A subsequence of a given sequence is a sequence that can be derived from the given sequence by deleting some or no elements without changing the order of the remaining elements.
For example, and are subsequences of
A subsequence of a given sequence is a sequence that can be derived from the given sequence by deleting some or no elements without changing the order of the remaining elements.
For example, (1,3,4) and (2,4,5) are subsequences of (1,2,3,4,5,6)