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Problems

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Difficulty
Sort by
5347
Another task about trees
Very hard
5372
Bridges
Medium
5464
Republics
Hard
5485
Settlement
Hard
5506
Reverse grasshopper
Medium
5549
Tunnel Network Optimization
Very hard
5660
Up a Tree
Very hard
5839
Do use segment tree
Very hard
5845
Usoperanto
Hard
5941
Isomorphic Suffix Trees
Very hard
6057
Go Go Gorelians
Medium
6079
BSP Trees
Medium
6153
Sixth Sense
Very hard
6160
Thread Tree
Easy
6164
Optimal alpha beta pruning
Very hard
6399
Digital Content Protection
Hard
6422
Flying Safely
Easy
6455
Danger
Very easy
6466
Tree Distance
Medium
6552
Time to live
Medium
6604
Joining Couples
Very hard
6619
Frozen Rose-Heads
Medium
6786
Hidden Tree
Very hard
6849
Trees
Easy
6964
Delta Quadrant
Very hard
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