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Problems

Topics
Difficulty
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4028
Guards
Easy
4029
Hip To Be Square
Easy
4030
Idol
Very easy
4031
Joint Venture
Easy
4032
Key Insight
4033
Tram
Very easy
4034
Minimum and Maximum in a tree
Easy
4035
Ice-Cream
4036
Pre-Order Traversal of a Tree
Very easy
4037
Merge Sort
Easy
4038
Post-Order Traversal of a Tree
Very easy
4039
Heap it!
Very easy
4040
Factor Trees
Very easy
4041
Commercial Calculator
Easy
4042
Median of Unions
Medium
4043
Roses
Hard
4044
N Queens
Medium
4045
Brackets
Very hard
4046
Mobile
Very hard
4047
Peaks
4048
Fireworks in RightAngleles
Very hard
4049
Melody
Very hard
4050
Strategic Game
Easy
4051
Grasshopper
Very easy
4052
Traffic Rules at LKS
Very easy
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