元素的逆序

#include<iostream>
using namespace std;
int main()
{
    int temp = 0;
    int arr[6] = { 0,1,2,3,4,5 };

    for (int i = 0; i <= 6/2-1; i++) {
        temp = arr[i];
        arr[i] = arr[5 - i];
        arr[5 - i] = temp;
}

    for (int i = 0; i < 6; i++) {
        cout << arr[i] << endl;
    }

    cout << endl;
    system("pause");
    return 0;
}