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744. Find Smallest Letter Greater Than Target

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Description

Given a list of sorted characters letters containing only lowercase letters, and given a target letter target, find the smallest element in the list that is larger than the given target.

Letters also wrap around. For example, if the target is target = 'z' and letters = ['a', 'b'], the answer is 'a'.

Examples:

Input:

letters = ["c", "f", "j"]

target = "a"

Output: "c"



Input:

letters = ["c", "f", "j"]

target = "c"

Output: "f"



Input:

letters = ["c", "f", "j"]

target = "d"

Output: "f"



Input:

letters = ["c", "f", "j"]

target = "g"

Output: "j"



Input:

letters = ["c", "f", "j"]

target = "j"

Output: "c"



Input:

letters = ["c", "f", "j"]

target = "k"

Output: "c"

Note:

1. letters has a length in range [2, 10000].
2. letters consists of lowercase letters, and contains at least 2 unique letters.
3. target is a lowercase letter.

Solutions

Python3

Java

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