WebNov 9, 2024 · CF1750D Count GCD 2024-11-09 题解 CF题面 洛谷题面 题意 有 T T 组数据。 给出两个整数 n,m n,m 和一个长度为 n n 的数组 a a ,满足 1\leq i\leq n,1\leq a_i\leq … WebD. Count GCD. You are given two integers n and m and an array a of n integers. For each 1 ≤ i ≤ n it holds that 1 ≤ a i ≤ m. Your task is to count the number of different arrays b of length n such that: gcd ( b 1, b 2, b 3,..., b i) = a i for each 1 ≤ i ≤ n. Here gcd ( a 1, a 2, …, a i) denotes the greatest common divisor (GCD) of ...
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