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终于a了，泪流满面呀刚看题，以为是筛法打素数表，空间耗费极大，速率很低，一直tle，后来改判断素数，就是没弄明白什么事odd number wa无数次，找到之后打表判断……又wa无数次，后来急眼了了，之间判断，因为个等号又wa无数次，本题坎坷呀…… Followed by: Post your reply here: |
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