Revenge of GCD//HDU - 5019//数论
Revenge of GCD//HDU - 5019//数论 题目 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 largest positive integer that divides the numbers without a remainder. —Wikipedia Today, GCD takes revenge on you. You have to figure out the k-th GCD of X and Y. Input The first line contains a single integer T, indicating the number of test cases. Each test case only contains three integers X, Y and K. [Technical Specification]