Problem: Minimum Window Substring

hard

40 min

Understand how to solve the minimum window substring problem using the sliding window technique. Learn to find the shortest substring in one string that contains all characters of another, optimizing for both frequency and window size. Practice implementing this essential pattern to improve your coding interview skills.

Statement

Given two strings, s and t, find the minimum window substring in s, which has the following properties:

It is the shortest substring of s that includes all of the characters present in t.
It must contain at least the same frequency of each character as in t.
The order of the characters does not matter here.

Note: If there are multiple valid minimum window substrings, return any one of them.

Constraints:

Strings s and t consist of uppercase and lowercase English characters.
1 $\leq$ s.length, t.length $\leq 10^3$

Problem: Minimum Window Substring

hard

40 min

Statement

Given two strings, s and t, find the minimum window substring in s, which has the following properties:

It is the shortest substring of s that includes all of the characters present in t.
It must contain at least the same frequency of each character as in t.
The order of the characters does not matter here.

Note: If there are multiple valid minimum window substrings, return any one of them.

Constraints:

Strings s and t consist of uppercase and lowercase English characters.
1 $\leq$ s.length, t.length $\leq 10^3$

Problem: Minimum Window Substring

Statement

Examples

Understand the problem

Figure it out!

Try it yourself

Problem: Minimum Window Substring

Statement

Examples

Understand the problem

Figure it out!

Try it yourself