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Problems

Graphs
Difficulty
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9582
Cactus Revenge
Medium
9585
Foolpruf Security
Easy
9601
Wormhole Sort
Very easy
9608
Taxi
Very easy
9613
Forest Fires
Medium
9621
Alpine valley
Medium
9635
Transport system
Very easy
9654
Depth first search on a disconnected graph
9674
Ingredients
Very easy
9702
Environment-Friendly Travel
9708
Swapping Places
9761
Bob in Wonderland
Very easy
9772
Chess Tournament
9781
God saves the man who saves himself!
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
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