题解 | 矩阵乘法

import sys
   
raw_input = []
for i,line in enumerate(sys.stdin):
    raw_input.append(line.strip())


x, y, z = int(raw_input[0]), int(raw_input[1]), int(raw_input[2])
matrix_a = [[int(i) for i in row.split(' ')] for row in raw_input[3:3+x]]
matrix_b = [[int(i) for i in row.split(' ')] for row in raw_input[3+x:3+x+y]]

matrix_c = [[0]*z for _ in range(x)]
for i in range(x):
    for j in range(z):
        matrix_c[i][j] = sum([matrix_a[i][k] * matrix_b[k][j] for k in range(y)])

for row in matrix_c:
    print(' '.join([str(i) for i in row]))