string58. Length of Last Word

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

A word is a maximal
substring
consisting of non-space characters only.

Example 1:

Input: s = “Hello World”
Output: 5
Explanation: The last word is “World” with length 5.
Example 2:

Input: s = “ fly me to the moon “
Output: 4
Explanation: The last word is “moon” with length 4.
Example 3:

Input: s = “luffy is still joyboy”
Output: 6
Explanation: The last word is “joyboy” with length 6.

Constraints:

1 <= s.length <= 104
s consists of only English letters and spaces ‘ ‘.
There will be at least one word in s.

class Solution {
    public int lengthOfLastWord(String s) {
        int i=s.length()-1 , c=0;
        while(s.charAt(i)==' ') i--;

        for(; i>=0; i--){
            if(s.charAt(i)==' ') break;
            c++;
        }
        return c;
    }
}

/**
58. Length of Last Word
Solved
Easy
Topics
Companies
Given a string s consisting of words and spaces, return the length of the last word in the string.

A word is a maximal 
substring
 consisting of non-space characters only.

 

Example 1:

Input: s = "Hello World"
Output: 5
Explanation: The last word is "World" with length 5.
Example 2:

Input: s = "   fly me   to   the moon  "
Output: 4
Explanation: The last word is "moon" with length 4.
Example 3:

Input: s = "luffy is still joyboy"
Output: 6
Explanation: The last word is "joyboy" with length 6.

Constraints:

1 <= s.length <= 104
s consists of only English letters and spaces ' '.
There will be at least one word in s.

 */