Assuming that a city has n districts, in order to realize the interconnection of power grids between n districts, the power grids between N districts in this city are constructed to minimize the total cost of the project. Please design a cost plan that meets the requirements.

Filename	Size	Update
MST	0	2018-12-23
MST\.idea	0	2018-12-23
MST\.idea\MST.iml	97	2018-08-14
MST\.idea\misc.xml	242	2018-08-14
MST\.idea\modules.xml	258	2018-08-14
MST\.idea\workspace.xml	41421	2018-08-14
MST\CMakeLists.txt	234	2018-08-14
MST\Graph.cpp	1719	2018-08-14
MST\Graph.h	1379	2018-08-14
MST\Mst	0	2018-12-23
MST\Mst\Kruskal.cpp	1084	2018-08-14
MST\Mst\Kruskal.h	984	2018-08-14
MST\Mst\Mst.cpp	857	2018-08-14
MST\Mst\Mst.h	752	2018-08-14
MST\Mst\Prim.cpp	1138	2018-08-14
MST\Mst\Prim.h	446	2018-08-14
MST\main.cpp	1584	2018-08-14
MST\readme.md	8858	2018-08-14
MST\testdata.txt	81	2018-08-14

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