C++ STL sort

#include <iostream>
#include <deque>
#include <algorithm>
#include <functional>

using namespace std;

int main()
{
　　deque<int> deque1;
　　for (int k=0;k<15;k++)
　　{
　　　　deque1.push_back(rand());
　　}

　　deque<int>::iterator deq_iter1;
　　for (deq_iter1 = deque1.begin(); deq_iter1 != deque1.end();++deq_iter1)
　　{
　　　　cout << *deq_iter1 << " ";
　　}
　　cout << endl;
　　cout << "--------------------------------------------" << endl;

　　sort(deque1.begin(), deque1.end());

　　for (deq_iter1 = deque1.begin(); deq_iter1 != deque1.end(); ++deq_iter1)
　　{
　　　　cout << *deq_iter1 << " ";
　　}
　　cout << endl;
　　cout << "--------------------------------------------" << endl;

　　random_shuffle(deque1.begin(), deque1.end());

　　for (deq_iter1 = deque1.begin(); deq_iter1 != deque1.end(); ++deq_iter1)
　　{
　　　　cout << *deq_iter1 << " ";
　　}
　　cout << endl;
　　cout << "--------------------------------------------" << endl;

　　sort(deque1.begin(),deque1.end(),greater<int>());

　　for (deq_iter1 = deque1.begin(); deq_iter1 != deque1.end(); ++deq_iter1)
　　{
　　　　cout << *deq_iter1 << " ";
　　}
　　cout << endl;
　　cout << "--------------------------------------------" << endl;

　　random_shuffle(deque1.begin(), deque1.end());

　　sort(deque1.begin(), deque1.end(), less<int>());

　　for (deq_iter1 = deque1.begin(); deq_iter1 != deque1.end(); ++deq_iter1)
　　{
　　　　cout << *deq_iter1 << " ";
　　}
　　cout << endl;
　　cout << "--------------------------------------------" << endl;

　　system("pause");
　　return 0;
}

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

41 18467 6334 26500 19169 15724 11478 29358 26962 24464 5705 28145 23281 16827 9961
--------------------------------------------
41 5705 6334 9961 11478 15724 16827 18467 19169 23281 24464 26500 26962 28145 29358
--------------------------------------------
15724 26962 16827 23281 18467 19169 24464 9961 29358 5705 26500 11478 28145 6334 41
--------------------------------------------
29358 28145 26962 26500 24464 23281 19169 18467 16827 15724 11478 9961 6334 5705 41
--------------------------------------------
41 5705 6334 9961 11478 15724 16827 18467 19169 23281 24464 26500 26962 28145 29358
--------------------------------------------
请按任意键继续. . .