You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: dijkstra.m
    path of file: ./repos/deep-photo-styletransfer/gen_laplacian/gaimc
    
    the code of the file until where you have to start completion: function [d pred]=dijkstra(A,u)
% DIJKSTRA Compute shortest paths using Dijkstra's algorithm
%
% d=dijkstra(A,u) computes the shortest path from vertex u to all nodes 
% reachable from vertex u using Dijkstra's algorithm for the problem.  
% The graph is given by the weighted sparse matrix A, where A(i,j) is 
% the distance between vertex i and j.  In the output vector d, 
% the entry d(v) is the minimum distance between vertex u and vertex v.
% A vertex w unreachable from u has d(w)=Inf.
%
% [d pred]=dijkstra(A,u) also returns the predecessor tree to generate 
% the actual shorest paths.  In the predecessor tree pred(v) is the 
% vertex preceeding v in the shortest path and pred(u)=0.  Any
% unreachable vertex has pred(w)=0 as well.  
%
% If your network is unweighted, then use bfs instead.
%
% See also BFS
%
% Example:
%   % Find the minimum travel time between Los Angeles (LAX) and

    
function [d pred]=dijkstra(A,u)
% DIJKSTRA Compute shortest paths using Dijkstra's algorithm
%
% d=dijkstra(A,u) computes the shortest path from vertex u to all nodes 
% reachable from vertex u using Dijkstra's algorithm for the problem.  
% The graph is given by the weighted sparse matrix A, where A(i,j) is 
% the distance between vertex i and j.  In the output vector d, 
% the entry d(v) is the minimum distance between vertex u and vertex v.
% A vertex w unreachable from u has d(w)=Inf.
%
% [d pred]=dijkstra(A,u) also returns the predecessor tree to generate 
% the actual shorest paths.  In the predecessor tree pred(v) is the 
% vertex preceeding v in the shortest path and pred(u)=0.  Any
% unreachable vertex has pred(w)=0 as well.  
%
% If your network is unweighted, then use bfs instead.
%
% See also BFS
%
% Example:
%   % Find the minimum travel time between Los Angeles (LAX) and
%   % Rochester Minnesota (RST).
%   load_gaimc_graph('airports')
%   A = -A; % fix funny encoding of airport data
%   lax=247; rst=355;
%   [d pred] = dijkstra(A,lax);
%   fprintf('Minimum time: %g\n',d(rst));
%   % Print the path
%   fprintf('Path:\n');
%   path =[]; u = rst; while (u ~= lax) path=[u path]; u=pred(u); end