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Problems

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Difficulty
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2242
Family Tree
Easy
2312
Height of the Tree
Easy
2313
Number of elements
Very easy
2314
Second Maximum
Very easy
2316
Print leaves
Very easy
2317
LCA offline (Easy)
Easy
2550
Not so trivial problem
Very hard
2556
Space competition
Hard
2636
Lambda-plant
Medium
2642
Octagons
Very hard
2759
Wealthy Family
Very easy
2857
MySpace
Easy
2923
Tree
Very easy
2924
Tree in a Segment
Easy
2950
Balanced tree
Medium
2963
Antitest
Medium
3030
Micro and Tree
Medium
3094
Quelling Blade
Very hard
3096
Binary Search Tree
Easy
3198
Pathological Paths
Medium
3275
Cactus of Vanya
Hard
3299
LCA - 2
Easy
3318
Enigmatic Device
Hard
3326
Building a Binary Search Tree
Hard
3329
Lightning Energy Report
Medium
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