照着书本敲的代码，将一个2x3的二维数组行和列的元素进行互换

Question

显示“Run-Time Check Failure #2 - Stack around the variable 'b' was corrupted.
”，真的不知道啥原因

int main() {
    int a[2][3] = { {1,2,3},{4,5,6} };
    int b[3][2], i, j;//定义b是一个三行2列数组
    cout << "array a:" << endl;
    for (i = 0; i < 2; i++)
    {
        for (j = 0; j < 3; j++)
            cout << a[i][j] << " ";
        b[j][i] = a[i][j];


        cout << endl;//输出一行进行换行

    }
    cout << "array b:" << endl;
    for (i = 0; i < 3; i++)
    {
        for (j = 0; j <2; j++)
            cout << b[i][j] << " ";
        cout << endl;




    }
    
    cout << endl;


return 0;
}

Answer 1

for (i = 0; i < 2; i++)
{
for (j = 0; j < 3; j++)
cout << a[i][j] << " ";
b[j][i] = a[i][j];

    cout << endl;//输出一行进行换行

}这个地方的b[j][i]中的j未初始化，for在不加括号的情况下只管其后的一个语句，可以改成

for (j = 0; j < 3; j++)
{ cout << a[i][j] << " ";
b[j][i] = a[i][j];
}试试