結果
問題 | No.614 壊れたキャンパス |
ユーザー | tenten |
提出日時 | 2023-04-07 12:59:50 |
言語 | Java21 (openjdk 21) |
結果 |
TLE
|
実行時間 | - |
コード長 | 4,384 bytes |
コンパイル時間 | 3,604 ms |
コンパイル使用メモリ | 92,020 KB |
実行使用メモリ | 195,804 KB |
最終ジャッジ日時 | 2024-10-02 18:32:37 |
合計ジャッジ時間 | 31,600 ms |
ジャッジサーバーID (参考情報) |
judge3 / 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 | 57 ms
50,360 KB |
testcase_01 | AC | 56 ms
50,332 KB |
testcase_02 | AC | 57 ms
49,968 KB |
testcase_03 | AC | 55 ms
50,136 KB |
testcase_04 | AC | 56 ms
50,184 KB |
testcase_05 | AC | 55 ms
50,136 KB |
testcase_06 | AC | 57 ms
50,360 KB |
testcase_07 | AC | 56 ms
50,616 KB |
testcase_08 | TLE | - |
testcase_09 | TLE | - |
testcase_10 | AC | 1,890 ms
195,804 KB |
testcase_11 | TLE | - |
testcase_12 | TLE | - |
testcase_13 | TLE | - |
testcase_14 | TLE | - |
testcase_15 | AC | 1,931 ms
188,324 KB |
testcase_16 | TLE | - |
testcase_17 | AC | 1,560 ms
194,096 KB |
testcase_18 | AC | 1,720 ms
159,760 KB |
testcase_19 | AC | 1,505 ms
155,008 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 m = sc.nextInt(); int k = sc.nextInt(); int s = sc.nextInt(); int t = sc.nextInt(); ArrayList<TreeMap<Integer, Integer>> compress = new ArrayList<>(); for (int i = 0; i < n; i++) { compress.add(new TreeMap<>()); } compress.get(0).put(s, null); compress.get(n - 1).put(t, null); int[] towers = new int[m]; int[] froms = new int[m]; int[] toes = new int[m]; for (int i = 0; i < m; i++) { towers[i] = sc.nextInt() - 1; froms[i] = sc.nextInt(); toes[i] = sc.nextInt(); compress.get(towers[i]).put(froms[i], null); compress.get(towers[i] + 1).put(toes[i], null); } int idx = 0; for (TreeMap<Integer, Integer> map : compress) { for (int x : map.keySet()) { map.put(x, idx++); } } ArrayList<ArrayList<Path>> graph = new ArrayList<>(); for (int i = 0; i < idx; i++) { graph.add(new ArrayList<>()); } for (TreeMap<Integer, Integer> map : compress) { int prev = -1; for (int x : map.keySet()) { if (prev >= 0) { int y = map.get(x); graph.get(y).add(new Path(y - 1, x - prev)); graph.get(y - 1).add(new Path(y, x - prev)); } prev = x; } } for (int i = 0; i < m; i++) { int left = compress.get(towers[i]).get(froms[i]); int right = compress.get(towers[i] + 1).get(toes[i]); graph.get(left).add(new Path(right, 0)); } int sIdx = compress.get(0).get(s); int tIdx = compress.get(n - 1).get(t); PriorityQueue<Path> queue = new PriorityQueue<>(); queue.add(new Path(sIdx, 0)); long[] costs = new long[idx]; 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)); } } if (costs[tIdx] == Long.MAX_VALUE) { System.out.println(-1); } else { System.out.println(costs[tIdx]); } } 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(); } }