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Python Graph.edge[u][v]['flow']方法代码示例

本文整理汇总了Python中networkx.Graph.edge[u][v]['flow']方法的典型用法代码示例。如果您正苦于以下问题:Python Graph.edge[u][v]['flow']方法的具体用法?Python Graph.edge[u][v]['flow']怎么用?Python Graph.edge[u][v]['flow']使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在networkx.Graph的用法示例。


在下文中一共展示了Graph.edge[u][v]['flow']方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: edmondskarp

# 需要导入模块: from networkx import Graph [as 别名]
# 或者: from networkx.Graph import edge[u][v]['flow'] [as 别名]
def edmondskarp(G: nx.Graph, s, t):

    RG = G.copy()

    for u,v in G.edges_iter():
        G.edge[u][v]['flow'] = 0

    path = isthereapath(RG,s,t)
    while len(path) > 0:
        path_cp = min([RG.edge[u][v]['capacity'] for u,v in path])
        for u,v in path:
            if G.has_edge(u,v):
                G.edge[u][v]['flow'] += path_cp
                RG.edge[u][v]['capacity'] -= path_cp
                if RG.edge[u][v]['capacity'] == 0:
                    RG.remove_edge(u,v)

                if RG.has_edge(v,u):
                    RG.edge[v][u]['capacity'] += path_cp
                else:
                    RG.add_edge(v,u,capacity=path_cp)
            else:
                # then this edge is a "cancelling" flow
                # residue should go up and cancelling "capacity" should go down
                G.edge[v][u]['flow'] -= path_cp
                RG.edge[v][u]['capacity'] += path_cp
                RG.edge[u][v]['capacity'] -= path_cp
                if RG.edge[u][v]['capacity'] == 0:
                    RG.remove_edge(u,v)
        path = isthereapath(RG,s,t)

    return RG
开发者ID:makslevental,项目名称:clrs,代码行数:34,代码来源:flownetworks.py


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