C++ Primer课后练习10.34~10.37，10.42

//练习10.34：使用reverse_iterator逆序打印一个vector
#include<iostream>
#include<iterator>
#include<string>
#include<algorithm>
#include<vector>
using namespace std;
int main(void)
{
	vector<string> vec;
	string ss;
	while (cin >> ss)
	{
		vec.push_back(ss);
	}
	for (auto t_iter = vec.crbegin();
		t_iter != vec.crend(); ++t_iter)
		cout << *t_iter << " ";
	cout << endl;
}
/*********************************************************************
//练习10.35：使用普通迭代器逆序打印一个vector
#include<iostream>
#include<iterator>
#include<string>
#include<algorithm>
#include<vector>
using namespace std;
int main(void)
{
	vector<string> vec;
	string ss;
	while (cin >> ss)
	{
		vec.push_back(ss);
	}
	for (auto iter = prev(vec.cend()); iter != prev(vec.cbegin()); iter--)
		cout << *iter << " ";
	cout << endl;
	
}
/**********************************************************************/
//练习10.35&10.36
#include<iostream>
#include<list>
#include<iterator>
#include<algorithm>
#include<vector>
using namespace std;
int main(void)
{
	list<int> list1{ 4, 5, 6, 7, 8, 9, 10 ,0,1,2};
	auto opps=find(list1.crbegin(), list1.crend(),0); 
  	cout << *opps<< endl;

	vector<int> vec = { 1, 2, 3, 4, 5, 6, 7, 8, 9 ,10};

	auto iter1 = vec.crbegin()+ 3;//相加往前面移
	auto iter2 = vec.crend() -2;
	list<int> list2(iter1, iter2);
	for (auto ss : list2)
		cout << ss << " ";
	cout << endl;

}

//练习10.42
#include<iostream>
#include<list>
#include<algorithm>
#include<string>
using namespace std;
void elimdups(list<string> & list1)
{
	list1.sort();//按字典序排列list,以便查找重复单词
	list1.unique();

}
int main(void)
{
	string word;
	list<string> list1;
	while (cin >> word)
		list1.push_back(word);
	elimdups(list1);
	for (auto ss : list1)
		cout << ss << " ";
	cout << endl;

}