题解 | #CM5 基本字符串压缩#

class Zipper {
public:
    string zipString(string iniString) {
        // write code here
        int i = 0,pos;
        string ans = "";
        while(i < iniString.size()){
            ans += iniString[i];
            pos = iniString.find_first_not_of(iniString[i],i);
            if(pos < 0)
                ans += to_string(iniString.size() - i);
            else
                ans += to_string(pos - i);
            i = pos;
        }
        return ans.size() > iniString.size() ? iniString : ans;
    }
};