#include <iostream> #include <vector> #include <stack> #include <string> using namespace std; int main() { stack<string, vector<string> > str_stack; string quote[3] ={"A","B","C" }; for (int i =0; i < 3; ++i) str_stack.push(quote[i]); while (!str_stack.empty()) { cout << str_stack.top(); str_stack.pop(); } }