33分?
大佬求救
/*
* @Author: snake qzrobotsnake@gmail.com
* @Date: 2023-08-04 20:16:50
* @LastEditors: snake qzrobotsnake@gmail.com
* @LastEditTime: 2023-09-21 21:27:40
* @FilePath: \cppDemo\src\main.cpp
*/
#include <iostream>
using namespace std;
class Stack
{
public:
Stack(){};
Stack(int size);
~Stack();
void add(int x)
{
p_arr[++p_head] = x;
}
string pop()
{
if (p_head == 0)
return "Empty";
else
p_head--;
return "";
}
string query()
{
if (p_head == 0)
return "Anguei!";
else
return to_string(p_arr[p_head]);
}
int size() { return p_head; }
private:
unsigned long long *p_arr;
int p_head;
};
Stack::Stack(int size)
{
p_head = 0;
p_arr = new unsigned long long[size];
}
Stack::~Stack()
{
delete[] p_arr;
}
int main()
{
// freopen("test.out", "w", stdout);
cin.tie(0);
ios::sync_with_stdio(0);
int T;
cin >> T;
for (int i = 0; i < T; i++)
{
int n;
cin >> n;
Stack stack(n);
for (int i = 0; i < n; i++)
{
string str;
cin >> str;
if (str == "push")
{
int x;
cin >> x;
stack.add(x);
}
else if (str == "pop")
{
string pop = stack.pop();
cout << pop;
if (pop != "")
cout << endl;
}
else if (str == "query")
{
cout << stack.query() << endl;
}
else if (str == "size")
{
cout << stack.size() << endl;
}
}
}
return 0;
}