LeetCode : Number of Segments in a String

Count the number of segments in a string, where a segment is defined to be a contiguous sequence of non-space characters.

Please note that the string does not contain any non-printable characters.

Example:

Input: “Hello, my name is John”
Output: 5

class Solution {
public:
    int countSegments(string s) {
        vector<string>str;
        string stemp;
        stringstream ss;
        ss<<s;
        while(ss>>stemp)
        {
            str.push_back(stemp);
            stemp.clear();
        }
        return str.size();
    }
};