結果
問題 | No.168 ものさし |
ユーザー | eitaho |
提出日時 | 2015-03-20 00:02:30 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 165 ms / 2,000 ms |
コード長 | 2,938 bytes |
コンパイル時間 | 3,402 ms |
コンパイル使用メモリ | 117,288 KB |
実行使用メモリ | 19,712 KB |
最終ジャッジ日時 | 2024-06-06 14:47:11 |
合計ジャッジ時間 | 3,153 ms |
ジャッジサーバーID (参考情報) |
judge5 / 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 | 76 ms
19,456 KB |
testcase_01 | AC | 32 ms
19,072 KB |
testcase_02 | AC | 31 ms
19,200 KB |
testcase_03 | AC | 32 ms
19,200 KB |
testcase_04 | AC | 31 ms
18,944 KB |
testcase_05 | AC | 31 ms
19,200 KB |
testcase_06 | AC | 32 ms
19,200 KB |
testcase_07 | AC | 31 ms
19,328 KB |
testcase_08 | AC | 31 ms
19,200 KB |
testcase_09 | AC | 30 ms
19,328 KB |
testcase_10 | AC | 32 ms
19,328 KB |
testcase_11 | AC | 40 ms
19,328 KB |
testcase_12 | AC | 62 ms
19,712 KB |
testcase_13 | AC | 61 ms
19,712 KB |
testcase_14 | AC | 33 ms
19,584 KB |
testcase_15 | AC | 31 ms
19,328 KB |
testcase_16 | AC | 32 ms
19,072 KB |
testcase_17 | AC | 34 ms
19,200 KB |
testcase_18 | AC | 33 ms
19,328 KB |
testcase_19 | AC | 88 ms
19,584 KB |
testcase_20 | AC | 71 ms
19,456 KB |
testcase_21 | AC | 165 ms
19,712 KB |
testcase_22 | AC | 71 ms
19,584 KB |
コンパイルメッセージ
Microsoft (R) Visual C# Compiler version 3.9.0-6.21124.20 (db94f4cc) Copyright (C) Microsoft Corporation. All rights reserved.
ソースコード
using System; using System.IO; using System.Linq; using System.Text; using System.Diagnostics; using System.Collections.Generic; using System.Text.RegularExpressions; using Enu = System.Linq.Enumerable; class Program { void Solve() { int N = reader.Int(); var P = reader.IntGrid(N); long lb = 0, ub = (long)2e8 + 1; while (ub - lb > 1) { long mid = (lb + ub) / 2; long lenSq = (10 * mid) * (10 * mid); if (Reachable(P, lenSq)) ub = mid; else lb = mid; } Console.WriteLine(ub * 10); } private bool Reachable(int[][] P, long lenSq) { var que = new Queue<int>(); que.Enqueue(0); bool[] seen = new bool[P.Length]; Func<long, long> Sq = n => n * n; Func<int, int, long> DistSq = (a, b) => Sq(P[a][0] - P[b][0]) + Sq(P[a][1] - P[b][1]); while (que.Count > 0) { int at = que.Dequeue(); seen[at] = true; for (int next = 0; next < P.Length; next++) if (!seen[next] && DistSq(at, next) <= lenSq) { if (next == P.Length - 1) return true; seen[next] = true; que.Enqueue(next); } } return false; } Reader reader = new Reader(Console.In); static void Main() { new Program().Solve(); } } class Reader { private readonly TextReader reader; private readonly char[] separator = { ' ' }; private readonly StringSplitOptions removeOp = StringSplitOptions.RemoveEmptyEntries; private string[] A = new string[0]; private int i; public Reader(TextReader r) { reader = r; } public Reader(string file) { reader = new StreamReader(file); } public bool HasNext() { return Enqueue(); } public string String() { return Dequeue(); } public int Int() { return int.Parse(Dequeue()); } public long Long() { return long.Parse(Dequeue()); } public double Double() { return double.Parse(Dequeue()); } public int[] IntLine() { var s = Line(); return s == "" ? new int[0] : Array.ConvertAll(Split(s), int.Parse); } public int[] IntArray(int N) { return Enu.Range(0, N).Select(i => Int()).ToArray(); } public int[][] IntGrid(int H) { return Enu.Range(0, H).Select(i => IntLine()).ToArray(); } public string[] StringArray(int N) { return Enu.Range(0, N).Select(i => Line()).ToArray(); } public string Line() { return reader.ReadLine().Trim(); } private string[] Split(string s) { return s.Split(separator, removeOp); } private bool Enqueue() { if (i < A.Length) return true; string line = reader.ReadLine(); if (line == null) return false; if (line == "") return Enqueue(); A = Split(line); i = 0; return true; } private string Dequeue() { Enqueue(); return A[i++]; } }