#1313Medium#16 in SAP's list· asked at 30 companies
Minimum Window Substring
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What we know
Example 1
Input: s = "ADOBECODEBANC", t = "ABC" Output: "BANC"
Example 2
Input: s = "a", t = "a" Output: "a"
Example 3
Input: s = "a", t = "aa" Output: ""
Both 'a's from t must be in the window; s has only one.
Constraints
- •
m == s.length - •
n == t.length - •
1 <= m, n <= 10^5 - •
sandtconsist of uppercase and lowercase English letters.