#include·<iostream>
#include·<string>
#include<stack>
#include·<sstream>
#include·<vector>
using·namespace·std;
class·Solution·{
··public:
····int·calPoints(vector·<·string·>·ops)·{
//write·code·here
······return·0;
····}
};
/**
R·E·A·D·M·E
DO·NOT·CHANGE·the·code·below,·we·use·it·to·grade·your·submission.·If·changed·your·submission·will·be·failed·automatically.
**/