Description

Submission

class Solution {
public:
    string replaceSpace(string s) {
        stringstream ss;

        for(int i = 0; i < s.length(); ++i) {
            if(s[i] == ' ') {
                ss << "%20";
            } else {
                ss << s[i];
            }
        }

        return ss.str();
    }
};