The goal is to test if a consecutive sequence is formed. A consecutive sequence is defined as sequence of incrementing numbers (e.g. 1, 2, 3 or 5, 6, 7, 8). The twist is that you have to consider the combination of vectors as shown.
{3 5 1 -5 } => {3+4 5+3 1+8 15-5} = {7 8 9 10} => true
{4 3 8 15}Also important is that the vectors can be of different sizes, where excess numbers in the longer one will be paired with 0s from the other one.
{2 2 2 } => {2+5 2+6 2+7 10+0} = {7 8 9 10} => true
{5 6 7 10}