ó |£*^c@sPdZddlmZdjddgƒZddgZd„Zed „Zd S( s ******** Matching ******** iÿÿÿÿ(trepeats sJoris van Rantwijks)Nicholas Mancuso (nick.mancuso@gmail.com)tmax_weight_matchingtmaximal_matchingcCs¥tgƒ}tgƒ}x†|jƒD]x\}}||f|kr%||f|kr%|j||fƒ|t|j|ƒƒO}|t|j|ƒƒO}q%q%W|S(sFind a maximal cardinality matching in the graph. A matching is a subset of edges in which no node occurs more than once. The cardinality of a matching is the number of matched edges. Parameters ---------- G : NetworkX graph Undirected graph Returns ------- matching : set A maximal matching of the graph. Notes ----- The algorithm greedily selects a maximal matching M of the graph G (i.e. no superset of M exists). It runs in `O(|E|)` time. (tsett edges_itertaddtedges(tGtmatchingRtutv((sp/home/gitlab-runner/builds/8480fa44/0/bergerc/fluidmanager-web/art-framework/bin/networkx/algorithms/matching.pyRs  $ c s5 ddd„ƒY‰dd‡fd†ƒY‰ˆjƒ‰ ˆ sBiSd}t}xˆjdtƒD]m\}}}|jddƒ}||kr£||kr£|}n|oËtt|ƒƒjd ƒddk}qaWi‰i‰i‰ttˆ ˆ ƒƒ‰ ttˆ t dƒƒƒ‰ ttˆ ˆ ƒƒ‰i‰ttˆ t |ƒƒƒ‰ i‰i‰g‰‡‡ fd †‰‡‡‡‡‡ ‡‡‡‡f d †‰‡‡‡ ‡‡‡fd†}‡‡‡‡‡‡ ‡ ‡‡‡‡‡f d†} ‡‡‡‡‡‡‡ ‡ ‡ ‡‡‡f d†‰ ‡‡‡‡ ‡fd†‰‡‡‡‡ ‡‡‡fd†} ‡‡‡ ‡ ‡ ‡‡fd†} x®ˆj ƒˆj ƒˆj ƒxˆD]} d| _ q˜Wˆj ƒgˆ(xFˆ D]>} | ˆkrÈjˆ | ƒdkrÈ| ddƒqÃqÃWd}xfxeˆru| ruˆj ƒ} ˆˆ | dksDt‚x+ˆj| ƒD]}|| krlqTnˆ | }ˆ |}||kr’qTn| |fˆkrãˆ| |ƒ}|dkrãtˆ| |f<ˆ|| fx!|jƒD] }|Vq,Wq |Vq WdS(N(Rt isinstancetleaves(tselfttR (R(sp/home/gitlab-runner/builds/8480fa44/0/bergerc/fluidmanager-web/art-framework/bin/networkx/algorithms/matching.pyRŒs  (R R Rt __slots__R((R(sp/home/gitlab-runner/builds/8480fa44/0/bergerc/fluidmanager-web/art-framework/bin/networkx/algorithms/matching.pyRzsitdatatweightit'tinttlongcs,ˆ|ˆ|dˆ||jddƒS(NiRi(tget(R tw(Rtdualvar(sp/home/gitlab-runner/builds/8480fa44/0/bergerc/fluidmanager-web/art-framework/bin/networkx/algorithms/matching.pytslackéscs ˆ|}ˆj|ƒdkr4ˆj|ƒdks:t‚|ˆ|<ˆ|<|dk rs||fˆ|<ˆ| " "   '%0\0_-!!-       %       $   ++. %   %              % N( Rt itertoolsRtjoint __author__t__all__RRhR(((sp/home/gitlab-runner/builds/8480fa44/0/bergerc/fluidmanager-web/art-framework/bin/networkx/algorithms/matching.pyts      !