434. Number of Segments in a String
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' '
.
Rust Solution
struct Solution;
impl Solution {
fn count_segments(s: String) -> i32 {
s.split_whitespace().count() as i32
}
}
#[test]
fn test() {
let s = "Hello, my name is John".to_string();
assert_eq!(Solution::count_segments(s), 5);
}
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