http://acm.hdu.edu.cn/showproblem.php?pid=5446 求C(n,m)%(p1p2…pk)的值,其中pi均为质数. 参考:https://www.cnblogs.com/linyujun/p/5199684.html 预备知识: 1.Lucas定理(图片来自百科):当p为素数时,有 2.中国剩余定理: 3.求逆元. 根据中国剩余定理可知,我们求C(n,m)%(p1p2…pk),实际就是在求解同余方程组: C(n,m)%p1=a1 C(n,m)%p2=a2 ……

>On the way to the next secret treasure hiding place, the mathematician discovered a cave unknown to the map. The mathematician entered the cave because it is there. Somewhere deep in the cave, she found a treasure chest with a combination lock and s…

Unknown Treasure Time Limit: 1500/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 2112    Accepted Submission(s): 771 Problem Description On the way to the next secret treasure hiding place, the mathematician…

题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=5446 Unknown Treasure 问题描述 On the way to the next secret treasure hiding place, the mathematician discovered a cave unknown to the map. The mathematician entered the cave because it is there. Somewhere…

Unknown Treasure Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5446 Description On the way to the next secret treasure hiding place, the mathematician discovered a cave unknown to the map. The mathematician ent…

Unknown Treasure Time Limit: 1500/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 2209    Accepted Submission(s): 821 Problem Description On the way to the next secret treasure hiding place, the mathematician…

Unknown Treasure Time Limit: 1500/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others) Problem Description On the way to the next secret treasure hiding place, the mathematician discovered a cave unknown to the map. The mathematician…

Unknown Treasure 参考链接 : https://www.cnblogs.com/linyujun/p/5199684.html 卢卡斯定理 : C(n, m) % p  =  C(n / p, m / p) * C(n%p, m%p) % p: 孙子定理 :https://blog.csdn.net/yskyskyer123/article/details/49032227 先用卢卡斯求出每个素数对大组合数的取模, 再用孙子定理将他们合并: #include<cstdio> t…

题目链接: Hdu 5446 Unknown Treasure 题目描述: 就是有n个苹果,要选出来m个,问有多少种选法?还有k个素数,p1,p2,p3,...pk,结果对lcm(p1,p2,p3.....,pk)取余. 解题思路: Lucas + 中国剩余定理,注意的是中国剩余定理的时候有可能会爆long long.然后用一个快速加法就好辣. #include <cstdio> #include <cstring> #include <iostream> #inclu…

Unknown Treasure Time Limit: 1500/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 721    Accepted Submission(s): 251 Problem Description On the way to the next secret treasure hiding place, the mathematician d…