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Problem Category Points AC % Users
Fast Bit Counting Uncategorized 3p 47.1% 295
Fast LCA Uncategorized 12 22.2% 60
Fast LCA (Hard) Uncategorized 17 8.8% 10
The Codefather Uncategorized 15p 7.1% 23
Favorite Numbers Uncategorized 5 25.6% 131
Facebook Hacker Cup '14 Final Round P3 - Fortunate Wheels Uncategorized 40 14.6% 9
Facebook Hacker Cup '14 Final Round P4 - Tours Uncategorized 25 22.1% 23
Facebook Hacker Cup '15 Round 1 P1 - Homework FHC 10 33.9% 705
Facebook Hacker Cup '15 Round 1 P2 - Autocomplete FHC 10 38.1% 314
Facebook Hacker Cup '15 Round 1 P3 - Winning at Sports FHC 12 49.2% 204
Facebook Hacker Cup '15 Round 1 P4 - Corporate Gifting FHC 17 45.9% 89
Facebook Hacker Cup '15 Round 2 P1 - Lazy Sort FHC 10 32.1% 306
Facebook Hacker Cup '15 Round 2 P2 - All Critical FHC 15 55.1% 45
Facebook Hacker Cup '15 Round 2 P3 - Autocomplete Strikes Back FHC 20 50.0% 25
Facebook Hacker Cup '15 Round 2 P4 - Fox Socks FHC 30 10.3% 21
Facebook Hacker Cup '15 Round 3 P1 - Boomerang FHC 12p 25.2% 29
Facebook Hacker Cup '15 Round 3 P2 - Lunch Scheduling FHC 15p 14.5% 7
Facebook Hacker Cup '15 Round 3 P3 - Gentrification FHC 25p 43.0% 18
Facebook Hacker Cup '15 Round 3 P4 - Fox Rocks FHC 35p 32.6% 12
Facebook Hacker Cup '17 Qualifying Round P1 - Progress Pie FHC 5p 34.1% 21
Facebook Hacker Cup '17 Qualifying Round P2 - Lazy Loading FHC 5p 44.1% 44
Facebook Hacker Cup '17 Qualifying Round P3 - Fighting the Zombie FHC 10p 18.7% 32
Facebook Hacker Cup '19 Final Round P1 - Strings as a Service FHC 15p 31.3% 5
Facebook Hacker Cup '19 Final Round P6 - Temporal Revision FHC 40p 41.2% 5
Fibonacci Sequence Uncategorized 15p 13.6% 963
Fibonacci Sequence (Harder) Uncategorized 17 19.6% 481
Figurines Uncategorized 20 20.8% 30
Firebending Uncategorized 3 62.1% 392
Fives Uncategorized 10p 30.3% 11
Fixing Shirts Uncategorized 15 19.7% 29
Fizz Coke Uncategorized 7p 26.0% 60
A Floyd-Warshall Problem Uncategorized 15 0.6% 2
Fours Uncategorized 30p 6.3% 5
Anti-Fire Fox Uncategorized 25p 5.1% 2
Foxlings Uncategorized 10p 13.7% 103
The Fox and the Wolf Uncategorized 15p 6.6% 7
Imperative French Uncategorized 15 6.3% 23
Flip the Switches Uncategorized 5 34.3% 371
Angie and Functions (Hard) Uncategorized 30 4.5% 2
PEG Test '11 - Cyclopian Air Uncategorized 3 29.5% 277
PEG Test '11 - Cyclopian Suits Uncategorized 3 25.7% 201
PEG Test '11 - Cyclopian Cash Uncategorized 3 28.0% 312
PEG Test '11 - Cyclopian Census Uncategorized 5 49.3% 219
PEG Test '11 - Cyclopian Puzzle Uncategorized 10 54.4% 394
The Game of Nim Uncategorized 12p 29.8% 35
GCC '16 P1 - Watching Anime Uncategorized 10p 17.7% 85
GCC '16 P2 - Classified Documents Uncategorized 15p 10.3% 4
GCC '16 P3 - Hang Gliding Fun Uncategorized 25p 12.6% 45
Google Code Jam '08 Qualification Round Problem A - Fly Swatter Google Code Jam 20p 10.0% 2
Google Code Jam '08 Qualification Round Problem B - Saving the Universe Google Code Jam 5p 24.2% 7