saadtaame / link-cut-tree Goto Github PK
View Code? Open in Web Editor NEWA C++ implementation of link-cut trees.
A C++ implementation of link-cut trees.
According to you implementation, I believe that the returned value of function int depth(Node *x)
is actually the weight of sub-tree rooted at x
, i.e., the number of nodes who are descendant of x
.
I don't think it's returning the depth of x
in the tree.
Hi,
Thanks for providing reference code for implement link-cut trees.
I wrote a small program (below) on top of what you've provided and I find it seg faults for cutting. I've also attached the input file which results in this situation.
The first number on each line is either 0 (add) or 1 (remove). The next two numbers are two vertices: either we add an edge incident to them or remove the edge incident to them.
Some edges are added/removed multiple times, but the program detects this by checking the vertices' roots.
Do you know why this happens?
traffic_stream.txt
program.txt
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