Contest Archive

Browse through our past competitions, problems, and solutions. A valuable resource for practice and learning.

2025

A
Polly's New LaptopEasy
ProblemSolution
B
Make the GradeEasy
ProblemSolution
C
Magical MirrorEasy
ProblemSolution
D
Starr Showdown!Easy
ProblemSolution
E
Hexadecimal HexMedium
ProblemSolution
F
Blocked OutMedium
ProblemSolution
G
Recursive DartboardHard
ProblemSolution
H1
Bitstring Birthday Game (Easy Version)Medium
ProblemSolution
H2
Bitstring Birthday Game (Hard Version)Hard
ProblemSolution
I1
High Rollers (Easy Version)Hard
ProblemSolution
I2
High Rollers (Hard Version)Hard
ProblemSolution
11 problemsView full contest details

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