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: hungarian.m
    path of file: ./repos/bnt/KPMtools
    
    the code of the file until where you have to start completion: function [C,T]=hungarian(A)
%HUNGARIAN Solve the Assignment problem using the Hungarian method.
%
%[C,T]=hungarian(A)

    
function [C,T]=hungarian(A)
%HUNGARIAN Solve the Assignment problem using the Hungarian method.
%
%[C,T]=hungarian(A)
%A - a square cost matrix.
%C - the optimal assignment.
%T - the cost of the optimal assignment.

% Adapted from the FORTRAN IV code in Carpaneto and Toth, "Algorithm 548:
% Solution of the assignment problem [H]", ACM Transactions on
% Mathematical Software, 6(1):104-111, 1980.

% v1.0  96-06-14. Niclas Borlin, niclas@cs.umu.se.
%                 Department of Computing Science, Umeå University,
%                 Sweden. 
%                 All standard disclaimers apply.

% A substantial effort was put into this code. If you use it for a
% publication or otherwise, please include an acknowledgement or at least
% notify me by email. /Niclas

[m,n]=size(A);

if (m~=n)
    error('HUNGARIAN: Cost matrix must be square!');
end