http://bbs.freekaoyan.com/viewthread.php?tid=231320
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E->V
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if(a and b or x < 10) while (f[i 1,j]<100)f[i 1,j]=f[i 1,j] 1;else x=x 1;
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s->next = p->next;
p->next = s;
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s->next = l;
l=s;
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while (p->next != NULL) p = p->next;
q=p;
while (p->next != q) p = p->next;
s->next = p->next;
p->next = s;
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