Longest Substring without Repeating Characters
Explore how to use the sliding window technique to find the longest substring without repeating characters in a string. Understand the problem constraints, apply a step-by-step approach, and implement your solution in a coding environment to build efficient string manipulation skills.
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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?
s = “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:
export function findLongestSubstring(str) {// Replace this placeholder return statement with your codereturn -1;}