题解 | 矩阵乘法
矩阵乘法
https://www.nowcoder.com/practice/ebe941260f8c4210aa8c17e99cbc663b
x = int(input()) y = int(input()) z = int(input()) A = [] for i in range(x): A.append([int(j) for j in input().split()]) B = [] for i in range(y): B.append([int(j) for j in input().split()]) C = [] for k, v in enumerate(A): row = [] for j in range(z): res = sum([v[i]*B[i][j] for i in range(y)]) row.append(res) C.append(row) for i in C: print(" ".join([str(j) for j in i])) # print(A) # print(B) # print(C)