The algorithm: Initialize left = , maxLen = , seen = empty set For each right position: - While s[right] is in seen, remove s[left] and move left forward - Add s[right] to seen - Update maxLen = max(maxLen, right - left + ) Return maxLen The window always contains unique characters. Each character is added and removed at most once.
##### ###### ##### ### # # ### # # ###### ## ## ## ## ## ## ## # # # # # ## ##### #### ##### # # # # # # # #### ## # ## ## ## ## # # # # # ## ## # ###### ## ### # ### # ######
$ curl repovive.com/roadmaps/maang-interview-prep/two-pointers-sliding-window/longest-substring-without-repeating-solution
░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████