最短代码实现vector的输入-排序-输出

#include <iostream>
#include <vector>
#include <algorithm>
#include <iterator>

void main()
{
 std::vector<int> ivec((std::istream_iterator<int> (std::cin)),std::istream_iterator<int>() );
 sort(ivec.begin(),ivec.end());
 copy(ivec.begin(),ivec.end(),std::ostream_iterator<int> (std::cout," "));
}