C++ STL 逆转旋转 reverse reverse_copy rotate

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

using namespace std;

int main()
{
  vector<int> vec1;
  for (int k=0;k<10;k++)
  {
    vec1.push_back(k);
  }

  vector<int>::iterator vec_iter1;
  for (vec_iter1 = vec1.begin();vec_iter1 != vec1.end();++vec_iter1)
  {
    cout << *vec_iter1 << " ";
  }
  cout << endl;
  cout << "---------------------------------------" << endl;

  //逆转
  reverse(vec1.begin(), vec1.end());

  for (vec_iter1 = vec1.begin(); vec_iter1 != vec1.end(); ++vec_iter1)
  {
    cout << *vec_iter1 << " ";
  }
  cout << endl;
  cout << "---------------------------------------" << endl;

  vector<int> vec2;
  reverse_copy(vec1.begin(), vec1.end(), ostream_iterator<int>(cout," "));
  cout << endl;
  cout << "---------------------------------------" << endl;

  //旋转
  rotate(vec1.begin(), vec1.begin() + 5, vec1.end());

  for (vec_iter1 = vec1.begin(); vec_iter1 != vec1.end(); ++vec_iter1)
  {
    cout << *vec_iter1 << " ";
  }
  cout << endl;
  cout << "---------------------------------------" << endl;

  rotate(vec1.begin(), find(vec1.begin(), vec1.end(), 9), vec1.end());

  for (vec_iter1 = vec1.begin(); vec_iter1 != vec1.end(); ++vec_iter1)
  {
    cout << *vec_iter1 << " ";
  }
  cout << endl;
  cout << "---------------------------------------" << endl;

 


  system("pause");
  return 0;
}

=====================================================

0 1 2 3 4 5 6 7 8 9
---------------------------------------
9 8 7 6 5 4 3 2 1 0
---------------------------------------
0 1 2 3 4 5 6 7 8 9
---------------------------------------
4 3 2 1 0 9 8 7 6 5
---------------------------------------
9 8 7 6 5 4 3 2 1 0
---------------------------------------
请按任意键继续. . .

posted @ 2019-06-12 19:37  西北逍遥  阅读(408)  评论(0编辑  收藏  举报