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Problems
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Problems

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Difficulty
Sort by
793
Showstopper
Very easy
796
The Stable Marriage Problem
Medium
797
Arne Saknussemm
Very easy
817
Broken Calculator
Easy
821
Grasshopper
Medium
822
Unpacking a line
Very easy
831
Expression
Easy
835
Poker
Very easy
836
Prime numbers 2
Easy
840
Long sum
Very easy
841
Spiral
Easy
842
The prime factors
Easy
845
The card and envelope
Medium
847
Snake
Very easy
848
Perfect numbers
Easy
852
Long division on a short number
Very easy
854
Amicable numbers
Easy
858
Birthday
Very easy
860
The game of "Date"
Easy
861
Matrix Summation
Very easy
866
Computer Dialogue
Very easy
879
Plumbing
Easy
881
M777 Howitzer
Easy
883
Cricket field
Hard
887
Seeds
Very easy
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