摘要:
参考链接:http://blog.csdn.net/popoqqq/article/details/39891263http://blog.csdn.net/yerongsc/article/details/8768957需要转化一下:ans=C(n,w1)*C(n-w1,w2)*C(n-w1-w2... 阅读全文
摘要:
参考链接:http://baike.baidu.com/view/9970469.htmhttp://blog.csdn.net/popoqqq/article/details/39152381http://blog.csdn.net/eolv99/article/details/39644419约... 阅读全文
摘要:
参考:http://blog.csdn.net/popoqqq/article/details/39119649就是求欧拉函数,注意求1的欧拉函数时,这个题中需要时1,即(1,1)互素。#include#include#includeusing namespace std;long long int... 阅读全文