MS 1069. Remove Comments

Code(Language:C++) (Judger:cloudjudge-cluster-6)

class Solution {
public:
    /**
     * @param source: List[str]
     * @return: return List[str]
     */
    vector<string> removeComments(vector<string> &source) {
        // write your code here
        vector<string> res;
        bool blocked = false;
        string out = "";
        for (string line : source) {
            for (int i = 0; i < line.size(); ++i) {
                if (!blocked) { //区分是否 blocked，即是否在/*里面
                    if (i == line.size() - 1) {
                        out += line[i];
                    }
                    else {
                        string t = line.substr(i, 2);
                        if (t == "/*") {
                           blocked = true;
                           ++i;
                        }
                        else if (t == "//") break;
                        else {
                            out += line[i];
                        }
                    }
                } 
                else {
                    if (i < line.size() - 1) {
                        string t = line.substr(i, 2);
                        if (t == "*/") {
                            blocked = false, ++i;
                        }
                    }
                }
            }
            if (!out.empty() && !blocked) {
                res.push_back(out);
                out = "";
            }
        }
        return res;
    }
};