0434. Number of Segments in a String

https://leetcode.com/problems/number-of-segments-in-a-string

Description

You are given a string s, return the number of segments in the string.

A segment is defined to be a contiguous sequence of non-space characters.

Example 1:

**Input:** s = "Hello, my name is John"
**Output:** 5
**Explanation:** The five segments are ["Hello,", "my", "name", "is", "John"]

Example 2:

**Input:** s = "Hello"
**Output:** 1

Example 3:

**Input:** s = "love live! mu'sic forever"
**Output:** 4

Example 4:

**Input:** s = ""
**Output:** 0

Constraints:

• 0 <= s.length <= 300

• s consists of lower-case and upper-case English letters, digits or one of the following characters "!@#$%^&*()_+-=',.:".

• The only space character in s is ' '.

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