Longest Substring without Repeating Characters
Explore how to apply the sliding window technique to find the longest substring without repeating characters. This lesson helps you build efficient solutions for substring problems, enhancing your coding interview skills by focusing on pattern recognition and problem-solving strategy.
We'll cover the following...
Statement
Given a string, str, return the length of the longest substring without repeating characters.
Constraints:
-
str.length strconsists of English letters, digits, and spaces.
Examples
Understand the problem
Let’s take a moment to make sure you’ve correctly understood the problem. The quiz below helps us to check if you’re solving the correct problem:
Longest Substring Without Repeating Characters
What should be the output if the following string is given as an input?
str = “conceptoftheday”
8
6
5
13
Figure it out!
We have a game for you to play. Rearrange the logical building blocks to develop a clearer understanding of how to solve this problem.
Try it yourself
Implement your solution in the following coding playground:
int FindLongestSubstring(string str){// Replace this placeholder return statement with your codereturn -1;}