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Problems

Graphs
Difficulty
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979
Frame-workout 1
980
Frame-workout 2
981
Minimum spanning tree
982
Connectivity
Very easy
983
Tree Edges Coloring
Easy
984
Number of cycles
Medium
985
Scheduled Checking
Very hard
992
Cities and roads
993
Traffic lights
994
Coloured rain
995
Irony
Very easy
996
Path
Very easy
997
One knight
Very easy
998
Sign
Very easy
999
Two Horses
Very easy
1056
Trams
Easy
1057
Islands
Medium
1058
Avoid The Lakes
Very easy
1059
Fire Station
Medium
1060
Lines
Very easy
1061
Three states
Easy
1062
Lines (2)
Very easy
1063
Cell removal
1064
The way a Knight
Very easy
1065
Garden beds
  • 1
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  • 5
  • 6
  • 7
  • …
  • 55