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摘要: Calculate the FunctionProblem's Link: http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3772Mean:略analyse:简单的线段树维护矩阵。矩阵乘法的结合律(a * b * c == ... 阅读全文
posted @ 2015-05-25 21:54 北岛知寒 阅读(189) 评论(0) 推荐(0)