如何编写在2D数组中交换行的函数(c++)

void swapRows(int arr[][N], int row1, int row2) {
    // 交换行的逻辑将在步骤2中实现
}

void swapRows(int arr[][N], int row1, int row2) {
    int temp[N];
    for (int i = 0; i < N; i++) {
        temp[i] = arr[row1][i];
        arr[row1][i] = arr[row2][i];
        arr[row2][i] = temp[i];
    }
}

int main() {
    int arr[M][N] = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
    int row1 = 0;
    int row2 = 2;

    swapRows(arr, row1, row2);

    // 打印结果
    for (int i = 0; i < M; i++) {
        for (int j = 0; j < N; j++) {
            cout << arr[i][j] << " ";
        }
        cout << endl;
    }

    return 0;
}