//文件名：CHAPTER5-24.cpp
#include <iostream>
#include <set>
int main()
{
// type of the collection
typedef std::set<int> IntSet;
IntSet coll; // set 容器 for int values
/* insert elements from 1 to 6 in arbitrary order-value1 gets inserted twice*/
coll.insert(3);
coll.insert(1);
coll.insert(5);
coll.insert(4);
coll.insert(1);
coll.insert(6);
coll.insert(2);
/* print all elements iterate over all elements*/
IntSet::const_iterator pos;
for (pos = coll.begin(); pos != coll.end(); ++pos) {std::cout << *pos << ' ';}
std::cout << std::endl;
}