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Re:判断一个数是不是2个数的平方和,只要从1枚举到n/2的开方 就可以了In Reply To:判断一个数是不是2个数的平方和,只要从1枚举到n/2的开方 就可以了 Posted by:407811696 at 2011-04-08 18:55:16 事实上题目告诉了你对于素数,这和mod4==1是等价的 Followed by: Post your reply here: |
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