2390. Removing Stars From a String

class Solution {
public:
    string removeStars(string s) {
        stack<char> st;

        for(int i = 0; i < s.length(); i++)
        {
            if(s[i] != '*')
            {
                st.push(s[i]);
            }
            else
            {
                st.pop();
            }
        }

        string ans;

        while(!st.empty())
        {
            ans.push_back(st.top());
            st.pop();
        }

        reverse(begin(ans), end(ans));

        return ans;
    }
};