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Problems

Topics
Difficulty
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3925
Intersection
Hard
3926
Cube
Very easy
3927
Economy
Very easy
3928
Fence
Very hard
3929
Schedule
Very easy
3930
Hotel
Medium
3931
Iguana
Hard
3932
Tournament
Medium
3933
Dunno
Easy
3934
Legion
Very easy
3935
Reverse
Very easy
3936
Towers of Hanoi
Easy
3937
Digital root
Very easy
3939
Ariel
Medium
3941
Cinderella
Medium
3942
Darkwing Duck
Very hard
3943
Epic Fail of a Genie
Hard
3944
Flood
Very hard
3945
Gadget Hackwrench
Very easy
3946
Hunt for Treasure!
Very hard
3947
Innovative Business
Medium
3949
Key to Magica`s diary
Medium
3950
Subsets
Easy
3951
Statues on the Bridge
Easy
3952
All binary numbers of length n that contain k 1s
Very easy
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  • 146
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  • 366