java 蓝桥杯算法提高 矩阵乘法

 1 import java.util.Scanner;
 2 public class _86矩阵乘法 {
 3     public static void main(String[] args) {
 4         Scanner scanner = new Scanner(System.in);
 5         int m = scanner.nextInt();
 6         int s = scanner.nextInt();
 7         int n = scanner.nextInt();
 8         int[][] a = new int[200][200];
 9         int[][] b = new int[200][200];
10         for (int i = 0; i < m; i++) {
11             for (int j = 0; j < s; j++) {
12                 a[i][j] = scanner.nextInt();
13             }
14         }
15         for (int i = 0; i < s; i++) {
16             for (int j = 0; j < n; j++) {
17                 b[i][j] = scanner.nextInt();
18             }
19         }
20         int[][] c = new int[200][200];
21         for (int i = 0; i < m; i++) {
22             for (int j = 0; j < n; j++) {
23                 for (int j2 = 0; j2 < s; j2++) {
24                     c[i][j] += a[i][j2]*b[j2][j];
25                 }
26             }
27         }
28         for (int i = 0; i < m; i++) {
29             for (int j = 0; j < n; j++) {
30                 System.out.print(c[i][j]+" ");
31             }
32             System.out.println();
33         }
34     }
35 }