The standard algorithm uses directly the definition of matrix multiplication, which takes p q r multiplications (of two numbers) for a p q matrix multiplied by a q r matrix.So the answer is 64 64 64.

• 这是因为答案中共有6464个数；其中每一个数是[第一个阵列中某一列]和[第二个阵列中某一行]的内积.；此内积需要64个乘(及63个加)