54. Length of Last Word

EasyString

Given a string s consisting of words and spaces, return the length of the last word in the string. A word is a maximal substring consisting of non-space characters only.

Examples

Input: Hello World

Output: 5

Explanation: The last word is 'World', length 5.

Constraints

1 <= s.length <= 10^4
s consists of only English letters and spaces ' '.
There will be at least one word in s.

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