二、阅读程序（共 40 分）

阅读程序（3）

#include <iostream>
using namespace std;

int A, B, C;
int a[25][25][25];

int main() {
    cin >> A >> B >> C;
    for (int i = 1; i <= A; i++)
        for (int j = 1; j <= B; j++)
            for (int k = 1; k <= C; k++)
                cin >> a[i][j][k];

    for (int i = 1; i <= A; i++)
        for (int j = 1; j <= B; j++)
            for (int k = 1; k <= C; k++)
                a[i][j][k] += a[i - 1][j][k];

    for (int i = 1; i <= A; i++)
        for (int j = 1; j <= B; j++)
            for (int k = 1; k <= C; k++)
                a[i][j][k] += a[i][j - 1][k];

    for (int i = 1; i <= A; i++)
        for (int j = 1; j <= B; j++)
            for (int k = 1; k <= C; k++)
                a[i][j][k] += a[i][j][k - 1];

    cout << a[A][B][C] << endl;
    return 0;
}

29. 在任何输入下，交换 $A$ 和 $C$ 的值，程序输出不变。（ ）

{{ select(1) }}

• 正确
• 错误