Hello, I could not reproduce this bug using your code.
PriorityQueue bug: elements not moved down correctly
Thanks very much for reporting. I have fixed the issue on the master branch, please...
PriorityQueue: fix bug (wrong priority was taken)
make Utils class (some of its methods) more vis...
rename matching classes to reflect bipartiteness
rename matching class files
Isomorphism class (graph isomorphism heuristics...