Length of Last Word LeetCode Solution

Problem: https://leetcode.com/problems/length-of-last-word/

Solution in C++ #

class Solution { public: int lengthOfLastWord(string s) { int len = s.length(); int count = 0, flag = 1;

    for(int i=len-1; i >= 0; i--) {
        if(s\[i\] == ' ' && flag) {
            continue; //skip the trailing whitespaces
        }
        
        if(isalpha(s\[i\])){
            count++;
            flag = 0;
            
            if(i-1 >= 0 && s\[i-1\] == ' ') {
                break;
            }
        }
    }
    return count;
}

};