結果
問題 | No.614 壊れたキャンパス |
ユーザー | tenten |
提出日時 | 2023-06-15 08:32:50 |
言語 | Java21 (openjdk 21) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,352 bytes |
コンパイル時間 | 2,939 ms |
コンパイル使用メモリ | 85,076 KB |
実行使用メモリ | 193,576 KB |
最終ジャッジ日時 | 2024-06-23 10:29:14 |
合計ジャッジ時間 | 10,532 ms |
ジャッジサーバーID (参考情報) |
judge5 / 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
42,584 KB |
testcase_01 | AC | 47 ms
37,180 KB |
testcase_02 | AC | 47 ms
37,376 KB |
testcase_03 | AC | 48 ms
37,384 KB |
testcase_04 | WA | - |
testcase_05 | AC | 47 ms
37,284 KB |
testcase_06 | WA | - |
testcase_07 | AC | 49 ms
37,416 KB |
testcase_08 | TLE | - |
testcase_09 | TLE | - |
testcase_10 | -- | - |
testcase_11 | -- | - |
testcase_12 | -- | - |
testcase_13 | -- | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
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 m = sc.nextInt(); int k = sc.nextInt(); int s = sc.nextInt(); int t = sc.nextInt(); ArrayList<TreeMap<Integer, Integer>> places = new ArrayList<>(); for (int i = 0; i < n; i++) { places.add(new TreeMap<>()); } places.get(0).put(s, null); places.get(n - 1).put(t, null); int[] buils = new int[m]; int[] lefts = new int[m]; int[] rights = new int[m]; for (int i = 0; i < m; i++) { buils[i] = sc.nextInt() - 1; lefts[i] = sc.nextInt(); rights[i] = sc.nextInt(); places.get(buils[i]).put(lefts[i], null); places.get(buils[i] + 1).put(rights[i], null); } int count = 0; for (TreeMap<Integer, Integer> x : places) { count += x.size(); } ArrayList<ArrayList<Path>> graph = new ArrayList<>(); for (int i = 0; i < count; i++) { graph.add(new ArrayList<>()); } int idx = 0; for (TreeMap<Integer, Integer> x : places) { int prev = -1; for (int y : x.keySet()) { x.put(y, idx); if (prev >= 0) { graph.get(idx - 1).add(new Path(idx, y - prev)); graph.get(idx).add(new Path(idx - 1, y - prev)); } prev = y; idx++; } } for (int i = 0; i < m; i++) { int a = places.get(buils[i]).get(lefts[i]); int b = places.get(buils[i] + 1).get(rights[i]); graph.get(a).add(new Path(b, 0)); graph.get(b).add(new Path(a, 0)); } PriorityQueue<Path> queue = new PriorityQueue<>(); queue.add(new Path(places.get(0).get(s), 0)); long[] costs = new long[count]; Arrays.fill(costs, Long.MAX_VALUE); while (queue.size() > 0) { Path p = queue.poll(); if (costs[p.idx] <= p.value) { continue; } costs[p.idx] = p.value; for (Path x : graph.get(p.idx)) { queue.add(new Path(x.idx, x.value + p.value)); } } int goal = places.get(n - 1).get(t); if (costs[goal] == Long.MAX_VALUE) { System.out.println(-1); } else { System.out.println(costs[goal]); } } static class Path implements Comparable<Path> { int idx; long value; public Path(int idx, long value) { this.idx = idx; this.value = value; } public int compareTo(Path another) { if (value == another.value) { return 0; } else if (value < another.value) { return -1; } else { return 1; } } } } 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(); } }