function f=mymin(x,high)
load tempdata
adj=adj~=0;
n=length(x);
leftnodes=sum(adj(x,:))>0;
for i=1:n
     leftnodes(x(i))=0;
end
leftnodes
n=sum(leftnodes);
for i=1:15
    if (leftnodes(i)~=0)&(sum(i==x)~=1)
        ld(n)=i;
        n=n-1;
    end
end
h=min(data(ld,1))+1.2;
if high>h
    disp('high is too longe,You must input number smaller');
    return
end
a=5