Played Challenges
Changing date formats - 313 entries
Change the date format to Y/M/D.
- Best score: 37
- Best player score: 88
- Position: #63 / 102
- Number of attempts: 2
Generate an entry for each month - 177 entries
The input file contains a URI with a month in it. Generate the URIs for all the other months up to a couple of years
- Best score: 27
- Best player score: 57
- Position: #37 / 53
- Number of attempts: 1
Fix timezone format - 258 entries
Add the missing T and Z in the datetime field. There should be a T instead of the space, and a Z at the end of the datetime. `2024-08-31 18:32:00;` -> `2024-08-31T18:32:00Z;`
- Best score: 15
- Best player score: 17
- Position: #38 / 86
- Number of attempts: 2
Search different SQL column with similar where clause - 220 entries
Replace a column in the where clause and convert all numbers from text to numeric, by replacing the leading 0 with the code 359.
- Best score: 22
- Best player score: 27
- Position: #33 / 54
- Number of attempts: 3
Remove adjacent duplicates - 541 entries
Try to find a way to remove adjacent duplicate letters.
- Best score: 19
- Best player score: 36
- Position: #95 / 140
- Number of attempts: 3
Rearrange array to single level - 1430 entries
The goal is to flatten the array into a single list and remove any empty elements.
- Best score: 14
- Best player score: 26
- Position: #122 / 234
- Number of attempts: 2
Rearrange array to one line - 681 entries
Rearrange the array content on only one line, and remove trailing commas
- Best score: 13
- Best player score: 20
- Position: #81 / 164
- Number of attempts: 2
Copy punctuation - 536 entries
I want to copy the last line’s brackets, quotes, and commas to each line. How?
- Best score: 19
- Best player score: 30
- Position: #47 / 137
- Number of attempts: 4
New teacher - 1197 entries
Update the details of the new CS teacher.
- Best score: 19
- Best player score: 25
- Position: #119 / 251
- Number of attempts: 5
Contributed Challenges
Search different SQL column with similar where clause - 220 entries
Replace a column in the where clause and convert all numbers from text to numeric, by replacing the leading 0 with the code 359.