ACboy needs your help again! hdu1702

來源:互聯網
上載者:User

#include<iostream>//完全類比隊列和棧
#include<string>
using namespace std;
const int MAX = 100005;

struct stack
{
 int top;
 int a[MAX];
}s;

struct queue
{
 int top;
 int base;
 int a[MAX];
}ss;
void push(int a)
{
 s.a[s.top++] = a;
}
void push1(int a)
{
 ss.a[ss.top++] = a;
}
//void top()
int main()
{
 int t, n, m, i;
 char str[5];
 char str1[5];
 cin>>t;
 while(t--)
 {
  cin>>n>>str1;
  ss.top = 0;
  ss.base = 0;
  s.top = 0;
  if(strcmp(str1, "FIFO") == 0)
  {
   for(i = 0; i < n; i++)
   {
    cin>>str;
    if(strcmp(str,"IN") == 0)
    {
     cin>>m;
     push1(m);

    }
    else
    {
     if(ss.top == ss.base)
      cout<<"None"<<endl;
     else
     {
         cout<<ss.a[ss.base]<<endl;
         ss.base++;
     }
    }
    

   }
  }
  else
  {
   for(i = 0 ; i < n ; i++)
   {
    cin>>str;
    if(strcmp(str,"IN") == 0)
    {
     cin>>m;
     push(m);
    }
    else
    {
     if(s.top == 0)
      cout<<"None"<<endl;
     else
     {
      cout<<s.a[s.top - 1]<<endl;
      s.top--;
     }
    }
   }
  }
 }

}

聯繫我們

該頁面正文內容均來源於網絡整理,並不代表阿里雲官方的觀點,該頁面所提到的產品和服務也與阿里云無關,如果該頁面內容對您造成了困擾,歡迎寫郵件給我們,收到郵件我們將在5個工作日內處理。

如果您發現本社區中有涉嫌抄襲的內容,歡迎發送郵件至: info-contact@alibabacloud.com 進行舉報並提供相關證據,工作人員會在 5 個工作天內聯絡您,一經查實,本站將立刻刪除涉嫌侵權內容。

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.