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对w升序，w相等时对h降序,理由见内要使用dilworth定理，必须使得集合满足偏序关系，如果是按h升序，那么就不满足“出现在前面且小于它”这个偏序关系了，就不能运用该定理了，即使在程序里加入了控制语句也还是WA Followed by:
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