Minimum Window Substring
Given two strings, original
and check
, return the minimum substring of original
such
that each character in check
, including duplicates, are included in this substring. By
"minimum", I mean the shortest substring. If two substrings that satisfy the condition have
the same length, the one that comes lexicographically first is smaller.
Parameters
original
: The original string.check
: The string to check if a window contains it.
Result
- The smallest substring of
original
that satisfies the condition.
Examples
Example 1
Input: original = "cdbaebaecd"
, check = "abc"
Output: baec
Explanation: baec
is the shortest substring of original
that contains all of a
, b
, and c
.
Constraints
1 <= len(check), len(original) <= 10^5
original
andcheck
both contain only uppercase and lowercase characters in English. The characters are case sensitive.