The greatest common divisor GCD(a,b) of two positive integers a and b,sometimes written (a,b),is the largest divisor common to a and b,For example,(1,2)=1,(12,18)=6. (a,b) can be easily found by the Euclidean algorithm. Now Carp is considering a lit…
/* HDU5514 Frogs http://acm.hdu.edu.cn/showproblem.php?pid=5514 容斥原理 * * */ #include <cstdio> #include <cmath> #include <algorithm> //#define test using namespace std; const long long Nmax=1e5; long long n,m,a[Nmax]; long long book[Nmax]…
GCD Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1567 Accepted Submission(s): 751 Problem Description The greatest common divisor GCD(a,b) of two positive integers a and b,sometimes writte…
题目链接:传送门 题目需求:Given integers N and M, how many integer X satisfies 1<=X<=N and (X,N)>=M.(2<=N<=1000000000, 1<=M<=N), 题目解析: 求(X,N),不用想要分解N的因子,分解方法如下,我一开始直接分解for(int i=2;i<=n/2;i++),这样的话如果n==10^9,那么直接超时,因为这点失误直接浪费了一中午 的时间,要这么分解for(in…
GCD Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3559 Accepted Submission(s): 1921 Problem Description The greatest common divisor GCD(a,b) of two positive integers a and b,sometimes writt…
GCD Time Limit: / MS (Java/Others) Memory Limit: / K (Java/Others) Total Submission(s): Accepted Submission(s): Problem Description The greatest common divisor GCD(a,b) of two positive integers a and b,sometimes written (a,b),,)=,(,)=. (a,b) can be e…
Frogs Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 1509 Accepted Submission(s): 498 Problem Description to m−1 and the frogs are numbered from 1 to n. The i-th frog can jump over exactly …