20.扫雷

题目

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int m = sc.nextInt();
		int[][] f = new int[n][m];
		for(int i=0;i<n;i++) {
			for(int j=0;j<m;j++) {
				f[i][j] = sc.nextInt();
			}
		}
		for(int i=0;i<n;i++) {
			for(int j=0;j<m;j++) {
				if(f[i][j] == 1) {
					System.out.print(9+" ");
				}else {
					int ans = 0;
					for(int a=i-1;a<=i+1;a++) {
						for(int b=j-1;b<=j+1;b++) {
							if(a<0 || a>=n || b<0 || b>=m)
								continue;
							if(f[a][b] == 1)
								ans++;
						}
					}
					System.out.print(ans+" ");					
				}
			}
			System.out.println();
		}
		sc.close();		
	}
}