根据题目容易得到N%Mi=Mi-a. 那么可得N%Mi+a=Mi. 两侧同时对Mi取余,可得(N+a)%Mi=0. 将N+a看成一个变量,就可以把原问题转化成求Mi的LCM,最后减去a即可. #include<cstdio> #include<algorithm> #include<iostream> using namespace std; typedef long long ll; int K; ll a; int main(){ ll x; while(1){ c…
Chinese remainder theorem again Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1299 Accepted Submission(s): 481 Problem Description 我知道部分同学最近在看中国剩余定理,就这个定理本身,还是比较简单的:假设m1,m2,…,mk两两互素,则下面同余方程…
Biorhythms Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 111285 Accepted: 34638 Description Some people believe that there are three cycles in a person's life that start the day he or she is born. These three cycles are the physical,…
https://en.wikipedia.org/wiki/Chinese_remainder_theorem http://planetmath.org/ChineseRemainderTheorem Sunzi's original formulation: x ≡ 2 (mod 3) ≡ 3 (mod 5) ≡ 2 (mod 7) with the solution x = 23 + 105k where k ∈ ℤ…
1.欧几里得算法(辗转相除法) 直接上gcd和lcm代码. int gcd(int x,int y){ ?x:gcd(y,x%y); } int lcm(int x,int y){ return x*y/gcd(x,y); } 2.扩欧:exgcd:对于a,b,一定存在整数对(x,y)使ax+by=gcd(a,b)=d ,且a,b互质时,d=1. x,y可递归地求得. 我懒得改返回值类型了 long long exgcd(long long a,long long b,long long &x,…
F - Strange Way to Express Integers Time Limit:1000MS Memory Limit:131072KB 64bit IO Format:%I64d & %I64u Submit Status Description Elina is reading a book written by Rujia Liu, which introduces a strange way to express non-negative integers.…
Strange Way to Express Integers Time Limit: 1000MS Memory Limit: 131072K Total Submissions: 17877 Accepted: 6021 Description Elina is reading a book written by Rujia Liu, which introduces a strange way to express non-negative integers. The way is…