結果
問題 | No.2354 Poor Sight in Winter |
ユーザー | tenten |
提出日時 | 2023-12-12 10:49:24 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 417 ms / 2,000 ms |
コード長 | 3,556 bytes |
コンパイル時間 | 2,513 ms |
コンパイル使用メモリ | 91,868 KB |
実行使用メモリ | 67,096 KB |
最終ジャッジ日時 | 2024-09-27 04:53:46 |
合計ジャッジ時間 | 7,831 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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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
50,360 KB |
testcase_01 | AC | 51 ms
50,408 KB |
testcase_02 | AC | 52 ms
50,516 KB |
testcase_03 | AC | 52 ms
50,504 KB |
testcase_04 | AC | 53 ms
50,400 KB |
testcase_05 | AC | 52 ms
50,412 KB |
testcase_06 | AC | 51 ms
50,496 KB |
testcase_07 | AC | 50 ms
50,516 KB |
testcase_08 | AC | 52 ms
50,456 KB |
testcase_09 | AC | 51 ms
50,508 KB |
testcase_10 | AC | 52 ms
50,560 KB |
testcase_11 | AC | 99 ms
51,736 KB |
testcase_12 | AC | 309 ms
67,096 KB |
testcase_13 | AC | 251 ms
65,432 KB |
testcase_14 | AC | 417 ms
65,632 KB |
testcase_15 | AC | 170 ms
56,840 KB |
testcase_16 | AC | 332 ms
64,768 KB |
testcase_17 | AC | 369 ms
64,696 KB |
testcase_18 | AC | 149 ms
56,168 KB |
testcase_19 | AC | 211 ms
59,084 KB |
testcase_20 | AC | 102 ms
52,680 KB |
testcase_21 | AC | 89 ms
52,144 KB |
testcase_22 | AC | 147 ms
56,560 KB |
testcase_23 | AC | 106 ms
53,804 KB |
testcase_24 | AC | 229 ms
58,524 KB |
testcase_25 | AC | 106 ms
53,552 KB |
testcase_26 | AC | 106 ms
53,696 KB |
testcase_27 | AC | 74 ms
50,836 KB |
testcase_28 | AC | 88 ms
52,112 KB |
ソースコード
import java.io.*; import java.util.*; import java.util.stream.*; public class Main { public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int n = sc.nextInt(); int k = sc.nextInt(); Point[] points = new Point[n + 2]; int[][] distances = new int[n + 2][n + 2]; for (int i = 0; i < n + 2; i++) { points[i] = new Point(sc.nextInt(), sc.nextInt()); for (int j = 0; j < i; j++) { int d = points[i].getDistance(points[j]); distances[i][j] = d; distances[j][i] = d; } } int left = 0; int right = Integer.MAX_VALUE / 2; PriorityQueue<Path> queue = new PriorityQueue<>(); int[] costs = new int[n + 2]; while (right - left > 1) { int m = (left + right) / 2; queue.clear(); queue.add(new Path(0, 0)); Arrays.fill(costs, Integer.MAX_VALUE); while (queue.size() > 0) { Path p = queue.poll(); if (costs[p.idx] <= p.value) { continue; } costs[p.idx] = p.value; if (p.idx == 1) { break; } for (int i = 0; i < n + 2; i++) { if (costs[i] == Integer.MAX_VALUE) { queue.add(new Path(i, p.value + (distances[i][p.idx] + m - 1) / m - 1)); } } } if (costs[1] <= k) { right = m; } else { left = m; } } System.out.println(right); } static class Path implements Comparable<Path> { int idx; int value; public Path(int idx, int value) { this.idx = idx; this.value = value; } public int compareTo(Path another) { return value - another.value; } } static class Point { int x; int y; public Point(int x, int y) { this.x = x; this.y = y; } public int getDistance(Point p) { return Math.abs(x - p.x) + Math.abs(y - p.y); } } } class Utilities { static String arrayToLineString(Object[] arr) { return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n")); } static String arrayToLineString(int[] arr) { return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new)); } } class Scanner { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(""); StringBuilder sb = new StringBuilder(); 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 int[] nextIntArray() throws Exception { return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray(); } public String next() throws Exception { while (!st.hasMoreTokens()) { st = new StringTokenizer(br.readLine()); } return st.nextToken(); } }