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- function del_lidt(l,n)
- {
- var c1=-1,cur,prev;
- if(l==null){return;}
- while(l!=null){l=l.prec;}
- for(prev=l;prev!=null;prev=prev.succ)
- {
- c1++; if(c1>n)
- {
- for(cur=prev;cur!=null;cur=cur.succ)
- {
- cur.prec.succ=cur.succ;
- cur.succ.prec=cur.prec;
- }
- } return l;
- }
- }
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