Class Solution
- java.lang.Object
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- g1801_1900.s1819_number_of_different_subsequences_gcds.Solution
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public class Solution extends Object
1819 - Number of Different Subsequences GCDs.Hard
You are given an array
nums
that consists of positive integers.The GCD of a sequence of numbers is defined as the greatest integer that divides all the numbers in the sequence evenly.
- For example, the GCD of the sequence
[4,6,16]
is2
.
A subsequence of an array is a sequence that can be formed by removing some elements (possibly none) of the array.
- For example,
[2,5,10]
is a subsequence of[1,2,1, **2** ,4,1, **5** , **10** ]
.
Return the number of different GCDs among all non-empty subsequences of
nums
.Example 1:
Input: nums = [6,10,3]
Output: 5
Explanation: The figure shows all the non-empty subsequences and their GCDs. The different GCDs are 6, 10, 3, 2, and 1.
Example 2:
Input: nums = [5,15,40,5,6]
Output: 7
Constraints:
1 <= nums.length <= 105
1 <= nums[i] <= 2 * 105
- For example, the GCD of the sequence
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Constructor Summary
Constructors Constructor Description Solution()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
countDifferentSubsequenceGCDs(int[] nums)
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