👉 In computer science, a subastring is a sequence of characters that are contiguous within another string. A subastring can be either a single character or a substring of length 1. Subastrings are useful in programming because they simplify data access and allow for efficient searches. For example, consider the strings "abc", "def", and "ghi". In this case, the subastring "abc" is a contiguous sequence that contains only one character (the letter 'a') and
