GCD Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 2742 Accepted Submission(s): 980 Problem Description Give you a sequence of N(N≤100,000) integers : a1,...,an(0<ai≤1000,000,000). There ar…
GCD is Funny 题目连接: http://acm.hdu.edu.cn/showproblem.php?pid=5902 Description Alex has invented a new game for fun. There are n integers at a board and he performs the following moves repeatedly: He chooses three numbers a, b and c written at the boa…
GCD and LCM Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=4497 Description Given two positive integers G and L, could you tell me how many solutions of (x, y, z) there are, satisfying that gcd(x, y, z) = G and…
先放知识点: 莫比乌斯反演 卢卡斯定理求组合数 乘法逆元 快速幂取模 GCD of Sequence Alice is playing a game with Bob. Alice shows N integers a 1, a 2, -, a N, and M, K. She says each integers 1 ≤ a i ≤ M. And now Alice wants to ask for each d = 1 to M, how many different sequences b…
Describtion In mathematics, the greatest common divisor (gcd) of two or more integers, when at least one of them is not zero, is the largest positive integer that divides the numbers without a remainder. For example, the GCD of 8 and 12 is 4.-Wikiped…
Describtion First we define: (1) lcm(a,b), the least common multiple of two integers a and b, is the smallest positive integer that is divisible by both a and b. for example, lcm(2,3)=6 and lcm(4,6)=12. (2) gcd(a,b), the greatest common divisor of tw…
题意:给定G,L,分别是三个数最大公因数和最小公倍数,问你能找出多少对. 析:数学题,当时就想错了,就没找出规律,思路是这样的. 首先G和L有公因数,就是G,所以就可以用L除以G,然后只要找从1-(n=L/G),即可,那么可以进行质因数分解,假设: n = p1^t1*p2^t2*p3^t3;那么x, y, z,除以G后一定是这样的. x = p1^i1*p2^i2*p3^i3; y = p1^j1*p2^j2*p3^j3; z = p1^k1*p2^k2*p3^k3; 那么我们可以知道,i1,…
GCD Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4272 Accepted Submission(s): 1492 Problem Description Given 5 integers: a, b, c, d, k, you're to find x in a...b, y in c...d that GCD(x, y)…
GCD Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4291 Accepted Submission(s): 1502 Problem Description Given 5 integers: a, b, c, d, k, you're to find x in a...b, y in c...d that GCD(x, y)…
GCD 题目连接: http://acm.hdu.edu.cn/showproblem.php?pid=1695 Description Given 5 integers: a, b, c, d, k, you're to find x in a...b, y in c...d that GCD(x, y) = k. GCD(x, y) means the greatest common divisor of x and y. Since the number of choices may be…
GCD/center> 题目连接: http://acm.hdu.edu.cn/showproblem.php?pid=5726 Description Give you a sequence of N(N≤100,000) integers : a1,...,an(0<ai≤1000,000,000). There are Q(Q≤100,000) queries. For each query l,r you have to calculate gcd(al,,al+1,...,ar) a…
GCD Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4141 Accepted Submission(s): 1441 Problem Description Given 5 integers: a, b, c, d, k, you're to find x in a...b, y in c...d that GCD(x, y)…
Robot 题目连接: http://acm.hdu.edu.cn/showproblem.php?pid=5673 Description There is a robot on the origin point of an axis.Every second, the robot can move right one unit length or do nothing.If the robot is on the right of origin point,it can also move…
任意门:http://acm.hdu.edu.cn/showproblem.php?pid=2588 GCD Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3608 Accepted Submission(s): 1954 Problem Description The greatest common divisor GCD(a,…
题链:http://acm.hdu.edu.cn/showproblem.php? pid=1722 Cake Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2620 Accepted Submission(s): 1364 Problem Description 一次生日Party可能有p人或者q人參加,现准备有一个大蛋糕.问…
传送门 GCD Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Problem DescriptionGive you a sequence of $N(N≤100,000)$ integers : $a_1,\cdots,a_n(0<a_i≤1000,000,000)$. There are $Q(Q≤100,000)$ queries. For each query $l…
GCD Array Time Limit: 11000/5500 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 843 Accepted Submission(s): 205 Problem Description Teacher Mai finds that many problems about arithmetic function can be reduced to…
Triangle 题目连接: http://acm.hdu.edu.cn/showproblem.php?pid=5914 Description Mr. Frog has n sticks, whose lengths are 1,2, 3⋯n respectively. Wallice is a bad man, so he does not want Mr. Frog to form a triangle with three of the sticks here. He decides…