资源简介
能求出任意两点间所有最短路径。数模时编写。考虑邻接矩阵中主对角线数据(虽然一般情况都取零)。更具实用性
代码片段和文件信息
function [sp spcost] = dijkstra_all(matriz_costo s d)
% This is an implementation of the dijkstra磗 algorithm wich finds the
% minimal cost path between two nodes. It磗 supoussed to solve the problem on
% possitive weighted instances.
% the inputs of the algorithm are:
%farthestNode: the farthest node to reach for each node after performing
% the routing;
% n: the number of nodes in the network;
% s: source node index;
% d: destination node index;
%For information about this algorithm visit:
%http://en.wikipedia.org/wiki/Dijkstra%27s_algorithm
%This implementatios is inspired by the Xiaodong Wang‘s implememtation of
%the dijkstra‘s algorithm available at
%http://www.mathworks.com/matlabcentral/fileexchange
%file ID 5550
%Author: Jorge Ignacio Barrera Alviar. April/2007
n=size(matriz_costo1);
S(1:n) = 0; %s vector set of visited vectors
dist(1:n) = inf; % it stores the shortest distance between the source node and any other node;
prev = zeros(50n); % Previous node informs about the best previous node known to reach each network node
count(1:n)=0;
dist(s) = 0;
while sum(S)~=n
candidate=[];
for i=1:n
if S(i)==0
candidate=[candidate dist(i)];
els
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