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pais@kinetigram.com > S211_sameEnds
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APCS String 2, Problem 11. Given a string, return the longest substring that appears at both the beginning and end of the string without overlapping. For example, sameEnds("abXab") is "ab".


S211_sameEnds("abXYab") → "ab"
S211_sameEnds("xx") → "x"
S211_sameEnds("xxx") → "x"

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public String S211_sameEnds(String str) { }

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