結果
| 問題 | 
                            No.89 どんどんドーナツどーんといこう!
                             | 
                    
| コンテスト | |
| ユーザー | 
                             syoken_desuka
                         | 
                    
| 提出日時 | 2015-01-24 18:36:03 | 
| 言語 | C#(csc)  (csc 3.9.0)  | 
                    
| 結果 | 
                             
                                AC
                                 
                             
                            
                         | 
                    
| 実行時間 | 25 ms / 5,000 ms | 
| コード長 | 2,681 bytes | 
| コンパイル時間 | 764 ms | 
| コンパイル使用メモリ | 111,876 KB | 
| 実行使用メモリ | 18,944 KB | 
| 最終ジャッジ日時 | 2024-10-05 22:25:51 | 
| 合計ジャッジ時間 | 1,516 ms | 
| 
                            ジャッジサーバーID (参考情報)  | 
                        judge4 / judge2 | 
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| ファイルパターン | 結果 | 
|---|---|
| sample | AC * 2 | 
| other | AC * 9 | 
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.Collections.Generic;
using System.Linq;
using System.Text;
using sc = Scanner;
class Program
{
    static void Main(string[] args)
    {
        int c = sc.NextInt();
        int r_in = sc.NextInt();
        int r_out = sc.NextInt();
        double R = 1.0 * (r_in + r_out) / 2;
        double r = 1.0 * (r_out - r_in) / 2;
        double S = Math.PI * r * r;
        Console.WriteLine(2.0 * c * Math.PI * R * S);
        //Console.WriteLine("みゃーもりかわいい!!!1");
    }
}
public static class Scanner
{
    public static string NextString()
    {
        string tmp = "";
        while (true)
        {
            string readData = char.ConvertFromUtf32(Console.Read());
            if (readData == " " || readData == "\n")
                break;
            tmp += readData;
        }
        return tmp;
    }
    public static string[] NextStrArray()
    {
        return Console.ReadLine().Split(' ');
    }
    public static long[] NextLongArray()
    {
        string[] s = NextStrArray();
        long[] a = new long[s.Length];
        for (int i = 0; i < a.Length; i++)
        {
            a[i] = long.Parse(s[i]);
        }
        return a;
    }
    public static int[] NextIntArray()
    {
        string[] s = NextStrArray();
        int[] a = new int[s.Length];
        for (int i = 0; i < a.Length; i++)
        {
            a[i] = int.Parse(s[i]);
        }
        return a;
    }
    public static int NextInt()
    {
        string tmp = "";
        while (true)
        {
            string readData = char.ConvertFromUtf32(Console.Read());
            if (readData == " " || readData == "\n")
                break;
        
            tmp += readData;
        }
        return int.Parse(tmp);
    }
    public static double NextDouble()
    {
        string tmp = "";
        while (true)
        {
            string readData = char.ConvertFromUtf32(Console.Read());
            if (readData == " " || readData == "\n")
                break;
            tmp += readData;
        }
        return double.Parse(tmp);
    }
    public static long NextLong()
    {
        string tmp = "";
        while (true)
        {
            string readData = char.ConvertFromUtf32(Console.Read());
            if (readData == " " || readData == "\n")
                break;
            tmp += readData;
        }
        return long.Parse(tmp);
    }
    public static double[] NextDoubleArray()
    {
        string[] s = NextStrArray();
        double[] a = new double[s.Length];
        for (int i = 0; i < a.Length; i++)
        {
            a[i] = double.Parse(s[i]);
        }
        return a;
    }
}
            
            
            
        
            
syoken_desuka