What is the primary difference between a substring and a subsequence of a string?
A substring and a subsequence are the same thing.
A substring is a contiguous portion of the string, while a subsequence can be obtained by deleting some or no characters from the string without changing the order of the remaining characters.
A substring is always smaller than the original string, while a subsequence can be larger.
A subsequence is a substring, but a substring is not a subsequence.
This question is part of this quiz :
Quiz on String for DSA