Length of Last Word

Challenge Points: 10

Level: Easy

Given a string s containing words and spaces, return the length of the last word.

A word is defined as the longest sequence of non-space characters.

Input: s = "Wscube tech"

Output: 4

Explanation:

The last word is "tech", which has length 4.

Input: s = " upskilling bharat"

Output: 6

Explanation:

The last word is "bharat", which has length 6.

Input: s = " learn to code "

Output: 4

Explanation:

The last word is "code", which has length 4.

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