Task description doesn’t specify that subsequence should not be empty.

If so shouldn’t empty subsequence count as valid for test A: [ 1 ], B: 0, C: 0 ?

# Empty subsequence

**bani**#1

**j_s_r_r806**#2

According to the problem **Continuous subsequence is defined as all the numbers A[i], A[i + 1], … A[j]
where 0 <= i <= j < size(A)** because of range of i and j you will never get any empty subsequence

**bani**#3

Right my bad. Usually range is open at the end.

I need to read problem descriptions more carefully