The longest common substring problem is to find the longest string (or strings) that is a substring (or are substrings) of two or more strings.
The longest common substring of the strings ABABC
, BABCA
and
ABCBA
is string ABC
of length 3. Other common substrings are
A
, AB
, B
, BA
, BC
and C
.
ABABC
|||
BABCA
|||
ABCBA