結果

問題 No.97 最大の値を求めるくえり
ユーザー eitaho
提出日時 2015-06-14 23:43:07
言語 C#(csc)
(csc 3.9.0)
結果
AC  
実行時間 1,725 ms / 5,000 ms
コード長 3,904 bytes
コンパイル時間 810 ms
コンパイル使用メモリ 115,204 KB
実行使用メモリ 36,928 KB
最終ジャッジ日時 2024-07-06 20:47:26
合計ジャッジ時間 6,866 ms
ジャッジサーバーID
(参考情報)
judge5 / judge4
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
other AC * 19
権限があれば一括ダウンロードができます
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

diff #
プレゼンテーションモードにする

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
{
static readonly int Mod = 100003;
public void Solve()
{
int N = Reader.Int(), Q = Reader.Int();
var Qs = Reader.IntArray(Q);
var random = new XorShift();
var A = Enu.Range(0, N).Select(i => random.Next(Mod)).ToArray();
A = A.Distinct().ToArray();
int Thre = (int)Math.Sqrt(Mod);
var ans = new StringBuilder();
if (A.Length < Thre)
{
foreach (int q in Qs)
{
long max = -1;
foreach (long a in A) max = Math.Max(max, a * q % Mod);
ans.AppendLine(max + "");
}
}
else
{
bool[] has = new bool[Mod];
foreach (var a in A) has[a] = true;
foreach (int q in Qs)
{
if (q == 0) { ans.AppendLine("0"); continue; }
long qInv = ModPower(q, Mod - 2, Mod);
for (int x = Mod - 1; x >= 0; x--)
if (has[x * qInv % Mod])
{
ans.AppendLine(x + "");
break;
}
}
}
Console.Write(ans);
}
static long ModPower(long x, long n, long mod) // x ^ n
{
long res = 1;
while (n > 0)
{
if ((n & 1) == 1) { res = (res * x) % mod; }
x = (x * x) % mod;
n >>= 1;
}
return res;
}
public class XorShift
{
private uint x = 123456789, y = 362436069, z = 521288629, w = 88675123;
public uint Next()
{
uint t;
t = (x ^ (x << 11));
x = y; y = z; z = w;
return (w = (w ^ (w >> 19)) ^ (t ^ (t >> 8)));
}
public int Next(int Max)
{
return (int)(Next() % Max);
}
public double NextDouble()
{
return (double)Next() / uint.MaxValue;
}
}
}
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;
}
}
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