String window question

#1

can u please tell me the simplest approach regarding this questions
i am not able to solve it properly

#2

hello @asaraf2407
please refer this -> https://leetcode.com/problems/minimum-window-substring/solution/

#3

thanks a lot @aman yadav

#4

I hope I’ve cleared your doubt. I ask you to please rate your experience here
Your feedback is very important. It helps us improve our platform and hence provide you
the learning experience you deserve.

On the off chance, you still have some questions or not find the answers satisfactory, you may reopen
the doubt.