c++ - 创建 x 个数组

Question

可以说我在下面有这个。

int arrays = 0;

cin >> arrays ;

for(int i = 0; i < arrays ; i++)
{
        ????? Not sure what to do here.
}

我想用 39 个元素（40）创建用户输入的 x 个数组。我将如何创建它forloop来创建 4 个数组？例如它会使array1 array2 array3 array4

Answer 1

int arrays = 0;

cin >> arrays ;

int *ptr = new int [arrays]; //Make sure to validate arrays against errors
                             //and don't forget to de-allocate using delete[] when done

for(int i = 0; i < arrays ; i++)
{
        ptr[i] = i;
}