Tang15387021810 @ 2024-12-15 14:43:48
原题传送门
#include<iostream>
#include<cstdio>
#include<stack>
#include<string>
using namespace std;
long long t,n,x;
string s1;
stack<unsigned long long int> s;
int main()
{
cin>>t;
for(int i=1;i<=t;i++)
{
cin>>n;
for(int j=1;j<=n;j++)
{
cin>>s1;
if(s1=="push")
{
cin>>x;
s.push(x);
}
if(s1=="pop")
{
if(!s.empty()) s.pop();
else cout<<"Empty"<<endl;
}
if(s1=="query")
{
if(!s.empty()) cout<<s.top()<<endl;
else cout<<"Anguei!"<<endl;
}
if(s1=="size") cout<<s.size()<<endl;
}
}
while(!s.empty()) s.pop();
return 0;
}
by leoljx @ 2024-12-15 14:52:31
把变量x的类型设成ull
by Rigil_Kent @ 2024-12-15 14:56:53
倒数第
by Tang15387021810 @ 2024-12-15 14:58:48
@Rigil_Kent谢谢!!!!!
by Tang15387021810 @ 2024-12-15 14:59:18
@Rigil_Kent已过