Length of Last Word LeetCode Solution

Here, We see Length of Last Word LeetCode Solution. This Leetcode problem is done in many programming languages like C++, Java, JavaScript, Python, etc. with different approaches.

List of all LeetCode Solution

Problem Statement

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.
```

Length of Last Word Leetcode Solution C++

``````class Solution {
public:
int lengthOfLastWord(string s) {
int A = 0;
for (int i=s.size()-1; i>=0; --i) {
if (s[i] != ' ') ++A;
else if (A) return A;
}
return A;
}
};```Code language: PHP (php)```

Length of Last Word Leetcode Solution Java

``````class Solution {
public int lengthOfLastWord(String s) {
int length = 0;
for (int i = s.length() - 1; i >= 0; i--) {
if (s.charAt(i) != ' ') {
length++;
} else {
if (length > 0) return length;
}
}
return length;
}
}```Code language: JavaScript (javascript)```

Length of Last Word Leetcode Solution JavaScript

``````var lengthOfLastWord = function(s) {
let trimmedString = s.trim();
return trimmedString.length - trimmedString.lastIndexOf(' ') - 1;
};```Code language: JavaScript (javascript)```

Length of Last Word Leetcode Solution Python

``````class Solution(object):
def lengthOfLastWord(self, s):
s = s.strip()       # Remove the spaces at the beginning and end
length = 0
for i in range(len(s)):
if s[i] == " ":
length = 0
else:
length += 1    # Inside one word
return length
``````
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