結果
| 問題 | No.34 砂漠の行商人 |
| コンテスト | |
| ユーザー |
uafr_cs
|
| 提出日時 | 2015-09-16 20:56:57 |
| 言語 | Java (openjdk 23) |
| 結果 |
MLE
|
| 実行時間 | - |
| コード長 | 2,810 bytes |
| 記録 | |
| コンパイル時間 | 2,307 ms |
| コンパイル使用メモリ | 78,720 KB |
| 実行使用メモリ | 684,420 KB |
| 最終ジャッジ日時 | 2024-07-19 06:45:24 |
| 合計ジャッジ時間 | 18,166 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| other | AC * 25 MLE * 1 |
ソースコード
import java.io.BufferedReader;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Scanner;
import java.util.Set;
import java.util.StringTokenizer;
public class Main {
public static final int[][] move_dir = {{1, 0}, {-1, 0}, {0, 1}, {0, -1}};
public static void main(String[] args) throws IOException {
Scanner sc = new Scanner(System.in);
final int N = sc.nextInt();
final int V = sc.nextInt();
final int Sx = sc.nextInt() - 1;
final int Sy = sc.nextInt() - 1;
final int Gx = sc.nextInt() - 1;
final int Gy = sc.nextInt() - 1;
int[][] damage = new int[N][N];
for(int i = 0; i < N; i++){
for(int j = 0; j < N; j++){
damage[i][j] = sc.nextInt();
}
}
int[][][] min_steps = new int[N][N][V + 1];
for(int i = 0; i < N; i++){
for(int j = 0; j < N; j++){
Arrays.fill(min_steps[i][j], Integer.MAX_VALUE);
}
}
LinkedList<Integer> x_queue = new LinkedList<Integer>();
LinkedList<Integer> y_queue = new LinkedList<Integer>();
LinkedList<Integer> hp_queue = new LinkedList<Integer>();
min_steps[Sy][Sx][V] = 0;
x_queue.add(Sx);
y_queue.add(Sy);
hp_queue.add(V);
while(!hp_queue.isEmpty()){
final int x = x_queue.poll();
final int y = y_queue.poll();
final int hp = hp_queue.poll();
if(x == Gx && y == Gy){
System.out.println(min_steps[y][x][hp]);
return;
}
for(final int[] move : move_dir){
final int nx = x + move[0];
final int ny = y + move[1];
if(nx < 0 || nx >= N || ny < 0 || ny >= N){
continue;
}
final int next_hp = hp - damage[ny][nx];
if(next_hp <= 0){ continue; }
final int next_step = min_steps[y][x][hp] + 1;
if(next_step < min_steps[ny][nx][next_hp]){
min_steps[ny][nx][next_hp] = next_step;
x_queue.add(nx);
y_queue.add(ny);
hp_queue.add(next_hp);
}
}
}
System.out.println(-1);
}
public static class Scanner implements Closeable {
private BufferedReader br;
private StringTokenizer tok;
public Scanner(InputStream is) throws IOException {
br = new BufferedReader(new InputStreamReader(is));
}
private void getLine() throws IOException {
while (!hasNext()) {
tok = new StringTokenizer(br.readLine());
}
}
private boolean hasNext() {
return tok != null && tok.hasMoreTokens();
}
public String next() throws IOException {
getLine();
return tok.nextToken();
}
public int nextInt() throws IOException {
return Integer.parseInt(next());
}
public long nextLong() throws IOException {
return Long.parseLong(next());
}
public void close() throws IOException {
br.close();
}
}
}
uafr_cs