結果
問題 | No.1065 電柱 / Pole (Easy) |
ユーザー |
![]() |
提出日時 | 2020-08-20 10:30:33 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 1,979 ms / 2,000 ms |
コード長 | 2,574 bytes |
コンパイル時間 | 2,261 ms |
コンパイル使用メモリ | 79,752 KB |
実行使用メモリ | 106,484 KB |
最終ジャッジ日時 | 2024-10-13 03:45:19 |
合計ジャッジ時間 | 56,511 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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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 | 109 ms
40,948 KB |
testcase_01 | AC | 131 ms
41,800 KB |
testcase_02 | AC | 1,471 ms
75,824 KB |
testcase_03 | AC | 1,502 ms
97,424 KB |
testcase_04 | AC | 1,718 ms
92,864 KB |
testcase_05 | AC | 1,392 ms
90,312 KB |
testcase_06 | AC | 1,471 ms
92,996 KB |
testcase_07 | AC | 730 ms
66,588 KB |
testcase_08 | AC | 1,466 ms
103,940 KB |
testcase_09 | AC | 517 ms
50,600 KB |
testcase_10 | AC | 1,103 ms
74,484 KB |
testcase_11 | AC | 912 ms
68,356 KB |
testcase_12 | AC | 924 ms
62,472 KB |
testcase_13 | AC | 1,549 ms
76,664 KB |
testcase_14 | AC | 1,555 ms
84,776 KB |
testcase_15 | AC | 1,719 ms
92,356 KB |
testcase_16 | AC | 1,255 ms
69,284 KB |
testcase_17 | AC | 1,713 ms
93,684 KB |
testcase_18 | AC | 1,054 ms
64,848 KB |
testcase_19 | AC | 1,622 ms
92,604 KB |
testcase_20 | AC | 957 ms
64,680 KB |
testcase_21 | AC | 1,194 ms
67,660 KB |
testcase_22 | AC | 1,632 ms
86,920 KB |
testcase_23 | AC | 243 ms
47,040 KB |
testcase_24 | AC | 269 ms
47,524 KB |
testcase_25 | AC | 1,018 ms
63,608 KB |
testcase_26 | AC | 1,244 ms
75,292 KB |
testcase_27 | AC | 1,275 ms
73,944 KB |
testcase_28 | AC | 1,570 ms
85,040 KB |
testcase_29 | AC | 636 ms
52,540 KB |
testcase_30 | AC | 1,665 ms
94,076 KB |
testcase_31 | AC | 1,451 ms
78,764 KB |
testcase_32 | AC | 1,193 ms
73,372 KB |
testcase_33 | AC | 1,530 ms
92,408 KB |
testcase_34 | AC | 1,140 ms
66,240 KB |
testcase_35 | AC | 1,716 ms
91,492 KB |
testcase_36 | AC | 215 ms
45,972 KB |
testcase_37 | AC | 233 ms
46,836 KB |
testcase_38 | AC | 222 ms
45,860 KB |
testcase_39 | AC | 254 ms
46,672 KB |
testcase_40 | AC | 194 ms
43,948 KB |
testcase_41 | AC | 1,979 ms
106,484 KB |
testcase_42 | AC | 1,085 ms
70,008 KB |
testcase_43 | AC | 1,365 ms
81,144 KB |
testcase_44 | AC | 840 ms
64,268 KB |
testcase_45 | AC | 1,381 ms
76,852 KB |
testcase_46 | AC | 123 ms
41,504 KB |
testcase_47 | AC | 111 ms
41,208 KB |
ソースコード
import java.util.*; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int m = sc.nextInt(); int x = sc.nextInt() - 1; int y = sc.nextInt() - 1; Node[] nodes = new Node[n]; for (int i = 0; i < n; i++) { nodes[i] = new Node(i, sc.nextInt(), sc.nextInt()); } HashMap<Node, ArrayList<Node>> graph = new HashMap<>(); for (int i = 0; i < m; i++) { int a = sc.nextInt() - 1; int b = sc.nextInt() - 1; if (!graph.containsKey(nodes[a])) { graph.put(nodes[a], new ArrayList<>()); } graph.get(nodes[a]).add(nodes[b]); if (!graph.containsKey(nodes[b])) { graph.put(nodes[b], new ArrayList<>()); } graph.get(nodes[b]).add(nodes[a]); } double[] costs = new double[n]; Arrays.fill(costs, Double.MAX_VALUE); PriorityQueue<Path> queue = new PriorityQueue<>(); queue.add(new Path(nodes[x], 0)); while (queue.size() > 0) { Path p = queue.poll(); if (costs[p.node.idx] <= p.value) { continue; } costs[p.node.idx] = p.value; for (Node nd : graph.get(p.node)) { queue.add(new Path(nd, p.value + p.node.getDistance(nd))); } } System.out.println(costs[y]); } static class Path implements Comparable<Path> { Node node; double value; public Path(Node node, double value) { this.node = node; this.value = value; } public int compareTo(Path another) { if (value == another.value) { return 0; } else if (value < another.value) { return -1; } else { return 1; } } } static class Node { int idx; int x; int y; public Node(int idx, int x, int y) { this.idx = idx; this.x = x; this.y = y; } public double getDistance(Node another) { return Math.sqrt(Math.pow(x - another.x, 2) + Math.pow(y - another.y, 2)); } public int hashCode() { return idx; } public boolean equals(Object o) { Node n = (Node)o; return idx == n.idx; } } }