// For a balanced substring with one char, any length works (all chars are equal) maxlen = Math.max(maxlen, getLength(s, 'a')); // Consider 'b' and 'c' maxlen = Math ...
Given two strings s and t, return the minimum window substring of s such that every character in t (including duplicates) is included in the window. If no such substring exists, return "". "BANC" is ...
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