Longest Substring Without Repeating Characters Leetcode | Sliding window algorithm | Python Telugu

[@ganeshjaggineni4097]

NICE SUPER EXCELLENT MOTIVATED

[@techwithsaketh]

Thanks a lot 😊

[@python-developer521]

what is the use of set1.remove(s[l]) ? set wont allow duplicates right

[@techwithsaketh]

we are not removing s[r] we are trying to remove all characters in the window till we remove s[r].By doing that we can create a new window and start checking the longest substring.