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Problems

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Difficulty
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9876
Jurassic Jigsaw
9885
Harry the Hamster
Medium
10034
Virus detection
Easy
10048
Reverse the graph
Very easy
10049
Bitmap
10050
Longest path in a tree
Very easy
10056
Breadth First Search 0-1
Very easy
10058
Breadth First Search 0-1-2
Very easy
10060
Tree PostOrder Traversal
Easy
10082
Shortest even path
Very easy
10116
Almost shortest path
Easy
10122
Clock Tree
Very easy
10123
Timeline
10125
Delegation (Gold)
10151
Cow Contest
Very easy
10153
Telephone Lines
Easy
10157
Transitive closure
10160
Number of pairs
Easy
10161
IOI
Medium
10163
Digital Tree
Easy
10164
Kozak Vus and the Holiday
Hard
10171
Degrees of separation
10172
Vertex
Very easy
10202
Tourist Huseyn
Hard
10205
Highways
Easy
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