Leetcode Length of Last Word
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(const char *s) { int len = strlen(s), cnt = 0; bool flag = false; for(int i = len-1; i >= 0 ; --i){ if(s[i]!=' ') {flag =true;cnt++;} else if(flag) break; } return cnt; } };