Package g0701_0800.s0744_find_smallest_letter_greater_than_target

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    744 - Find Smallest Letter Greater Than Target.

    Easy

    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.

    Example 1:

    Input: letters = "c","f","j", target = "a"

    Output: "c"

    Explanation: The smallest character that is lexicographically greater than 'a' in letters is 'c'.

    Example 2:

    Input: letters = "c","f","j", target = "c"

    Output: "f"

    Explanation: The smallest character that is lexicographically greater than 'c' in letters is 'f'.

    Example 3:

    Input: letters = "x","x","y","y", target = "z"

    Output: "x"

    Explanation: There are no characters in letters that is lexicographically greater than 'z' so we return letters0.

    Constraints:

    • <code>2 <= letters.length <= 10<sup>4</sup></code>

    • letters[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.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final Character nextGreatestLetter(CharArray letters, Character target)

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait