lst-1016-godb.cpp
//#(execute) c++; compiler:g132; options:-O3 -std=c++23; libs:-
// https://godbolt.org/z/4j7njd763
#include <vector>
template<class T>
class MxStack {
public:
bool isEmpty() const;
void push(const T&);
void pop();
const T& top() const;
};