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Problems

Graphs
Difficulty
Sort by
750
Home by trains
Very easy
754
Game with Chips
756
Villages
Very easy
761
Boa
Hard
776
Roads
777
Game
Medium
779
Message in the Enemy Territory
788
Chinese Ink
808
The Path Through the Mountains
Medium
814
Path Through the Mountains 2
Very hard
816
Races
Hard
820
Formula 1
Very hard
824
Gasoline
Easy
825
Game
Very hard
826
Furrows
Hard
868
Watershed
Very easy
898
Pawns
Medium
900
Travels in Reality
Hard
964
The incidence matrix
Very easy
970
Pair of points
Very hard
974
Floyd - 1
975
Floyd
Very easy
976
Floyd - existence
Easy
977
Is it a Tree?
Very easy
978
Get a tree
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