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Problems

Graphs
Difficulty
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4137
Conservation
4138
Graphic Madness
Very hard
4140
Connection and Disconnection
Easy
4150
Balance it!
Easy
4155
Gregory the Grasshopper
Very easy
4159
Simon the Spider
Medium
4161
Legends and Myths of Southern Butovo
Very hard
4164
Suffix automaton
Medium
4171
Christmas Lights Assemby
Very easy
4173
Tree
Very hard
4185
Jedi Academy
Easy
4186
Save the kitten
Medium
4188
Strange City
Very hard
4202
Organization of Transportation
Very easy
4224
Equilateral Dominoes
Very hard
4226
Game Rigging
4227
Highway Construction
4235
Center of the tree
Very easy
4243
Repair
Very easy
4245
Terminator
Hard
4247
I Know the Winner
Very easy
4248
Tree
Very easy
4251
Maze Again
Easy
4257
17 chairs
Very hard
4273
Show Me the Money
Easy
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