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434. Number of Segments in a String
Description
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
Constraints:
0 <= s.length <= 300sconsists of lowercase and uppercase English letters, digits, or one of the following characters"!@#$%^&*()_+-=',.:".- The only space character in
sis' '.
Solutions
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class Solution { public int countSegments(String s) { int ans = 0; for (int i = 0; i < s.length(); ++i) { if (s.charAt(i) != ' ' && (i == 0 || s.charAt(i - 1) == ' ')) { ++ans; } } return ans; } } -
class Solution { public: int countSegments(string s) { int ans = 0; for (int i = 0; i < s.size(); ++i) { if (s[i] != ' ' && (i == 0 || s[i - 1] == ' ')) { ++ans; } } return ans; } }; -
class Solution: def countSegments(self, s: str) -> int: ans = 0 for i, c in enumerate(s): if c != ' ' and (i == 0 or s[i - 1] == ' '): ans += 1 return ans -
func countSegments(s string) int { ans := 0 for i, c := range s { if c != ' ' && (i == 0 || s[i-1] == ' ') { ans++ } } return ans } -
class Solution { /** * @param String $s * @return Integer */ function countSegments($s) { $arr = explode(' ', $s); $cnt = 0; for ($i = 0; $i < count($arr); $i++) { if (strlen($arr[$i]) != 0) { $cnt++; } } return $cnt; } } -
function countSegments(s: string): number { return s.split(/\s+/).filter(Boolean).length; }