C++ primer 习题练习：9.18

#include <list>#include <deque>#include <iostream>using namespace std;int main_9_18(){//定义并初始化一个list容器list<int> ilst;for (int i=0;i<41;i++){ilst.push_back(i);}//奇数复制到dqu1,偶数复制到dqu2deque<int> dqu1,dqu2;list<int>::iterator it=ilst.begin();while (it!=ilst.end()){dqu1.push_back(*it);it++;if (it==ilst.end())//为了防止越界，到达尾部后就结束操作{break;}dqu2.push_back(*it);it++;}//debug:显示这三个容器中的内容cout<<"ilist:"<<endl;for (list<int>::iterator iter=ilst.begin();iter!=ilst.end();++iter){cout<<*iter<<" ";}cout<<endl<<"dqu1:"<<endl;for (deque<int>::iterator iter=dqu1.begin();iter!=dqu1.end();++iter){cout<<*iter<<" ";}cout<<endl<<"dqu2:"<<endl;for (deque<int>::iterator iter=dqu2.begin();iter!=dqu2.end();++iter){cout<<*iter<<" ";}cout<<endl;return 0;}