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Problems

Topics
Difficulty
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3953
License plates
Very easy
3966
Ardent Butterfly Collector
Easy
3967
Ropes
Very easy
3968
Square root
Very easy
3969
Diplomas
Very easy
3970
Mutants
Easy
3971
CosmoCraft
Easy
3972
Covered Walkway
Easy
3973
Double Dealing
Medium
3974
The End of the World
Hard
3975
Estimation
Hard
3976
Juggler
Hard
3977
Red/Blue Spanning Tree
Hard
3978
The Red Gem
Hard
3979
Science!
Very hard
3980
The Worm in the Apple
Hard
3981
From adjacency matrix to adjacency list
Very easy
3982
From adjacency list to adjacency matrix
Very easy
3983
Mancunian And Colored Tree
Very easy
3984
Sum of Squares with Segment Tree
Very easy
3985
Half-degrees of vertices
Very easy
3986
Sources and sinks
Very easy
3987
Complete graph
Very easy
3988
Transitivity of a graph
Easy
3989
Hanoi tower
Very easy
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