[Leetcode]58. Length of Last Word
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Given a string s consists 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,
Given s = "Hello World"
,
return 5
.
class Solution {public: int lengthOfLastWord(string s) { auto first = find_if(s.rbegin(), s.rend(), ::isalpha); auto last = find_if_not(first, s.rend(), ::isalpha); return distance(first, last); }};
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