[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-08-06 UTC."],[],["The `PermutationIndexComparisonByArcHead` class in C++ is defined with a constructor, `PermutationIndexComparisonByArcHead`. This constructor takes one argument: `head`, a constant reference to a `ZVector` of `NodeIndexType`. The class's purpose, derived from its name, is to facilitate the comparison of permutation indices based on arc heads. This functionality is likely utilized within graph operations.\n"]]