Played Challenges
Fix timezone format - 183 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: #29 / 60
- Number of attempts: 2
Search different SQL column with similar where clause - 105 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: #24 / 35
- Number of attempts: 3
Remove adjacent duplicates - 362 entries
Try to find a way to remove adjacent duplicate letters.
- Best score: 19
- Best player score: 36
- Position: #70 / 101
- Number of attempts: 3
Rearrange array to single level - 1092 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: #95 / 184
- Number of attempts: 2
Rearrange array to one line - 521 entries
Rearrange the array content on only one line, and remove trailing commas
- Best score: 13
- Best player score: 20
- Position: #64 / 129
- Number of attempts: 2
Copy punctuation - 419 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: #41 / 106
- Number of attempts: 4
New teacher - 836 entries
Update the details of the new CS teacher.
- Best score: 19
- Best player score: 25
- Position: #88 / 174
- Number of attempts: 5
Contributed Challenges
Search different SQL column with similar where clause - 105 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.