Minimum Window Substring | Leetcode #76

This video explains a very important and most frequently asked programming interview question which is based on sliding window. This is about finding the minimum window substring which contains all the characters with respective frequencies in the window in another string.
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[@vignarajgnanaskanthan2462]

Time limit exceeded for 2 cases

[@AryakCbobey]

Thanks for your explanation. How is this (n+m). and how can you ignore the frequency mapper as the question doesn't ask you to ignore and for every match of the character it is invoked.

[@tommyshelby6277]

Legend is back with reinforcements, you saved my 6.006 course

[@MohammedHasmi577]

Sir ye konsa tab and app use kr rahe ho bata skte ho?

[@VivekSharma-yl9ki]

it's not O (m+n ) , it's O(m*n)