c++逆置数组reserve

Sure, here's a sample code for reversing an array in C:

#include <stdio.h>

void reverse(int arr[], int n) {
    int temp;
    for (int i = 0; i < n/2; i++) {
        temp = arr[i];
        arr[i] = arr[n-i-1];
        arr[n-i-1] = temp;
    }
}

int main() {
    int arr[] = {1, 2, 3, 4, 5};
    int n = sizeof(arr)/sizeof(arr[0]);
    reverse(arr, n);
    for (int i = 0; i < n; i++) {
        printf("%d ", arr[i]);
    }
    return 0;
}

This code uses a simple swapping technique to reverse the elements of an array. The `reverse` function takes an array and its size as input, and swaps the first and last elements, then the second and second-to-last elements, and so on, until the entire array is reversed. The `main` function initializes an array, calls the `reverse` function, and then prints the reversed array.