Problems

Problem Category Types Points AC % Users
Rotations in 3 Dimensions Fun Math Geometry 12 30.9% 80
A Plus B Fun Math Simple Math 3p 46.0% 4592
A Plus B (Hard) Fun Math Intermediate Math 15p 14.6% 353
A Simple Mean Fun Math Simple Math 7 12.3% 25
A Simple Maximum Fun Math Simple Math 8 14.6% 21
A Simple Mode Fun Math Simple Math 8p 8.4% 13
A Simple Minus Fun Math Ad Hoc 10 28.8% 13
A Simple Multiplication Fun Math Intermediate Math 12 8.9% 10
A Times B Fun Math Advanced Math 20p 13.9% 78
Bad Paths Fun Math Intermediate Math 12p 21.2% 30
Binary Fun Math Simple Math, String Algorithms 5 22.5% 662
Matrix Determinant Fun Math Advanced Math 30p 10.3% 27
Digit Sum Fun Math Implementation 15 4.9% 7
Fast Factorial Calculator Fun Math Intermediate Math 10 15.7% 319
Fast Factorial Calculator 2 Fun Math Ad Hoc 25p 12.7% 34
Fast Factorial Calculator 3 Fun Math Advanced Math 50 0.3% 1
Fibonacci Sequence Fun Math Advanced Math 15p 12.1% 385
Fibonacci Sequence (Harder) Fun Math Advanced Math 20 23.1% 136
A Floyd-Warshall Problem Fun Math Graph Theory 15 7.1% 1
Angie and Functions (Hard) Fun Math Advanced Math, Data Structures 30 0.0% 0
Troubling Triangles Fun Math Intermediate Math 7 26.6% 268
Grid 1.5 Fun Math Dynamic Programming, Intermediate Math 10p 15.1% 15
Infinity Fun Math Simple Math 3 34.0% 457
Modulo Sort Fun Math Ad Hoc, Simple Math 5p 36.9% 50
Next Semiprime Fun Math Intermediate Math 10p 13.0% 18
The Odd Number Fun Math Intermediate Math 7 18.0% 277
The Mirror Fun Math Simple Math 5 31.7% 492
The Third Cellar Fun Math Intermediate Math 10 27.7% 218
The Torture Chamber Fun Math Advanced Math 20 15.6% 156
Phantom's Python Challenge Fun Math Implementation 40p 1.7% 7
Postfix Notation Fun Math Implementation, String Algorithms 7 17.1% 268
Prime Factorization Fun Math Intermediate Math 7 23.0% 586
Strategic Arrays Fun Math Advanced Math 15p 33.3% 23
XOR Fun Math Intermediate Math 7 39.9% 256
XOR Sum Fun Math Intermediate Math 10 41.5% 133