题解 | #矩阵乘法#
矩阵乘法
https://www.nowcoder.com/practice/ebe941260f8c4210aa8c17e99cbc663b
from pickle import LIST x = int(input()) y = int(input()) z = int(input()) A = [] B = [] C = [[0 for j in range(z)] for i in range(x)] for i in range(x): A.append(list(map(int,input().split()))) for j in range(y): B.append(list(map(int,input().split()))) for i in range(x): for k in range(z): sum = 0 for j in range(y): sum += A[i][j] * B[j][k] C[i][k] = sum for i in C: for j in i: print(j,end=' ') print()