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描述:
Input
Output
Sample Input
10 12 W........WW. .WWW.....WWW ....WW...WW. .........WW. .........W.. ..W......W.. .W.W.....WW. W.W.W.....W. .W.W......W. ..W.......W.
1 import java.util.Scanner; 2 public class Main { 3 4 5 private static char filed[][]=new char[100][100]; 6 public static void search(int x,int y,int n,int m){ 7 filed[x][y]=‘.‘; 8 for(int i=-1;i<2;i++) 9 for(int j=-1;j<2;j++){ 10 int px=x+i,py=y+j; 11 if(px>=0&&py>=0&&px<n&&py<m){ 12 if(filed[px][py]==‘W‘){ 13 filed[px][py]=‘.‘; 14 Main.search(px, py, n, m); 15 } 16 } 17 } 18 } 19 public static void main(String[] args) { 20 // write your code here 21 int n=0,m=0; 22 int num=0; //池塘总数 23 String s; 24 Scanner sc = new Scanner(System.in); 25 n=sc.nextInt(); 26 m=sc.nextInt(); 27 for(int i=0;i<n;i++){ //输入W和. 28 s=sc.next(); 29 for(int j=0;j<m;j++){ 30 filed[i][j]=s.charAt(j); //把W和.存入数组 31 } 32 } 33 sc.close(); 34 for(int i=0;i<n;i++) 35 for(int j=0;j<m;j++){ 36 if(filed[i][j]==‘W‘){ 37 Main.search(i,j,n,m); 38 num++; 39 } 40 } 41 System.out.println(num); 42 43 44 } 45 }
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原文地址:http://www.cnblogs.com/duanqiong/p/4403453.html