Class Solution
java.lang.Object
g2401_2500.s2447_number_of_subarrays_with_gcd_equal_to_k.Solution
public class Solution
extends java.lang.Object
2447 - Number of Subarrays With GCD Equal to K.
Medium
Given an integer array nums
and an integer k
, return the number of subarrays of nums
where the greatest common divisor of the subarray’s elements is k
.
A subarray is a contiguous non-empty sequence of elements within an array.
The greatest common divisor of an array is the largest integer that evenly divides all the array elements.
Example 1:
Input: nums = [9,3,1,2,6,3], k = 3
Output: 4
Explanation: The subarrays of nums where 3 is the greatest common divisor of all the subarray’s elements are:
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[9, 3 ,1,2,6,3]
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[9,3,1,2,6, 3 ]
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[ 9,3 ,1,2,6,3]
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[9,3,1,2, 6,3 ]
Example 2:
Input: nums = [4], k = 7
Output: 0
Explanation: There are no subarrays of nums where 7 is the greatest common divisor of all the subarray’s elements.
Constraints:
1 <= nums.length <= 1000
1 <= nums[i], k <= 109
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Constructor Summary
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Method Summary
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Constructor Details
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Solution
public Solution()
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Method Details
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subarrayGCD
public int subarrayGCD(int[] nums, int k)
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