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Main16959.java
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Main16959.java
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import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
public class Main16959 {
public static void main(String[] args) throws NumberFormatException, IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
StringTokenizer st = new StringTokenizer(br.readLine());
int R = Integer.parseInt(st.nextToken());
int C = Integer.parseInt(st.nextToken());
char[][] map = new char[R][C];
boolean w = false;
for(int i=0;i<R;i++) {
map[i] = br.readLine().toCharArray();
for(int j=0;j<C;j++) {
if(map[i][j] == '.'){
map[i][j] = 'D';
}
}
}
int[] dx = {-1,0,1,0};
int[] dy = {0,-1,0,1};
boolean flag = true;
label:for(int i=0;i<R;i++) {
for(int j=0;j<C;j++) {
if(map[i][j] == 'W') {
for(int k=0;k<4;k++) {
int nx = i+dx[k];
int ny = j+dy[k];
if(nx>=0 && ny>=0 && nx<R && ny<C) {
if(map[nx][ny] == 'S') {
flag = false;
break label;
}
}
}
}
}
}
System.out.println(flag ?1:0);
if(flag) {
StringBuilder sb =new StringBuilder();
for(int i=0;i<R;i++) {
for(int j=0;j<C;j++) {
sb.append(map[i][j]);
}
sb.append('\n');
}
System.out.println(sb.toString());
}
}
}