結果
| 問題 | No.323 yuki国 |
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2023-11-26 19:26:55 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 418 ms / 5,000 ms |
| コード長 | 3,271 bytes |
| コンパイル時間 | 3,015 ms |
| コンパイル使用メモリ | 86,880 KB |
| 実行使用メモリ | 52,328 KB |
| 最終ジャッジ日時 | 2024-09-26 11:51:53 |
| 合計ジャッジ時間 | 11,554 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 6 |
| other | AC * 32 |
ソースコード
import java.util.*;
import java.io.*;
public class Main {
private static int[] dy = {0,1,0,-1};
private static int[] dx = {1,0,-1,0};
private static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
public static void main(String[] args) throws Exception {
int[] h_w = readIntArray();
int h = h_w[0];
int w = h_w[1];
int[] aInfo = readIntArray();
int a = aInfo[0];
int si = aInfo[1];
int sj = aInfo[2];
int[] bInfo = readIntArray();
int b = bInfo[0];
int gi = bInfo[1];
int gj = bInfo[2];
boolean[][] field = new boolean[h][w];
for(int i = 0 ; i < h ; i++){
char[] terrains = br.readLine().toCharArray();
for(int j = 0 ; j < w ; j++){
if(terrains[j] == '*'){
field[i][j] = true;
}
}
}
boolean[][][] exist = new boolean[2000][h+1][w+1];
exist[a][si][sj] = true;
String judge = bfs(field , a , si , sj , b , gi , gj , h , w , exist);
System.out.println(judge);
}
private static String bfs(boolean[][] field , int firstVolume , int firstH , int firstW , int goalVolume , int goalH , int goalW , int h , int w , boolean[][][] exist){
ArrayDeque<Pair> todo = new ArrayDeque<>();
todo.addLast(new Pair(firstVolume , firstH , firstW));
while(!todo.isEmpty()){
Pair p = todo.pollFirst();
int currentH = p.getY();
int currentW = p.getX();
for(int i = 0 ; i < 4 ; i++){
int nextH = currentH + dy[i];
int nextW = currentW + dx[i];
if(nextH < 0 || nextH >= h || nextW < 0 || nextW >= w){
continue;
}
int size = p.getSize();
if(field[nextH][nextW]){
size++;
}else{
size--;
}
if(size >= 2000 || size <= 0){
continue;
}
if(exist[size][nextH][nextW]){
continue;
}
//System.out.println(size+":"+nextH+":"+nextW);
exist[size][nextH][nextW] = true;
todo.addLast(new Pair(size , nextH , nextW));
}
}
return exist[goalVolume][goalH][goalW] ? "Yes" : "No";
}
private static int[] readIntArray() throws Exception{
int[] intArray = Arrays.stream(br.readLine().split(" "))
.mapToInt(Integer::parseInt).toArray();
return intArray;
}
}
class Pair{
int size , y , x;
public Pair(int size , int y , int x){
this.size = size;
this.y = y;
this.x = x;
}
public int getSize(){
return size;
}
public int getY(){
return y;
}
public int getX(){
return x;
}
}