void MergeList(SqList La,SqList Lb, SqList &Lc)
{
//归并操作
ElemType pa,*pb,*pc,*pa_last,*pb_last;
pa=La.elem;
pb=Lb.elem;
Lc.listsize=Lc.length=La.length+Lb.length;
pc=Lc.elem=(ElemType)malloc(Lc.listsize*sizeof(ElemType));
if(!Lc.elem)exit(OVERFLOW);
pa_last=La.elem+La.length-1;
pb_last=Lb.elem+Lb.length-1;
while(pa<=pa_last&&pb<=pb_last)
{
if(*pa<=*pb)
*pc++=*pa++;
else *pc++=*pb++;
}
while(pa<=pa_last)
pc++=*pa++;
while(pb<=pb_last)
*pc++=*pb++;}_
有大神能说一下这段代码什么意思么???
while(pa<=pa_last&&pb<=pb_last)
{
if(*pa<=*pb)
*pc++=*pa++;
else *pc++=*pb++;
}
while(pa<=pa_last)
pc++=*pa++;
while(pb<=pb_last)
*pc++=*pb++;}_