冰天雪地跪求顺序表的合并程序，高手来指教啊！！！
帮忙啊
void MergeList(List *La,List *Lb,List *Lc) {
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(Less_EqualList(pa,pb)) *pc++=*pa++;
else *pc++=*pb++;
}
while(pa<=pa_last) *pc++=*pa++;
while(pb<=pb_last) *pc++=*pb++;
}
初来驾到还请多多包涵嘛