题目连接: https://vjudge.net/problem/HDU-6053 Description You are given an array A , and Zhu wants to know there are how many different array B satisfy the following conditions? 1≤Bi≤Ai For each pair( l , r ) (1≤l≤r≤n) , gcd(bl,bl+1...br)≥2 Input The first line is an integer T(1≤T≤10) descr...