Leetcode58-Length of Last Word(P

58. Length of Last Word

Given a stringsconsists of upper/lower-case alphabets and empty space characters' ', return the length of last word in the string.

If the last word does not exist, return 0.

Note:A word is defined as a character sequence consists of non-space characters only.

For example,

Givens="Hello World",

return5.

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