upd

org/study_deck_02/dsa/sliding-window/0003-longest-substring-without-repeating-characters.org

@@ -47,13 +47,13 @@ Notice that the answer must be a substring, "pwke" is a subsequence and not a su
 Write your approach here.
 
 ** TODO Python
-#+begin_src python
+#+begin_src python :lc-problem 3 :lc-lang python3
 class Solution:
     def lengthOfLongestSubstring(self, s: str) -> int:
 #+end_src
 
 ** TODO C++
-#+begin_src cpp
+#+begin_src cpp :lc-problem 3
 class Solution {
 public:
     int lengthOfLongestSubstring(string s) {