結果
問題 | No.34 砂漠の行商人 |
ユーザー | uafr_cs |
提出日時 | 2015-09-16 21:09:11 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 204 ms / 5,000 ms |
コード長 | 2,733 bytes |
コンパイル時間 | 2,425 ms |
コンパイル使用メモリ | 82,536 KB |
実行使用メモリ | 41,516 KB |
最終ジャッジ日時 | 2024-06-28 10:24:19 |
合計ジャッジ時間 | 6,606 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 50 ms
37,000 KB |
testcase_01 | AC | 48 ms
37,100 KB |
testcase_02 | AC | 57 ms
37,072 KB |
testcase_03 | AC | 52 ms
36,652 KB |
testcase_04 | AC | 110 ms
39,788 KB |
testcase_05 | AC | 112 ms
39,752 KB |
testcase_06 | AC | 110 ms
39,508 KB |
testcase_07 | AC | 152 ms
40,192 KB |
testcase_08 | AC | 152 ms
40,084 KB |
testcase_09 | AC | 149 ms
39,936 KB |
testcase_10 | AC | 192 ms
41,516 KB |
testcase_11 | AC | 201 ms
40,584 KB |
testcase_12 | AC | 92 ms
38,184 KB |
testcase_13 | AC | 204 ms
40,584 KB |
testcase_14 | AC | 182 ms
40,372 KB |
testcase_15 | AC | 100 ms
38,012 KB |
testcase_16 | AC | 110 ms
39,636 KB |
testcase_17 | AC | 102 ms
39,240 KB |
testcase_18 | AC | 60 ms
37,064 KB |
testcase_19 | AC | 145 ms
40,448 KB |
testcase_20 | AC | 174 ms
40,212 KB |
testcase_21 | AC | 146 ms
40,052 KB |
testcase_22 | AC | 129 ms
39,952 KB |
testcase_23 | AC | 104 ms
39,464 KB |
testcase_24 | AC | 151 ms
40,512 KB |
testcase_25 | AC | 120 ms
40,176 KB |
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[][] cur_max_hp = new int[N][N]; int[][] next_max_hp = new int[N][N]; for(int i = 0; i < N; i++){ for(int j = 0; j < N; j++){ cur_max_hp[i][j] = 0; next_max_hp[i][j] = 0; } } int count = 0; cur_max_hp[Sy][Sx] = V; while(true){ for(int i = 0; i < N; i++){ for(int j = 0; j < N; j++){ next_max_hp[i][j] = cur_max_hp[i][j]; } } boolean updated = false; for(int x = 0; x < N; x++){ for(int y = 0; y < N; y++){ for(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 = cur_max_hp[y][x] - damage[ny][nx]; if(next_hp > next_max_hp[ny][nx]){ updated = true; next_max_hp[ny][nx] = next_hp; } } } } if(next_max_hp[Gy][Gx] > 0){ System.out.println(count + 1); break; }else if(!updated){ System.out.println(-1); break; } count++; int[][] tmp = cur_max_hp; cur_max_hp = next_max_hp; next_max_hp = tmp; } } 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(); } } }