the score array define product sum lengthfor example score 1 2 3 4 5 1 2 3 4 5 5 75given positive integer array num integer k return number nonempty subarray num score strictly kA subarray contiguous sequence element array Example 1input num 21435 k 10Output 6explanationthe 6 subarray have score 10 2 score 2 1 2 1 score 1 1 1 4 score 4 1 4 3 score 3 1 3 5 score 5 1 5 21 score 2 1 2 6note subarray 14 435 consider score 10 36 respectively need score strictly 10example 2input num 111 k 5output 5ExplanationEvery subarray 111 score 5111 score 1 1 1 3 9 great 5thus 5 subarray have score 5 constraints1 numslength 1051 numsi 1051 k 1015