题解 | #矩阵相等判定#

import java.util.*;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int m = sc.nextInt();
        int [][]arr1 = new int[n][m];
        int [][]arr2 = new int[n][m];
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < m; j++) {
                arr1[i][j] = sc.nextInt();
            }
        }

        for (int i = 0; i < n; i++) {
            for (int j = 0; j < m; j++) {
                arr2[i][j] = sc.nextInt();
            }
        }

        boolean flag = true;
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < m; j++) {
                if (!(arr1[i][j] == arr2[i][j])) {
                    flag = false;
                    break;
                } else {
                    flag = true;
                }
            }
        }

        if (flag) {
            System.out.println("Yes");
        } else {
            System.out.println("No");
        }
    }
}