2470_NumberofSubarraysWithLCMEqualtoK - a920604a/leetcode GitHub Wiki
class Solution {
public:
int subarrayLCM(vector<int>& nums, int k) {
unsigned int n= nums.size(), ret = 0;
for(int i=0;i<n;++i)
{
unsigned int t = nums[i];
for(int j=i;j<n;j++)
{
t= lcm(t, nums[j]);
if(t==k) ret++;
}
}
return ret;
}
};
- time complexity
O(n^2)
- space complexity
O(1)