clear;
tic
CityNum=30;
[dislist,Clist]=tsp(CityNum);
Tlist=zeros(CityNum);%禁忌表(tabu list)
cl=100;%保留前cl个最好候选解
bsf=Inf;
tl=50; %禁忌长度(tabu length)
l1=200;%候选解(candidate),不大于n*(n-1)/2(全部领域解个数)
S0=randperm(CityNum);
S=S0;
BSF=S0;
Si=zeros(l1,CityNum);
StopL=200; %终止步数
p=1;
clf;
figure(1);
while (p<StopL+1)
if l1>CityNum*(CityNum)/2
disp('候选解个数,不大于n*(n-1)/2(全部领域解个数)！ 系统自动退出！');
l1=(CityNum*(CityNum)/2)^.5;
break;
end
ArrS(p)=CalDist(dislist,S);
i=1;
A=zeros(l1,2);
while i<=l1
M=CityNum*rand(1,2);
M=ceil(M);
if M(1)~=M(2)
m1=max(M(1),M(2));m2=min(M(1),M(2));
A(i,1)=m1;A(i,2)=m2;
if i==1
isdel=0;
else
for j=1:i-1
if A(i,1)==A(j,1)&&A(i,2)==A(j,2)
isdel=1;
break;
else
isdel=0;
end
end
end
if ~isdel
i=i+1;
else
i=i;
end
else
i=i;
end
end
for i=1:l1
Si(i,:)=S;
Si(i,[A(i,1),A(i,2)])=S([A(i,2),A(i,1)]);
CCL(i,1)=i;
CCL(i,2)=CalDist(dislist,Si(i,:));
CCL(i,3)=S(A(i,1));
CCL(i,4)=S(A(i,2));
end
[fs fin]=sort(CCL(:,2));
for i=1:cl
CL(i,:)=CCL(fin(i),:);
end
if CL(1,2)<bsf %藐视准则(aspiration criterion)
bsf=CL(1,2);
S=Si(CL(1,1),:);
BSF=S;
for m=1:CityNum
for n=1:CityNum
if Tlist(m,n)~=0
Tlist(m,n)=Tlist(m,n)-1;
end
end
end
Tlist(CL(1,3),CL(1,4))=tl;
else
for i=1:cl
if Tlist(CL(i,3),CL(i,4))==0
S=Si(CL(i,1),:);
for m=1:CityNum
for n=1:CityNum
if Tlist(m,n)~=0
Tlist(m,n)=Tlist(m,n)-1;
end
end
end
Tlist(CL(i,3),CL(i,4))=tl;
break;
end
end
end
Arrbsf(p)=bsf;
drawTSP(Clist,BSF,bsf,p,0);
p=p+1;
end
BestShortcut=BSF
theMinDistance=bsf
figure(2);
plot(Arrbsf,'r'); hold on;
plot(ArrS,'b');grid;
title('搜索过程');
legend('最优解','当前解');
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