Longest Common Substring Problem

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.

Example

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

References

• Wikipedia
• YouTube