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Problems
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Problems

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Difficulty
Sort by
975
Floyd
Very easy
976
Floyd - existence
Easy
977
Is it a Tree?
Very easy
978
Get a tree
Very easy
981
Minimum spanning tree
Easy
982
Connectivity
Very easy
983
Tree Edges Coloring
Easy
984
Number of cycles
Medium
985
Scheduled Checking
Very hard
992
Cities and roads
Easy
993
Traffic lights
Very easy
994
Coloured rain
Easy
995
Triangular Route
Very easy
996
Path
Very easy
997
One knight
Medium
998
Table
Very easy
999
Two Horses
Very easy
1009
2D-Nim
Medium
1056
Trams
Easy
1057
Islands
Medium
1058
Avoid The Lakes
Very easy
1059
Fire Station
Medium
1060
Lines
Medium
1061
Three states
Easy
1062
Lines (2)
Medium
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