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千万不要相信y<=0就不用判断了，如果你用y<=0会WA的，但用y<0没有关系。只要d<=0不用判断，以及y>d不用判断就可以AC了，当然加上y<0也没有关系，但是加上y<=0会WA掉的…… Followed by: Post your reply here: |
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