Language Details: Perl
- Qualification Round
- Used in 611 solutions by 196 contestants:
- Saving the Universe: 177 small solutions, 163 large solutions.
- Train Timetable: 131 small solutions, 114 large solutions.
- Fly Swatter: 19 small solutions, 7 large solutions.
- Round 1A
- Used in 141 solutions by 62 contestants:
- Minimum Scalar Product: 57 small solutions, 47 large solutions.
- Milkshakes: 8 small solutions, 6 large solutions.
- Numbers: 21 small solutions, 2 large solutions.
- Round 1B
- Used in 32 solutions by 31 contestants:
- Crop Triangles: 26 small solutions.
- Number Sets: 5 small solutions.
- Mousetrap: 1 small solution.
- Round 1C
- Used in 81 solutions by 43 contestants:
- Text Messaging Outrage: 43 small solutions, 36 large solutions.
- Ugly Numbers: 1 small solution.
- Increasing Speed Limits: 1 small solution.
- Round 2
- Used in 26 solutions by 15 contestants:
- Cheating a Boolean Tree: 7 small solutions, 5 large solutions.
- Triangle Areas: 6 small solutions, 1 large solution.
- PermRLE: 7 small solutions.
Submission Origin
| United States (60 contestants) India (22 contestants) Brazil (11 contestants) Russia (11 contestants) China (10 contestants) Japan (9 contestants) Canada (7 contestants) Israel (7 contestants) Poland (6 contestants) United Kingdom (6 contestants) Germany (5 contestants) Ukraine (4 contestants) Australia (3 contestants) | Italy (3 contestants) Mexico (3 contestants) Netherlands (3 contestants) Portugal (3 contestants) Taiwan (3 contestants) Argentina (2 contestants) Czech Republic (2 contestants) Hungary (2 contestants) South Korea (2 contestants) Sweden (2 contestants) Thailand (2 contestants) Afghanistan (1 contestant) Austria (1 contestant) | Belarus (1 contestant) Bulgaria (1 contestant) Chile (1 contestant) Colombia (1 contestant) Dominican Republic (1 contestant) Greece (1 contestant) Hong Kong (1 contestant) Malaysia (1 contestant) New Zealand (1 contestant) Romania (1 contestant) Singapore (1 contestant) Spain (1 contestant) Switzerland (1 contestant) |