結果
問題 |
No.202 1円玉投げ
|
ユーザー |
![]() |
提出日時 | 2015-06-11 15:53:45 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 353 ms / 5,000 ms |
コード長 | 3,235 bytes |
コンパイル時間 | 3,714 ms |
コンパイル使用メモリ | 117,888 KB |
実行使用メモリ | 40,704 KB |
最終ジャッジ日時 | 2024-12-22 09:31:42 |
合計ジャッジ時間 | 11,444 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 38 |
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.Collections.Generic; using System.Diagnostics; using System.Numerics; using Enu = System.Linq.Enumerable; class Program { Dictionary<Point, List<Point>> Dic = new Dictionary<Point, List<Point>>(); public void Solve() { int N = Reader.Int(); for (int i = 0; i < N; i++) { int x = Reader.Int(), y = Reader.Int(); if (OK(x, y)) Add(x, y); } Console.WriteLine(Dic.Values.Sum(list => list.Count)); } private bool OK(int x, int y) { int tx = x / 10, ty = y / 10; for (int nx = tx - 2; nx <= tx + 2; nx++) for (int ny = ty - 2; ny <= ty + 2; ny++) { var key = new Point(nx, ny); if (Dic.ContainsKey(key)) foreach (var p in Dic[new Point(nx, ny)]) if ((p.X - x) * (p.X - x) + (p.Y - y) * (p.Y - y) < 400) return false; } return true; } private void Add(int x, int y) { var key = new Point(x / 10, y / 10); if (!Dic.ContainsKey(key)) Dic[key] = new List<Point>(); Dic[key].Add(new Point(x, y)); } struct Point : IEquatable<Point> { public int X, Y; public Point(int x, int y) { X = x; Y = y; } public bool Equals(Point B) { return X == B.X && Y == B.Y; } public override int GetHashCode() { return X * 10000 + Y; } } } class Entry { static void Main() { new Program().Solve(); } } class Reader { private static TextReader reader = Console.In; private static readonly char[] separator = { ' ' }; private static readonly StringSplitOptions op = StringSplitOptions.RemoveEmptyEntries; private static string[] A = new string[0]; private static int i; private static void Init() { A = new string[0]; } public static void Set(TextReader r) { reader = r; Init(); } public static void Set(string file) { reader = new StreamReader(file); Init(); } public static bool HasNext() { return CheckNext(); } public static string String() { return Next(); } public static int Int() { return int.Parse(Next()); } public static long Long() { return long.Parse(Next()); } public static double Double() { return double.Parse(Next()); } public static int[] IntLine() { return Array.ConvertAll(Split(Line()), int.Parse); } public static int[] IntArray(int N) { return Enu.Range(0, N).Select(i => Int()).ToArray(); } public static int[][] IntTable(int H) { return Enu.Range(0, H).Select(i => IntLine()).ToArray(); } public static string[] StringArray(int N) { return Enu.Range(0, N).Select(i => Line()).ToArray(); } public static string Line() { return reader.ReadLine().Trim(); } private static string[] Split(string s) { return s.Split(separator, op); } private static string Next() { CheckNext(); return A[i++]; } private static bool CheckNext() { if (i < A.Length) return true; string line = reader.ReadLine(); if (line == null) return false; if (line == "") return CheckNext(); A = Split(line); i = 0; return true; } }