LeetCode-Length of Last Word

MaheswaraReddy
2 min readDec 28, 2022

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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.

Solution

class Solution:

def lengthOfLastWord(self, s: str) -> int:

cnt = 0

if len(s) > 0:

lst = list(s.split(“ “))

for i in range(1, len(lst)):

tmp = len(lst[-i])

cnt = i

if tmp != 0:

return tmp

if len(s) == 1:

return len(s)

else:

return len(lst[-(cnt+1)])

else:

return -1

The performance of my code is shown in the above picture.

Thanks for reading my solution. Appreciate your claps.

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