4 5 12 23 23 37 27 41 53
No.
The pair starting with 37 is out of order.
Recall that an algorithm is a systematic procedure to perform an operation on data. Here is an algorithm that determines if a list is in order.
For each pair of integers starting at the left: if any pair is out of order, the list is not in order
If one pair is out of order the entire list is out of order.
Is the pair 23 23 out of order?