 minutes between problems

solved· 3.5.18 in 16 minutes 39 seconds

3.5.18 edit

Valter August 4, 2026 at 02:57 PM

#19827

3.5.18 edit

Valter August 4, 2026 at 02:56 PM

#19826

3.5.18 edit

Valter August 4, 2026 at 02:43 PM

#19825

3.5.18 new solution

Valter August 4, 2026 at 02:40 PM

#19824

57 minutes between problems

solved· 13.1.18

13.1.18 edit

Tete August 4, 2026 at 01:43 PM

#19823

4 hours 11 minutes between problems

solved· 13.3.18 in 7 minutes 1 second

13.3.18 edit

Tete August 4, 2026 at 09:31 AM

#19822

13.3.18 new solution

Tete August 4, 2026 at 09:24 AM

#19821

5 hours 57 minutes between problems

solved· 3.5.36 in 9 minutes 42 seconds

3.5.36 edit

Tete August 4, 2026 at 03:27 AM

#19820

3.5.36 new solution

Tete August 4, 2026 at 03:17 AM

#19819

1 hour 17 minutes between problems

solved· 3.5.25 in 2 minutes 27 seconds

3.5.25 edit

Tete August 4, 2026 at 02:00 AM

#19818

3.5.25 new solution

Tete August 4, 2026 at 01:57 AM

#19817

12 hours 56 minutes between problems

solved· 4.1.12 in 23 seconds

4.1.12 edit

Valter August 3, 2026 at 01:00 PM

#19816

4.1.12 edit

Valter August 3, 2026 at 01:00 PM

#19815

1 hour 12 minutes between problems

solved· 2.1.3

2.1.3 comment

Valter August 3, 2026 at 11:47 AM

thread

2.1.3 comment

Valter August 3, 2026 at 11:47 AM

thread

55 minutes between problems

solved· 4.1.12

4.1.12 edit

Valter August 3, 2026 at 10:52 AM

#19814

56 minutes between problems

solved· 4.1.6 in 2 minutes 56 seconds

4.1.6 edit

Valter August 3, 2026 at 09:56 AM

#19813

4.1.6 edit

Valter August 3, 2026 at 09:55 AM

#19812

4.1.6 edit

Valter August 3, 2026 at 09:53 AM

#19811

4.1.6 comment

Valter August 3, 2026 at 09:51 AM

thread

4.1.6 comment

Valter August 3, 2026 at 09:50 AM

thread

22 minutes between problems

solved· 4.1.3 in 8 minutes 17 seconds

4.1.3 edit

Valter August 3, 2026 at 09:30 AM

#19810

4.1.3 edit

Valter August 3, 2026 at 09:29 AM

#19809

4.1.3 comment

Valter August 3, 2026 at 09:23 AM

thread

4.1.3 comment

Valter August 3, 2026 at 09:22 AM

thread

4.1.3 edit

Valter August 3, 2026 at 09:22 AM

#19808

4.1.3 comment

Valter August 3, 2026 at 09:18 AM

thread

45 minutes between problems

solved· 3.9.14 in 2 hours 51 minutes

3.9.14 edit

igor August 3, 2026 at 08:36 AM

#19807

3.9.14 edit

igor August 3, 2026 at 08:12 AM

#19806

3.9.14 edit

igor August 3, 2026 at 08:05 AM

#19805

3.9.14 edit

igor August 3, 2026 at 07:58 AM

#19804

3.9.14 edit

igor August 3, 2026 at 07:57 AM

#19803

3.9.14 edit

igor August 3, 2026 at 07:49 AM

#19802

3.9.14 new solution

igor August 3, 2026 at 05:44 AM

#19801

3 hours 49 minutes between problems

solved· 3.5.31

3.5.31 comment

igor August 3, 2026 at 01:55 AM

thread

3.5.31 comment

Tete August 3, 2026 at 12:19 AM

thread

3.5.31 comment

igor August 2, 2026 at 06:44 PM

thread

8 hours 4 minutes between problems

solved· 3.5.30 in 1 minute 8 seconds

3.5.30 edit

Tete August 2, 2026 at 05:50 PM

#19800

3.5.30 new solution

Tete August 2, 2026 at 05:49 PM

#19799

3 minutes between problems

solved· 3.5.31 in 4 minutes 50 seconds

3.5.31 edit

Tete August 2, 2026 at 05:46 PM

#19798

3.5.31 new solution

Tete August 2, 2026 at 05:41 PM

#19797

4 hours 28 minutes between problems

solved· 13.4.5 in 6 minutes 36 seconds

13.4.5 edit

Tete August 2, 2026 at 01:13 PM

#19796

13.4.5 new solution

Tete August 2, 2026 at 01:06 PM

#19795

1 hour 40 minutes between problems

solved· 3.1.14 in 26 minutes 10 seconds

3.1.14 edit

Valter August 2, 2026 at 11:26 AM

#19794

3.1.14 edit

Valter August 2, 2026 at 11:12 AM

#19793

3.1.14 edit

Valter August 2, 2026 at 11:00 AM

#19792

2 hours 3 minutes between problems

solved· 2.1.52 in 41 minutes 8 seconds

2.1.52 edit

Valter August 2, 2026 at 08:56 AM

#19791

2.1.52 edit

Valter August 2, 2026 at 08:15 AM

#19790

21 hours 46 minutes between problems

solved· 13.3.11 in 11 minutes 48 seconds

13.3.11 edit

Kvarkovich August 1, 2026 at 10:29 AM

#19789

13.3.11 edit

Kvarkovich August 1, 2026 at 10:17 AM

#19788

6 minutes between problems

solved· 5.6.30

5.6.30 edit

Valter August 1, 2026 at 10:11 AM

#19787

2 minutes between problems

solved· 3.3.31

3.3.31 edit

Kvarkovich August 1, 2026 at 10:09 AM

#19786

less than a minute between problems

solved· 5.6.30

5.6.30 edit

Valter August 1, 2026 at 10:08 AM

#19785

5 minutes between problems

solved· 3.3.31

3.3.31 edit

Kvarkovich August 1, 2026 at 10:02 AM

#19784

31 minutes between problems

solved· 9.2.20 in 6 minutes 19 seconds

9.2.20 edit

Valter August 1, 2026 at 09:31 AM

#19783

9.2.20 edit

Valter August 1, 2026 at 09:24 AM

#19782

9.2.20 edit

Valter August 1, 2026 at 09:24 AM

#19781

8 hours 45 minutes between problems

solved· 13.3.20 in 5 minutes 53 seconds

13.3.20 edit

Tete August 1, 2026 at 12:39 AM

#19780

13.3.20 new solution

Tete August 1, 2026 at 12:33 AM

#19779

10 hours 54 minutes between problems

solved· 7.2.9 in 25 minutes 42 seconds

7.2.9 edit

Valter July 31, 2026 at 01:39 PM

#19778

7.2.9 edit

Valter July 31, 2026 at 01:36 PM

#19777

7.2.9 edit

Valter July 31, 2026 at 01:13 PM

#19776

3 hours 45 minutes between problems

solved· 3.5.42 in 12 minutes 33 seconds

3.5.42 edit

Tete July 31, 2026 at 09:27 AM

#19775

3.5.42 new solution

Tete July 31, 2026 at 09:15 AM

#19774

1 hour 2 minutes between problems

solved· 7.2.9

7.2.9 comment

igor July 31, 2026 at 08:13 AM

thread

7 hours 33 minutes between problems

solved· 13.3.25 in 14 minutes 51 seconds

13.3.25 edit

Tete July 31, 2026 at 12:39 AM

#19773

13.3.25 new solution

Tete July 31, 2026 at 12:25 AM

#19772

4 hours 7 minutes between problems

solved· 5.6.7

5.6.7 edit

Picksell Prod July 30, 2026 at 08:17 PM

#19771

2 hours 11 minutes between problems

solved· 14.1.9 in 4 minutes 4 seconds

14.1.9 edit

Valter July 30, 2026 at 06:05 PM

#19770

14.1.9 edit

Valter July 30, 2026 at 06:04 PM

#19769

14.1.9 edit

Valter July 30, 2026 at 06:01 PM

#19768

10 minutes between problems

solved· 8.1.13 in 11 minutes 47 seconds

8.1.13 edit

Valter July 30, 2026 at 05:50 PM

#19767

8.1.13 edit

Valter July 30, 2026 at 05:49 PM

#19766

8.1.13 comment

Valter July 30, 2026 at 05:48 PM

thread

8.1.13 edit

Valter July 30, 2026 at 05:39 PM

#19765

8.1.13 comment

Valter July 30, 2026 at 05:38 PM

thread

8.1.13 comment

igor July 30, 2026 at 05:37 PM

thread

3 minutes between problems

solved· 14.1.9 in 20 minutes 44 seconds

14.1.9 edit

Valter July 30, 2026 at 05:35 PM

#19764

14.1.9 edit

Valter July 30, 2026 at 05:33 PM

#19763

14.1.9 edit

Valter July 30, 2026 at 05:31 PM

#19762

14.1.9 new solution

Valter July 30, 2026 at 05:14 PM

#19761

1 hour 30 minutes between problems

solved· 7.2.9 in 3 minutes 33 seconds

7.2.9 edit

Valter July 30, 2026 at 03:44 PM

#19760

7.2.9 edit

Valter July 30, 2026 at 03:41 PM

#19759

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