2 7 0 1 [Sword_Art_Online] 1 [Your_Lie_in_April] 2 [sakura_sou_no_pet_na_kanojo] 0 0 0 6 1 [Your_Lie_in_April] 1 [Your_Lie_in_April] 2 [Is_the_order_a_rabbit] 3 [Is_the_order_a_rabbit] 0 0
-1 sakura_sou_no_pet_na_kanojo Sword_Art_Online Your_Lie_in_April Your_Lie_in_April -1
虽然没学过c++ 。。
感觉应该和java差不多。。。
题意中因为要从队尾 队首加入 所以选用---------------------双端队列
为了判断是否看过某番 ,为了番名的唯一性----------------set容器
剩下的就是模拟了
#include <iostream>
#include <string.h>
#include <stdio.h>
#include <queue>
#include <set>
using namespace std;
int main()
{
set<string>s;
deque<string>q;
int ncase,n;
scanf("%d",&ncase);
while(ncase--)
{
s.clear();
while(!q.empty())
q.pop_back();
cin>>n;
for(int i=0;i<n;i++)
{
int x;
cin>>x;
if(x==0)
{
if(!q.empty())
{
string x1=q.front();q.pop_front();
if(s.find(x1)==s.end())
{
cout<<x1<<endl;
s.insert(x1);
}
else
{
cout<<-1<<endl;
}
}
else
{
cout<<-1<<endl;
}
}
if(x==1)
{
string x2;
cin>>x2;
q.push_back(x2.substr(1,x2.length()-2));
}
if(x==2)
{
string x2;
cin>>x2;
q.push_front(x2.substr(1,x2.length()-2));
}
if(x==3)
{
string x2;
cin>>x2;
x2=x2.substr(1,x2.length()-2);
int count=q.size();
while(count--)
{
string x3=q.front();q.pop_front();
if(x3.compare(x2)!=0)
{
q.push_back(x3);
}
}
}
}
}
return 0;
}补番计划 (长沙理工大学第十一届程序设计竞赛)(双端队列+set容器+string)
原文:http://blog.csdn.net/su20145104009/article/details/51170818