C++ list

#include <iostream>  
#include <list>  
#include <numeric> 
#include <algorithm>   
using namespace std;   
  
typedef list<int> LISTINT;   //创建一个list容器的实例LISTINT
typedef list<int> LISTCHAR;  //创建一个list容器的实例LISTCHAR
int main(void)  {      
	LISTINT listOne;    //用LISTINT创建一个名为listOne的list对象   
	LISTINT::iterator i;    //声明i为迭代器       
	listOne.push_front (2); //从前面向listOne容器中添加数据
	listOne.push_front (1);   
	listOne.push_back (3); 	//从后面向listOne容器中添加数据
	listOne.push_back (4);      
     
	cout<<"listOne.begin()--- listOne.end():"<<endl;   //从前向后显示listOne中的数据
	for (i = listOne.begin(); i != listOne.end(); ++i)       
		cout << *i << " ";    
	cout << endl;         
	     
	LISTINT::reverse_iterator ir;    //从后向后显示listOne中的数据
	cout<<"listOne.rbegin()---listOne.rend():"<<endl; 
	for (ir =listOne.rbegin(); ir!=listOne.rend();ir++)          
		cout << *ir << " ";           
	cout << endl;          
   
	int result = accumulate(listOne.begin(), listOne.end(),0);  //使用STL的accumulate(累加)算法      
	cout<<"Sum="<<result<<endl;    
 
	LISTCHAR listTwo;   //用LISTCHAR创建一个名为listOne的list对象  
	LISTCHAR::iterator j;      //声明j为迭代器      
	listTwo.push_front ('A');  //从前面向listTwo容器中添加数据   
	listTwo.push_front ('B');     
	listTwo.push_back ('x');   //从后面向listTwo容器中添加数据 
	listTwo.push_back ('y');       
	cout<<"listTwo.begin()---listTwo.end():"<<endl; //从前向后显示listTwo中的数据
	for (j = listTwo.begin(); j != listTwo.end(); ++j)    
		cout << char(*j) << " ";    
	cout << endl;     
	//使用STL的max_element算法求listTwo中的最大元素并显示   
	j=max_element(listTwo.begin(),listTwo.end());      
	cout << "The maximum element in listTwo is: "<<char(*j)<<endl;
	return 0;
}