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Problems

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Difficulty
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11725
Two arrays
Medium
11726
Bernoulli scheme
Very easy
11728
Link-Cut Dumplings
Hard
11735
Pizzo Collectors
Very hard
11748
Flag performance
Very hard
11757
In-order
Very hard
11769
Guess the tree
Very hard
11774
XOR pairs
Hard
11784
Nuclear Reactor
Medium
11799
Apples
Hard
11801
Horned Froglet
Medium
11803
Fabric
Very hard
11808
Mex Partition
Very hard
11813
Simple Subsequence
Very hard
11824
Substrings
Medium
11836
Epic Coloring
Medium
11840
Tree Sum is Fun II
Very hard
11844
Kvantocryptarithm
Hard
11845
Countdown
Medium
11855
Doya and XOR
Medium
11867
Coloring the Paths at ADA University
Medium
12196
A plant
Easy
12197
Natus ad codicem
Medium
12208
Power Permutation
Medium
12214
Poor Miku
Hard
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