摘要: 每次把gcd(a,c)提到前面,直到a,c互质,然后就是普通BSGS了#include#include#include#include#include#define LL long longusing namespace std;struct hashtable{ s... 阅读全文
posted @ 2017-08-14 21:18 Ren_Ivan 阅读(133) 评论(0) 推荐(0)
摘要: BSGS算法,预处理出ϕ(c)−−−−√内的a的幂,每次再一块一块的往上找,转移时将b乘上逆元,哈希表里O(1)查询即可#include#include#include#include#include#include#define LL long longlong l... 阅读全文
posted @ 2017-08-14 10:43 Ren_Ivan 阅读(83) 评论(0) 推荐(0)
摘要: %%% dalao Orz ,筛素数到sqrt(n),分解ϕ(p),依次枚举判断就好了#include#include#include#include#include#define N 100000#define LL long longusing namespace... 阅读全文
posted @ 2017-08-14 08:44 Ren_Ivan 阅读(147) 评论(0) 推荐(0)