easy and best solution in c++
IntuitionApproachComplexity
Time complexity:

Space complexity:
Code
# Intuition
<!-- Describe your first thoughts on how to solve this problem. -->

# Approach
<!-- Describe your approach to solving the problem. -->

# Complexity
- Time complexity:
<!-- Add your time complexity here, e.g. $$O(n)$$ -->

- Space complexity:
<!-- Add your space complexity here, e.g. $$O(n)$$ -->

# Code
```cpp []
class Solution {
public:
    int numberOfPairs(vector<int>& nums1, vector<int>& nums2, int k) {
        int ans=0;
        for(int i=0;i<nums1.size();i++)
        {
            for(int j=0;j<nums2.size();j++)
            {
                if(nums1[i]%(k*nums2[j])==0) ans++;
            }
        }
        return ans;
    }
};
```
['C++']