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Difficulty
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11864
Non-Cat-Rinks
Very hard
11866
Gutabs and sequences
Hard
12199
Comeback
Very hard
12200
Clutch or kick
Very hard
12216
A Minecraft House
Very hard
12240
Powerful Task
Hard
12241
Alina and the Mountains
Very hard
12256
Permutation of Subarrays and Queries
Hard
12258
Alphabetic Graph
Very hard
12266
Good Host
Very hard
12333
Majestic Segments II
Very hard
12334
Miku's Concert
Very hard
12346
Sometimes it happens
Very hard
12370
Rectangular Fibonacci Spiral
Very hard
12371
Oh no, sorting
Very hard
12372
And again trees
Very hard
12427
Pitchers
Very hard
12439
Chopped Pairs
Very hard
12449
Teto's Emotions
Hard
12463
Bitwise Party
Hard
1
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