How to Solve Minimum Window Substring Problem
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Minimum Window Substring
Given two strings s and t of lengths m and n respectively, return the minimum window substring of s such that every character in t (including duplicates) is included in the window. If there is no such...
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Understanding the Minimum Window Substring Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
Given two strings s and t of lengths m and n respectively, return the minimum window substring of s such that every character in t (including duplicates) is included in the window. If there is no such substring, return the empty string "". The testcases will be generated such that the answer is unique.
Minimum Window Substring
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Examples
s = "ADOBECODEBANC", t = "ABC""BANC"The minimum window substring "BANC" includes 'A', 'B', and 'C' from string t.
s = "a", t = "a""a"The entire string s is the minimum window.
s = "a", t = "aa"""Both 'a's from t must be included in the window. Since the largest window of s only has one 'a', return empty string.
Constraints
m == s.lengthn == t.length1 <= m, n <= 105s and t consist of uppercase and lowercase English letters.Follow up: Could you find an algorithm that runs in O(m + n) time?How Interview Coder Helps with Leetcode Problems
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