結果
| 問題 | No.550 夏休みの思い出(1) |
| コンテスト | |
| ユーザー |
くれちー
|
| 提出日時 | 2017-08-08 23:56:53 |
| 言語 | C#(csc) (csc 3.9.0) |
| 結果 |
RE
|
| 実行時間 | - |
| コード長 | 2,992 bytes |
| 記録 | |
| コンパイル時間 | 1,063 ms |
| コンパイル使用メモリ | 119,840 KB |
| 実行使用メモリ | 28,136 KB |
| 最終ジャッジ日時 | 2024-10-12 00:19:27 |
| 合計ジャッジ時間 | 4,685 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 31 RE * 24 |
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.IO;
using System.Linq;
using System.Numerics;
using System.Text;
using static System.Console;
using static System.Convert;
using static System.Math;
using static Extentions;
class IO
{
int idx;
string[] input = In.ReadToEnd().Split(new[] { " ", "\n", "\r" },
StringSplitOptions.RemoveEmptyEntries);
T Get<T>(Func<string, T> parser) => parser(input[idx++]);
public string S => Get(s => s);
public char C => Get(char.Parse);
public int I => Get(int.Parse);
public long L => Get(long.Parse);
public double F => Get(double.Parse);
public decimal D => Get(decimal.Parse);
public BigInteger B => Get(BigInteger.Parse);
T[] Gets<T>(int n, Func<string, T> parser)
=> input.Skip((idx += n) - n).Take(n).Select(parser).ToArray();
public string[] Ss(int n) => Gets(n, s => s);
public char[] Cs(int n) => Gets(n, char.Parse);
public int[] Is(int n) => Gets(n, int.Parse);
public long[] Ls(int n) => Gets(n, long.Parse);
public double[] Fs(int n) => Gets(n, double.Parse);
public decimal[] Ds(int n) => Gets(n, decimal.Parse);
public BigInteger[] Bs(int n) => Gets(n, BigInteger.Parse);
public void Write<T>(params T[] xs) => WriteLine(string.Join(" ", xs));
public void Write(params object[] xs) => WriteLine(string.Join(" ", xs));
}
static class Extentions
{
public static void Swap<T>(ref T x, ref T y)
{
var tmp = x;
x = y;
y = tmp;
}
}
static class Program
{
public static void Main()
{
var sw = new StreamWriter(OpenStandardOutput()) { NewLine = "\n" };
#if DEBUG
sw.AutoFlush = true;
#else
sw.AutoFlush = false;
#endif
SetOut(sw);
Solve(new IO());
Out.Flush();
}
static long a, b, c;
static BigInteger Calc(BigInteger x) => x * x * x + a * x * x + b * x + c;
static int? Search(int low, int high)
{
var ok = high - 1;
var ng = low;
while (Abs(ok - ng) > 1)
{
var mid = (ok + ng) / 2;
if (Calc(mid) >= 0) ok = mid;
else ng = mid;
}
if (Calc(ok) == 0) return ok;
ok = high - 1;
ng = low;
while (Abs(ok - ng) > 1)
{
var mid = (ok + ng) / 2;
if (Calc(mid) <= 0) ok = mid;
else ng = mid;
}
if (Calc(ok) == 0) return ok;
return null;
}
static void Solve(IO io)
{
a = io.L;
b = io.L;
c = io.L;
const int min = (int)-1e9;
const int max = (int)1e9;
var x1 = Search(min, max).Value;
var x2 = Search(min, x1) ?? Search(x1, max).Value;
if (x1 > x2) Swap(ref x1, ref x2);
var x = new SortedSet<int?>() { null, x1, x2 };
x.Add(Search(min, x1));
x.Add(Search(x1, x2));
x.Add(Search(x2, max));
io.Write(x.Skip(1).ToArray());
}
}
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