結果
| 問題 |
No.576 E869120 and Rings
|
| コンテスト | |
| ユーザー |
sekiya9311
|
| 提出日時 | 2017-10-13 22:43:36 |
| 言語 | C#(csc) (csc 3.9.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 3,799 bytes |
| コンパイル時間 | 1,382 ms |
| コンパイル使用メモリ | 112,320 KB |
| 実行使用メモリ | 32,368 KB |
| 最終ジャッジ日時 | 2024-11-17 11:36:54 |
| 合計ジャッジ時間 | 12,001 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 11 WA * 16 |
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 System.Threading.Tasks;
namespace ProgrammingContest
{
class MainClass
{
Scanner sc;
static void Main(string[] args)
{
new MainClass().Solve();
}
void Solve()
{
#if DEBUG
string backPath = "..";
char dirSep = System.IO.Path.DirectorySeparatorChar;
string inFilePath = backPath + dirSep + backPath + dirSep + "in.txt";
sc = new Scanner(new System.IO.StreamReader(inFilePath));
#else
sc = new Scanner();
#endif
N = sc.NextInt;
K = sc.NextInt;
string s = sc.Next;
a = new int[N * 2];
for (int i = 0; i < N; i++)
{
a[i] = a[N + i] = s[i] - '0';
}
int high = N, low = K;
while (high - low > 100)
{
int mid1 = (high + (low << 1)) / 3;
int mid2 = ((high << 1) + low) / 3;
if (mid1 <= mid2)
{
high = mid2;
}
else
{
low = mid1;
}
}
double ans = 0;
for (int i = low; i <= high; i++)
{
ans = Math.Max(ans, calc(i));
}
Write(ans);
}
double calc(int cnt)
{
// Console.Error.WriteLine("cnt = {0}", cnt);
double ret = 0;
int nowSum = 0;
for (int i = 0; i < cnt; i++)
{
nowSum += a[i];
}
ret = Math.Max(ret, 1.0 * nowSum / cnt);
for (int i = cnt; i < N * 2; i++)
{
//Console.Error.WriteLine("({0}, {1})", i - cnt + 1, i + 1);
nowSum -= a[i - cnt];
nowSum += a[i];
ret = Math.Max(ret, 1.0 * nowSum / cnt);
}
return ret;
}
int N, K;
int[] a;
void Write(object val)
{
Console.WriteLine(val.ToString());
}
void Write(string format, params object[] vals)
{
Console.WriteLine(format, vals);
}
}
class Scanner
{
Queue<String> buffer;
char[] sep;
System.IO.TextReader reader;
public Scanner(System.IO.TextReader reader = null)
{
this.buffer = new Queue<string>();
this.sep = new char[] { ' ' };
this.reader = (reader ?? Console.In);
}
private void CheckBuffer()
{
if (this.buffer.Count == 0 && this.reader.Peek() >= 0)
{
string[] sreArray = this.reader.ReadLine().Split(this.sep);
foreach (String elStr in sreArray)
{
this.buffer.Enqueue(elStr);
}
}
}
public String Next
{
get
{
this.CheckBuffer();
return this.buffer.Dequeue();
}
}
public int NextInt
{
get
{
return int.Parse(this.Next);
}
}
public double NextDouble
{
get
{
return double.Parse(this.Next);
}
}
public long NextLong
{
get
{
return long.Parse(this.Next);
}
}
public bool IsEmpty
{
get
{
this.CheckBuffer();
return this.buffer.Count == 0;
}
}
}
}
sekiya9311