Lamine_Linrui @ 2024-12-07 12:30:58
#include<bits/stdc++.h>
#define IO ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
using namespace std;
int t,n,x;
string s;
int main(){
IO;
cin>>t;
while(t--){
stack<unsigned long long>sta;
cin>>n;
while(n--){
cin>>s;
//switch(s)
//{
if(s=="push"){
cin>>x;
sta.push(x);
}
//break;
if(s=="pop")
if(sta.empty())cout<<"Empty\n";
else sta.pop();
//break;
if(s=="query")
if(sta.empty())cout<<"Anguei!\n";
else cout<<sta.top()<<"\n";
//break;
if(s=="size")
cout<<sta.size()<<"\n";
//break;
//}
}
}
return 0;
}
by TLE_MLE_RE @ 2024-12-07 12:48:49
看下进食后人