List

#include<cstdio>
#include<iostream>
#include<list>
using namespace std;

int main()
{
    list<int>l;         //创建一个空的list
    l.assign(4,3);      //分配值
    list<int>L1;
    L1=l;
    cout<<l.front()<<endl;
    cout<<l.back()<<endl;
    list<int>::iterator ptr;
    for(ptr=l.begin();ptr!=l.end();++ptr)
    {
        cout<<*ptr<<" ";
    }
    cout<<endl;
    l.pop_back();
    l.pop_front();
    l.push_back(2);
    l.push_front(1);
    l.erase(l.begin());   //删除该地址的元素
    l.remove(3);          //remove，把是3的全部删除
    for(ptr=l.begin();ptr!=l.end();++ptr)
    {
        cout<<*ptr<<" ";
    }
    cout<<endl;
    for(int i=0;i<5;i++)
    {
        l.push_back(i);
    }
    l.sort();
    for(ptr=l.begin();ptr!=l.end();++ptr)
    {
        cout<<*ptr<<" ";
    }
    cout<<endl;
    l.sort(greater<int>());
    for(ptr=l.begin();ptr!=l.end();++ptr)
    {
        cout<<*ptr<<" ";
    }
    cout<<endl;
    list<int>l1(5,2);
    for(ptr=l1.begin();ptr!=l1.end();++ptr)
    {
        cout<<*ptr<<" ";
    }
    cout<<endl;
    l1.merge(l,greater<int>());
    for(ptr=l1.begin();ptr!=l1.end();++ptr)
    {
        cout<<*ptr<<" ";
    }
    l1.swap(l);
    return 0;
}