题解 | #矩阵乘法#

for循环生，for循环死，就是慢了点64ms 4804kb

# 做完了看题解，原来大家都是for循环到头hhh
# x*y和y*z
x=int(input())
y=int(input())
z=int(input())
# x*y矩阵
lst_a=[]
for i in range(x):
    lst=list(map(int,input().split()))
    lst_a.append(lst)
# y*z矩阵
lst_b=[]
for j in range(y):
    lst=list(map(int,input().split()))
    lst_b.append(lst)
# 矩阵相乘
lst_c=[]
for s in range(x):
    for d in range(z):
        a = 0
        for f in range(y):
            a+=lst_a[s][f]*lst_b[f][d]
        lst_c.append(a)
# 换行输出
for c in range(0,int(x*z),z):
    print(*lst_c[c:c+z],end=' ')
    print()