Length of Last Word

Asked in:
Amazon

Problem Description

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.

Please make sure you try to solve this problem without using library functions. Make sure you only traverse the string once.

Problem Constraints

1 <= |A| <= 10⁶

Input Format

The first argument is a string A

Output Format

Return an integer denoting the length of the last word in the string.

Example Input

Input 1:

A = " hello world "

Input 2:

A = "InterviewBit"

Example Output

Output 1:

Output 2:

Example Explanation

Explanation 1:

"world" is the last word of size 5

Explanation 2:

"InterviewBit" is the last word of size 12

NOTE: You only need to implement the given function. Do not read input, instead use the arguments to the function. Do not print the output, instead return values as specified. Still have a question? Checkout Sample Codes for more details.

Start solving Length of Last Word on Interview Code Editor

Hints

Hint 1
Solution Approach
Complete Solution

Asked In:

Amazon

Length of Last Word

Discussion