C++数组元素逆置

#include<iostream>
using namespace std;

//数组元素逆置

int main(){
    
    //1. 创建数组
    int arr[5] = {1,3,5,7,9};

    //2. 实现逆置
    int start = 0;
    int end = sizeof(arr) / sizeof(arr[0]) - 1;

    while (start < end)
    {
        //实现元素互换
        int temp = arr[start];
        arr[start] = arr[end];
        arr[end] = temp;

        //下标更新
        start++;
        end--;
    }
    
    //3. 打印逆置后的数组
    cout << "数组元素逆置后：" << endl;
    for (int i = 0; i < 5; i++)
    {
        cout << arr[i] << " ";
    }
    

    system("pause");
    return 0;
}