codeforces
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Unusual Product(codeforces)
Unusual ProductLittle Chris is a huge fan of linear algebra. This time he has been given a homework about the unusual square of a square matrix.The dot product of two integer number vectors x and原创 2014-04-08 06:45:12 · 894 阅读 · 0 评论 -
Toy Sum(codeforces)
Little Chris is very keen on his toy blocks. His teacher, however, wants Chris to solve more problems, so he decided to play a trick on Chris.There are exactly s blocks in Chris's set, each block ha原创 2014-04-09 19:11:37 · 920 阅读 · 0 评论 -
codeforces 459 (div 2) 题解
A 题目大意:原创 2014-08-23 23:40:03 · 644 阅读 · 0 评论
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