geeksforgeeks . org/count-集合的子集数-gcd-等于给定的数/给定一组正整数元素,求 GCDs 等于给定数的子集数。 例:Input: arr[] = {2, 3, 4}, gcd[] = {2, 3} Output: Number of subsets with gcd 2 is 2 Number of subsets with gcd 3 is 1 The two subsets with GCD equal to 2 are {...