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Problem Category Types Points AC % Users
Facebook Hacker Cup '15 Round 1 P4 - Corporate Gifting FHC Dynamic Programming 17 46.2% 89
Facebook Hacker Cup '15 Round 2 P1 - Lazy Sort FHC Ad Hoc 10 31.9% 282
Facebook Hacker Cup '15 Round 2 P2 - All Critical FHC Dynamic Programming, Intermediate Math 15 55.2% 42
Facebook Hacker Cup '15 Round 2 P3 - Autocomplete Strikes Back FHC Dynamic Programming, String Algorithms 20 50.0% 24
Facebook Hacker Cup '15 Round 2 P4 - Fox Socks FHC Data Structures 30 10.3% 21
Facebook Hacker Cup '15 Round 3 P1 - Boomerang FHC Geometry 12p 25.3% 25
Facebook Hacker Cup '15 Round 3 P2 - Lunch Scheduling FHC Dynamic Programming 15p 14.6% 7
Facebook Hacker Cup '15 Round 3 P3 - Gentrification FHC Ad Hoc 25p 43.3% 18
Facebook Hacker Cup '15 Round 3 P4 - Fox Rocks FHC Advanced Math, Data Structures 35p 42.1% 13
Facebook Hacker Cup '17 Qualifying Round P1 - Progress Pie FHC Simple Math 5p 34.6% 20
Facebook Hacker Cup '17 Qualifying Round P2 - Lazy Loading FHC Greedy Algorithms 5p 43.0% 40
Facebook Hacker Cup '17 Qualifying Round P3 - Fighting the Zombie FHC Dynamic Programming 10p 19.7% 30
Facebook Hacker Cup '19 Final Round P1 - Strings as a Service FHC Ad Hoc, Dynamic Programming, Greedy Algorithms, String Algorithms 15p 31.3% 5
Facebook Hacker Cup '19 Final Round P6 - Temporal Revision FHC Data Structures, Dynamic Programming, Graph Theory 40p 43.8% 5
Fibonacci Sequence Uncategorized Advanced Math 15p 13.1% 818
Fibonacci Sequence (Harder) Uncategorized Advanced Math 17 19.3% 311
Figurines Uncategorized Data Structures 20 20.8% 30
Firebending Uncategorized Implementation 3 61.5% 358
Fixing Shirts Uncategorized Greedy Algorithms 15 19.4% 27
Fizz Coke Uncategorized Implementation 7p 27.4% 50
A Floyd-Warshall Problem Uncategorized Constructive, Graph Theory 15 0.6% 2
Anti-Fire Fox Uncategorized Uncategorized 25p 5.6% 2
Foxlings Uncategorized Graph Theory 10p 14.4% 81
The Fox and the Wolf Uncategorized Uncategorized 15p 6.6% 7
Imperative French Uncategorized Implementation 15 5.3% 18
Flip the Switches Uncategorized Ad Hoc 5 34.0% 355
Angie and Functions (Hard) Uncategorized Advanced Math, Data Structures 30 5.1% 2
PEG Test '11 - Cyclopian Air Uncategorized Implementation 3 29.1% 262
PEG Test '11 - Cyclopian Suits Uncategorized Implementation 3 24.7% 183
PEG Test '11 - Cyclopian Cash Uncategorized Implementation 3 28.5% 283
PEG Test '11 - Cyclopian Census Uncategorized Implementation 5 49.0% 215
PEG Test '11 - Cyclopian Puzzle Uncategorized Recursion 10 54.2% 354
The Game of Nim Uncategorized Game Theory, Interactive 12p 29.8% 33
GCC '16 P1 - Watching Anime Uncategorized Data Structures 10p 16.1% 68
GCC '16 P2 - Classified Documents Uncategorized Advanced Math 15p 10.9% 4
GCC '16 P3 - Hang Gliding Fun Uncategorized Data Structures, Graph Theory 25p 12.5% 44
Google Code Jam '08 Qualification Round Problem A - Fly Swatter Google Code Jam Geometry 20p 0.0% 0
Google Code Jam '08 Qualification Round Problem B - Saving the Universe Google Code Jam Implementation 5p 33.3% 5
Google Code Jam '08 Qualification Round Problem C - Train Timetable Google Code Jam Implementation 7p 50.0% 4
Google Code Jam '08 Round 1A Problem A - Minimum Scalar Product Google Code Jam Implementation 5p 59.3% 14
Google Code Jam '08 Round 1A Problem B - Milkshakes Google Code Jam Graph Theory 7p 66.7% 2
Google Code Jam '08 Round 1A Problem C - Numbers Google Code Jam Intermediate Math 20p 22.7% 5
Google Code Jam '09 Qualification Round Problem A - Alien Language Google Code Jam Implementation, String Algorithms 5p 66.7% 6
Google Code Jam '09 Qualification Round Problem B - Watersheds Google Code Jam Graph Theory, Implementation 5p 33.3% 4
Google Code Jam '09 Qualification Round Problem C - Welcome to Code Jam Google Code Jam Dynamic Programming 7p 23.1% 6
Google Code Jam '09 Round 1A Problem A - Multi-base happiness Google Code Jam Intermediate Math 12p 40.0% 3
Google Code Jam '09 Round 1A Problem B - Crossing the Road Google Code Jam Graph Theory 15p 11.1% 1
Google Code Jam '09 Round 1A Problem C - Collecting Cards Google Code Jam Dynamic Programming, Intermediate Math 10p 60.0% 3
Google Code Jam '10 Qualification Round Problem A - Fair Warning Google Code Jam Intermediate Math 7p 40.0% 2
Google Code Jam '10 Qualification Round Problem B - Snapper Chain Google Code Jam Implementation 5p 35.3% 6