How to Solve Find Smallest Letter Greater Than Target Problem
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Find Smallest Letter Greater Than Target
You are given an array of characters letters that is sorted in non-decreasing order, and a character target. There are at least two different characters in letters. Return the smallest character in le...
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Understanding the Find Smallest Letter Greater Than Target Problem
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Problem Statement
You are given an array of characters letters that is sorted in non-decreasing order, and a character target. There are at least two different characters in letters. Return the smallest character in letters that is lexicographically greater than target. If such a character does not exist, return the first character in letters.
Find Smallest Letter Greater Than Target
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Examples
letters = ["c","f","j"], target = "a""c"The smallest character that is lexicographically greater than 'a' in letters is 'c'.
letters = ["c","f","j"], target = "c""f"The smallest character that is lexicographically greater than 'c' in letters is 'f'.
letters = ["x","x","y","y"], target = "z""x"There are no characters in letters that is lexicographically greater than 'z' so we return letters[0].
Constraints
2 <= letters.length <= 104letters[i] is a lowercase English letter.letters is sorted in non-decreasing order.letters contains at least two different characters.target is a lowercase English letter.How Interview Coder Helps with Leetcode Problems
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