Given a string, find the length of the longest substring without repeating characters. # For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the length is 3. # ...

To start writing and running Python programs locally on your device, you must have Python installed and an IDE (Integrated ...

To check the length of a string use the len() method. In Python and other programming languages \ followed by a character is an escape sequence. Let us see the most common escape characters: \n: new ...