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Diffstat (limited to 'count_subarr_score_less_k.py')
-rw-r--r-- | count_subarr_score_less_k.py | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/count_subarr_score_less_k.py b/count_subarr_score_less_k.py new file mode 100644 index 0000000..d60cb4b --- /dev/null +++ b/count_subarr_score_less_k.py @@ -0,0 +1,31 @@ +# 2302. Count Subarrays With Score Less Than K + +""" +the score of an array is defined as the product of its sum and its length. +given a positive integer array 'nums' and an integer 'k', return the number +of non-empty subarrays of 'nums' whose score is strictly less than 'k'. a +subarray is a contiguous sequence of elements within an array. +""" + + +class Solution(object): + def countSubarrays(self, nums, k): + """ + :type nums: List[int] + :type k: int + :rtype: int + """ + ans, curr, i = 0, 0, 0 + for j in range(len(nums)): + curr += nums[j] + while curr * (j - i + 1) >= k: + curr -= nums[i] + i += 1 + ans += j - i + 1 + return ans + + +if __name__ == "__main__": + obj = Solution() + print(obj.countSubarrays(nums=[2, 1, 4, 3, 5], k=10)) + print(obj.countSubarrays(nums=[1, 1, 1], k=5)) |