結果
問題 | No.124 門松列(3) |
ユーザー | tenten |
提出日時 | 2021-05-19 17:45:42 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 144 ms / 5,000 ms |
コード長 | 3,557 bytes |
コンパイル時間 | 3,805 ms |
コンパイル使用メモリ | 88,132 KB |
実行使用メモリ | 47,016 KB |
最終ジャッジ日時 | 2024-10-09 21:42:17 |
合計ジャッジ時間 | 6,655 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
(要ログイン)
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 | 132 ms
45,968 KB |
testcase_01 | AC | 57 ms
37,204 KB |
testcase_02 | AC | 56 ms
37,040 KB |
testcase_03 | AC | 144 ms
47,016 KB |
testcase_04 | AC | 124 ms
46,408 KB |
testcase_05 | AC | 122 ms
46,012 KB |
testcase_06 | AC | 56 ms
37,312 KB |
testcase_07 | AC | 55 ms
37,296 KB |
testcase_08 | AC | 55 ms
37,344 KB |
testcase_09 | AC | 56 ms
37,204 KB |
testcase_10 | AC | 57 ms
37,236 KB |
testcase_11 | AC | 56 ms
37,040 KB |
testcase_12 | AC | 57 ms
37,144 KB |
testcase_13 | AC | 57 ms
37,240 KB |
testcase_14 | AC | 58 ms
37,096 KB |
testcase_15 | AC | 58 ms
37,148 KB |
testcase_16 | AC | 71 ms
38,304 KB |
testcase_17 | AC | 61 ms
37,408 KB |
testcase_18 | AC | 58 ms
37,232 KB |
testcase_19 | AC | 59 ms
37,468 KB |
testcase_20 | AC | 72 ms
37,536 KB |
testcase_21 | AC | 59 ms
37,196 KB |
testcase_22 | AC | 63 ms
37,364 KB |
testcase_23 | AC | 95 ms
40,308 KB |
testcase_24 | AC | 100 ms
41,320 KB |
testcase_25 | AC | 109 ms
41,384 KB |
testcase_26 | AC | 77 ms
38,724 KB |
testcase_27 | AC | 67 ms
38,064 KB |
testcase_28 | AC | 121 ms
45,908 KB |
testcase_29 | AC | 126 ms
45,956 KB |
ソースコード
import java.io.*; import java.util.*; public class Main { public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int w = sc.nextInt(); int h = sc.nextInt(); int[][] field = new int[h][w]; for (int i = 0; i < h; i++) { for (int j = 0; j < w; j++) { field[i][j] = sc.nextInt(); } } PriorityQueue<Path> queue = new PriorityQueue<>(); int[][][][] costs = new int[10][10][h][w]; for (int[][][] arr1 : costs) { for (int[][] arr2 : arr1) { for (int[] arr3 : arr2) { Arrays.fill(arr3, Integer.MAX_VALUE); } } } queue.add(new Path(0, 0, 0, 0, 0)); while (queue.size() > 0) { Path p = queue.poll(); if (!isKadomatsu(p.prepre, p.pre, field[p.r][p.c]) || costs[p.prepre][p.pre][p.r][p.c] <= p.value) { continue; } costs[p.prepre][p.pre][p.r][p.c] = p.value; if (p.r > 0) { queue.add(new Path(p.r - 1, p.c, p.value + 1, p.pre, field[p.r][p.c])); } if (p.r < h - 1) { queue.add(new Path(p.r + 1, p.c, p.value + 1, p.pre, field[p.r][p.c])); } if (p.c > 0) { queue.add(new Path(p.r, p.c - 1, p.value + 1, p.pre, field[p.r][p.c])); } if (p.c < w - 1) { queue.add(new Path(p.r, p.c + 1, p.value + 1, p.pre, field[p.r][p.c])); } } int min = Integer.MAX_VALUE; for (int i = 0; i < 10; i++) { for (int j = 0; j < 10; j++) { min = Math.min(min, costs[i][j][h - 1][w - 1]); } } if (min == Integer.MAX_VALUE) { System.out.println(-1); } else { System.out.println(min); } } static boolean isKadomatsu(int prepre, int pre, int cur) { if (pre == 0) { return true; } else if (prepre == 0) { return pre != cur; } else { return prepre != cur && ((prepre < pre && pre > cur) || (prepre > pre && pre < cur)); } } static class Path implements Comparable<Path> { int r; int c; int value; int prepre; int pre; public Path(int r, int c, int value, int prepre, int pre) { this.r = r; this.c = c; this.value = value; this.prepre = prepre; this.pre = pre; } public int compareTo(Path another) { return value - another.value; } public String toString() { return r + ":" + c + ":" + value + ":" + prepre + ":" + pre; } } } class Scanner { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(""); public Scanner() throws Exception { } public int nextInt() throws Exception { return Integer.parseInt(next()); } public long nextLong() throws Exception { return Long.parseLong(next()); } public double nextDouble() throws Exception { return Double.parseDouble(next()); } public String next() throws Exception { if (!st.hasMoreTokens()) { st = new StringTokenizer(br.readLine()); } return st.nextToken(); } }