题解 | 数组元素反转

#include <iostream>
using namespace std;

int main() {

    int arr[6] = { 0 };

    int len = sizeof(arr) / sizeof(int);
    
    for (int i = 0; i < len; i++) {
        cin >> arr[i];
    }

    cout << "[";
    for (int i = 0; i < len; i++) {
        if (i == len - 1) {
            cout << arr[i] << "]" << endl;
            break;
        }
        cout << arr[i] << ", ";
    }

     for(int i=0;i<len/2;i++){
        for(int j=len-1;j>=len/2;j--){
          if(i+j==len-1){
            int temp=arr[i];
            arr[i]=arr[j];
            arr[j]=temp;
          }
        }
     }   

    cout << "[";
    for (int i = 0; i < len; i++) {
        if (i == len - 1) {
            cout << arr[i] << "]" << endl;
            break;
        }
        cout << arr[i] << ", ";
    }

    return 0;
}