Revenge of GCD In mathematics, the greatest common divisor (gcd), also known as the greatest common factor (gcf), highest common factor (hcf), or greatest common measure (gcm), of two or more integers (when at least one of them is not zero), is the l…
Revenge of GCD Problem Description In mathematics, the greatest common divisor (gcd), also known as the greatest common factor (gcf), highest common factor (hcf), or greatest common measure (gcm), of two or more integers (when at least one of them is…
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=5019 Problem Description In mathematics, the greatest common divisor (gcd), also known as the greatest common factor (gcf), highest common factor (hcf), or greatest common measure (gcm), of two or more i…
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=5019 题目意思:给出 X 和 Y,求出 第 K 个 X 和 Y 的最大公约数. 例如8 16,它们的公约数依次为1 2 4 8,那么第 3 个 GCD(X, Y) = 2,也就是从后往前数第3个公共因子. TLE思路:求出 X 的所有因子(从小到大开始存储),再从后往前枚举这些因子,检查是否也为 Y 的因子,统计到第 K 个数就是答案了......以为可以顺利通过,原来数据量还是非常大滴!!! 正确…
Description In mathematics, the greatest common divisor (gcd), also known as the greatest common factor (gcf), highest common factor (hcf), or greatest common measure (gcm), of two or more integers (when at least one of them is not zero), is the larg…
位运算.. .. Revenge of Nim II Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 229 Accepted Submission(s): 79 Problem Description Nim is a mathematical game of strategy in which two players take…
DP的时候记录下能否够从两个位置转移过来. ... Revenge of LIS II Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 393 Accepted Submission(s): 116 Problem Description In computer science, the longest increasing su…